JP2017069705A - Reception device, reception method, broadcast system, and program - Google Patents

Abstract

Dialog voice can be provided more usefully. A channel state acquisition unit acquires channel state information indicating a selection state of a dialog-dedicated channel that provides a dialog sound among a plurality of channels provided in a broadcast program, and the sound processing unit is dedicated to the dialog. The volume of the channel and the volume of the other channels of the plurality of channels are respectively controlled, and the audio setting unit requests the communication device for volume control data of the dialog dedicated channel indicated by the channel state information, and from the communication device The volume of the dialog dedicated channel is determined based on the received control data. [Selection] Figure 7

Description

  The present invention relates to a receiving apparatus, a receiving method, a broadcasting system and a program, and more particularly to a television broadcasting system.

  In digital television broadcasting, it has been considered to provide a dialog dedicated channel that enables volume control independent of other channels for some channels of multi-channel audio. Dialog audio is provided as a part of the program to the dialog dedicated channel. The dialog voice compatible receiving apparatus recognizes that dialog voice is provided, and enables volume adjustment for the dialog dedicated channel separately from volume adjustment for all channels. This allows the user to adjust the volume of the dialog voice to a desired level that is easy to hear. A plurality of audio contents may be provided as dialog audio in a program. The user can select any one of a plurality of audio contents and switch arbitrarily.

  For example, Patent Literature 1 is combined with a dialog volume control unit, a main volume control unit, a dialog volume control unit, and a main volume control unit, and a dialog volume adjustment signal and a main volume for individually adjusting the dialog volume and the main volume. An apparatus is described that includes a circuit portion configured to individually generate a volume control signal.

Special table 2010-515290

  However, the ease of hearing of the dialog voice may differ depending on factors related to viewing such as the type of program and the surrounding environment, as well as the relationship with the volume of other voices. For this reason, the user may not have a clear target volume for listening to the dialog voice. On the other hand, it is troublesome for the user to adjust the volume of the dialog voice each time.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a receiving apparatus, a receiving method, a broadcasting system, and a program that can provide dialog voice more effectively.

  The present invention has been made to solve the above problems, and one aspect of the present invention is to select a dialog-dedicated channel that provides dialog sound from among a plurality of channels provided in a broadcast program. A channel state acquisition unit that acquires channel state information that is indicated; a sound processing unit that controls the volume of the channel dedicated to the dialog; the volume of other channels of the plurality of channels; and the channel dedicated to the dialog indicated by the channel state information A sound setting unit that requests the communication device for volume control data and determines the volume of the dialog-dedicated channel based on the control data received from the communication device.

  According to one embodiment of the present invention, dialog voice can be provided more usefully.

1 is a schematic block diagram of a broadcasting system according to a first embodiment. It is a figure for demonstrating a dialog audio | voice. It is a figure for demonstrating volume adjustment of a dialog sound. It is a block diagram which shows the structure of the transmitter which concerns on 1st Embodiment. It is a block diagram which shows the structure of the communication apparatus which concerns on 1st Embodiment. It is a figure which shows the example of a relative level table. It is a block diagram which shows the structure of the receiver which concerns on 1st Embodiment. It is a figure which shows the example of a notification screen. It is an external view which shows the example of a remote controller. It is a sequence diagram which shows the information processing which concerns on 1st Embodiment. It is a schematic block diagram of the broadcasting system which concerns on 2nd Embodiment.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic block diagram of a broadcast system 1 according to the present embodiment.
The broadcasting system 1 is a broadcasting / communication cooperation system including a transmission device 10, a communication device 20, and a reception device 30. In the broadcasting system 1, there can generally be a plurality of transmission apparatuses 10, communication apparatuses 20, and reception apparatuses 30. However, in the following, for the sake of brevity, an example is given in which the number of transmission devices 10, the number of communication devices 20, and the number of reception devices 30 are each one.

  The broadcast system 1 is a system that transmits program data indicating content constituting a broadcast program using a predetermined multiplexing / transmission method. The content is a component of a broadcast program such as audio and video, and is information presented by the receiving device 30. The program data includes audio data indicating sound and video data indicating video as broadcast program content. In the following description, a case where a media transport system based on MMT (MPEG Media Transport) and TLV (Type Length Value) defined mainly by MPEG-H is used as an example of multiplexing and transmission systems.

The transmission device 10 acquires program data and control data for controlling presentation of a broadcast program, multiplexes the acquired program data and control data, and generates multiplexed data. The acquired program data is data including encoded audio data and encoded video data. The program data includes video data and audio data. Individual components such as video data and audio data may be referred to as assets. In the present embodiment, the dialog sound is included in the content of the broadcast program. The dialog sound is sound that is reproduced on a predetermined channel among the sound of a plurality of channels (multi-channel sound). The dialog sound may be transmitted in the same stream as normal broadcast sound (broadcast sound) or may be transmitted in a separate stream. The dialog sound will be described later.
The transmission device 10 transmits a broadcast wave carrying the generated multiplexed data to the reception device 30 via the broadcast transmission path 40. The transmission device 10 is, for example, a transmission device that constitutes broadcast facilities of a broadcaster.

  The communication device 20 transmits a predetermined application to the receiving device 30. This application is described in a predetermined description language (for example, HTML5), and may include any or a combination of audio data, video data, and text data that constitute a part of a broadcast program. This application may include notification information or a command for causing the display unit 35 to display the notification information. In addition, the communication device 20 acquires channel state information indicating the channel state including the selection state of the dialog dedicated channel of the dialog sound from the receiving device 30. Then, the communication device 20 determines control data indicating the audio type and volume of the dialog dedicated channel based on the channel state information. The communication device 20 transmits the determined control data to the receiving device 30. The communication device 20 is, for example, a broadcaster or content provider server device.

  The receiving device 30 is an electronic device that can receive multiplexed data from the transmitting device 10 via the broadcast transmission path 40 and present broadcast program content represented by program data included in the received multiplexed data. In addition, the receiving device 30 presents a part of the content of the broadcast program by performing processing according to a command indicated by the application received from the communication device 20 via the communication transmission path 50. The receiving device 30 acquires the channel state including the selection state of the dialog-dedicated channel of the dialog sound to be played back in a predetermined channel from the audio of the broadcast program, and controls the volume of the dialog-dedicated channel and the volume of other channels, respectively. To do. The receiving device 30 requests the communication device 20 for volume control data of the dialog dedicated channel according to the channel state, and sets the volume of the dialog dedicated channel based on the control data received from the communication device 20. The receiving device 30 is, for example, a television receiver or other electronic device having a receiving function for television broadcasting.

  The receiving device 30 detects that the multi-channel audio indicated by the audio data received from the transmitting device 10 or the communication device 20 is audio data including dialog audio. The receiving device 30 controls the volume of the dialog-dedicated channel that reproduces the dialog sound among the plurality of channels and the volume of the other channels. The receiving device 30 outputs notification data (described later) regarding the detected dialog voice to a notification unit (described later). The user who contacts the notification indicated by the notification data can notice the presence of the dialog voice. In addition, by including guidance information regarding the adjustment of the volume of the dialog dedicated channel in the notification data, the user can be notified that the volume of the dialog voice can be adjusted independently of the other channels and the adjustment method. Also, by including commentary information related to the dialog sound in the notification data, for example, it is possible to let the user know the intention that the broadcaster or the program producer provided the dialog sound, and the outline and significance of the dialog sound.

  The broadcast transmission path 40 is a transmission path capable of unilaterally transmitting various data to a plurality of receiving devices 30 at the same time. The broadcast transmission path 40 includes a broadcast satellite 41. The broadcast satellite 41 is equipped with a relay device (not shown) that relays the broadcast wave transmitted by the transmission device 10 and transmits the relayed broadcast wave to the reception device 30. The broadcast transmission path 40 may include a communication line, for example, a communication network that connects between the transmission device 10 and the transmission antenna in a wired or wireless manner. Note that transmission (transmission, reception) of various data via the broadcast transmission path 40 is referred to as “transmission (transmission, reception)”.

  The communication transmission path 50 is a transmission path for bidirectionally transmitting various data between the communication apparatus 20 and the receiving apparatus 30. The communication transmission path 50 includes, for example, a wide area communication network such as the Internet or a public wireless communication network. The communication transmission path 50 may partially include a local area network (LAN) or a dedicated access network. Note that transmitting (or transmitting or receiving) various data via the communication transmission path 50 may be referred to as “transmitting (or transmitting or receiving) by communication”.

(Dialog voice)
Next, dialog voice will be described. FIG. 2 is a diagram for explaining dialog voice. Dialog sound is sound reproduced using a predetermined channel among a plurality of channels. Dialog audio is typically used as part of surround audio with more channels than 2ch. A dialog is a word that originally means a dialogue for a performance such as a drama or a movie. In this embodiment, a dialogue voice is not limited to a dialogue but is mainly a voice spoken by a human or a synthesized voice. Thus, it also includes audio representing the contents, points, meaning, background, etc. of the broadcast program. Dialog voice includes, for example, commentary of a program such as a sports broadcast, a performance program, and a news program, and a specific singing voice in music. In addition, the dialog voice may be provided as a foreign language voice spoken in a foreign language or a multilingual voice including them. Dialog voices may also be used to supplement perceptual disturbances such as visual impairment and hearing impairment. As the audio for visual impairment, for example, commentary audio representing information represented by the video is used. As the sound for hearing impairment, for example, a voice having a slower utterance speed than a normal voice or a voice having a louder volume than a normal voice is used.

  FIG. 2 shows an example in which the receiving apparatus 30 uses surround 5.1ch as a multi-channel audio reproduction method. Surround 5.1ch is based on a predetermined listening position Os as a front front (C: Center), front left (L: Left), front right (R: Right), rear left (LS: Left Surround), rear right ( This is a reproduction method using five speakers installed in RS (Right Surround) and a speaker dedicated to low-frequency effect sound (LFE), which is a sound of a frequency band lower than a predetermined frequency. Each channel or speaker of front front (C), front left (L), front right (R), rear left (LS), rear right (RS), and low-frequency sound effect (LFE) is FC (Front Center). , FL (Front Left), FR (Front Right), SL (Surround Left), SR (Surround Right), and SW (Sub-woofer).

  As a dedicated channel for dialog, which is a channel for reproducing dialog sound, usually, any one of the front front (C), front left (L), front right (R) channels or a combination thereof is often used. Sound effect (LFE) channels are not used. This is for allowing the user to perceive the dialog sound in front of the front so that the contents such as the dialogue and the commentary sound expressed by the dialog sound can be clearly understood. Therefore, by using a voice having a predetermined content as a dialog voice, the user can easily grasp the content. For example, dialog voices are intended to focus on the contents according to various requirements such as the user's language and preferences, to supplement the user's hearing, and to reduce the influence of the viewing environment such as reverberation and noise. Sometimes used. In the above description, the channel mainly means a unit of audio data input / output and reproduction. Hereinafter, it may be distinguished from a broadcast channel which is a transmission path (frequency) assigned to each broadcast station or broadcast network by calling an audio channel.

(Adjust volume of dialog voice)
Next, the volume adjustment of the dialog sound will be described.
FIG. 3 is a diagram for explaining the volume adjustment of the dialog sound.
The receiving apparatus 30 individually controls the volume of the dialog dedicated channel for reproducing the dialog sound among the plurality of channels and the volume of the other channels. In the example shown in FIG. 3, the volume of the dialog-dedicated channel is specified by a relative level that is a difference from the volume (main volume) of other channels. The vertical axis and the horizontal axis indicate the volume level and the relative level, respectively. FIG. 3 shows the volume levels of the dialog dedicated channel and other channels when the relative levels are +10 dB, +7 dB, 0 dB, and −3 dB in order from left to right. The volume level of the dialog-dedicated channel and the volume level of the other channels are each represented by a solid bar graph.

  In the example shown in FIG. 3, the reference value of the sound volume level common to all channels is 0 dB, and the sound volume level is controlled so as not to exceed the reference value regardless of the relative level. When the relative level is higher than 0 dB, the volume level of the dialog-dedicated channel is fixed to the reference value, and the volume of the other channels decreases as the relative level increases. When the relative level is less than 0 dB, the volume of the other channels is fixed to the reference value, and the volume of the dialog dedicated channel is lower as the relative level is lower. For example, when the relative level is +10 dB, the volume levels of the dialog dedicated channel and the other channels are 0 dB and −10 dB, respectively. When the relative level is −3 dB, the volume levels of the dialog dedicated channel and the other channels are −3 dB and 0 dB, respectively. Hereinafter, the sound volume level of the dialog dedicated channel is referred to as a dialog volume, the volume level of other channels is referred to as the other channel volume, and the volume level common to all channels is referred to as the channel common volume.

  The playback mode, that is, the number of audio channels constituting one asset is specified by the control data. For example, when the control data is represented by MMT-SI (MMT-System Information), it is specified in a descriptor area for each asset of MPT (MMT Package Table). In the descriptor area, the playback mode is represented by the least significant 5 bits in the component type (component-type) of the MH-audio component descriptor for an asset whose type is audio. For example, surround 5.1 ch (3 / 2.1 mode), surround 7.1 ch (5 / 2.1 mode), surround 22.2 ch (3/3/3 · 5/2/3 · 3/0/0) .2 mode) and normal stereo 2ch (2/0 mode) are represented as “01001”, “01100”, “10001”, and “00011”, respectively.

  Dialog control information indicating a dialog audio channel and a default relative level may be added to the audio data. The presence / absence of dialog control information is represented by the most significant bit in the component type of the MH-voice component descriptor. For example, “1” and “0” indicate that each audio stream (audio data) includes or does not include dialog control information. Audio data is LATM / LOAS (Low-overhead MPEG-4 Audio Transport Multiplex / Low Overhead Audio Stream) stream format is LOAS, LATM header, SCE1 (Single Channel Element 1), CPE1C PCE (Program Configuration Element), DSE (Data Stream Element), and TERM (Terminator). Dialog control information is described in the DSE. In addition, element configuration information indicating the correspondence between SCE1, CPE1, CPE2, and LFE and each channel and the presence or absence of dialog control information may be stored in the PCE.

(Configuration of transmitter)
Next, the configuration of the transmission device 10 according to the present embodiment will be described.
FIG. 4 is a block diagram illustrating a configuration of the transmission device 10 according to the present embodiment. The transmission device 10 includes a program data acquisition unit 11, a control data acquisition unit 12, a multiplexing unit 13, a modulation unit 14, and a transmission unit 15.

  The program data acquisition unit 11 acquires video data indicating video composing a broadcast program and audio data indicating audio. The program data acquisition unit 11 acquires video data encoded by a predetermined video encoding method. The predetermined video encoding method is, for example, ISO / IEC 23008 HEVC (International Organization for Standardization / International Electrical Commission 23008 Part 2 High Efficient Video Coding, also referred to as E coding C).

  Further, the program data acquisition unit 11 acquires audio data encoded by a predetermined audio encoding method. The predetermined audio encoding method is, for example, an audio encoding method defined by ISO / IEC 14496 Part 3 (also referred to as MPEG-4 audio). The program data acquisition unit 11 may acquire audio data in a plurality of playback modes simultaneously in one program. The program data acquisition unit 11 generates program data in a predetermined format from the acquired video data and audio data, and outputs the generated program data to the multiplexing unit 13. The program data in a predetermined format is, for example, an MMTP (MMT Protocol) packet defined by ISO / IEC 23008 Part1 MMT. Each MMTP packet includes video data or audio data of a unit that can perform video or audio decoding processing. Regarding the audio data, the program data acquisition unit 11 functions as an audio data acquisition unit that acquires audio data of one or more units (assets or components) constituting the program.

  The control data acquisition unit 12 acquires control data for controlling a broadcast program and a service provided along with the broadcast. The control data includes MMT-SI related to MMT, which is one of media transport systems. The MMT-SI includes MPT indicating assets constituting a broadcast program as configuration information, and MH-AIT (MH-Application Information Table: application information table) related to the broadcast program as control information. The MH-AIT is data indicating control information related to an application program (hereinafter referred to as an application) and additional information required for execution. More specifically, the MH-AIT includes URL (Uniform Resource Locator) of the communication device 20 as acquisition destination information of the application and other control data, and information for controlling the execution such as starting and stopping of the application. Is included. The control data acquisition unit 12 outputs the acquired control data to the multiplexing unit 13.

The multiplexing unit 13 outputs, to the modulation unit 14, an MMTP packet sequence including MMTP packets obtained by segmenting the program data input from the program data acquisition unit 11 and the control data input from the control data acquisition unit 12 as multiplexed data. To do.
The modulation unit 14 modulates the multiplexed data input from the multiplexing unit 13 using a predetermined modulation method (for example, QPSK: Quadrature Phase Shift Keying) to generate a baseband signal. The modulation unit 14 outputs the generated baseband signal to the transmission unit 15.
The transmission unit 15 modulates a carrier wave having a predetermined carrier frequency with the baseband signal input from the modulation unit 14, and generates a broadcast signal in a broadcast channel band corresponding to the carrier frequency. The transmission unit 15 radiates the generated broadcast signal as a radio wave (broadcast wave) via an antenna (not shown).

(Configuration of communication device)
Next, the configuration of the communication device 20 according to the present embodiment will be described.
FIG. 5 is a block diagram illustrating a configuration of the communication device 20 according to the present embodiment. The communication device 20 includes a data input unit 21, a communication unit 22, a storage unit 23, and a control unit 24. The control unit 24 performs a process for realizing the function of the communication device 20. The control unit 24 includes a program acquisition unit 241 and a dialog setting unit 242. The control unit 24 includes a control device such as a CPU (Central Processing Unit) that executes various processes. The control unit 24 may read a control program stored in the storage unit 23 in advance, and execute processing instructed by a command described in the read control program. With this execution, the functions of the program acquisition unit 241 and the dialog setting unit 242 are realized.

The data input unit 21 outputs various data input from the outside of the communication device 20 to the control unit 24. The input data includes an application, a relative level table (described later), and the like. Data is input when switching of data is required such as switching of programs and segments constituting the program, and other events such as start of events and switching. The data input unit 21 is, for example, a data input / output interface.
The communication unit 22 transmits and receives various data to and from the receiving device 30 connected via the communication transmission path 50. The communication unit 22 is, for example, a communication interface.

  The storage unit 23 includes a storage medium that stores various data. The data stored in the storage unit 23 includes data required for processing in the control unit 24 and data acquired by the control unit 24. Specifically, the data includes the above-described application and a relative level table (described later). The storage unit 23 may store a relative level table in which different relative levels are set according to program attributes, for example, genres. As information for specifying the attributes of the program, the storage unit 23 may further store an MH-event information table (MH-EIT: MH-Event Information Table). The MH-EIT is an information table formed by associating channel selection information with program attribute information. The MH-EIT is included in the MMT-SI transmitted from the transmission device 10. The storage unit 23 includes, for example, a RAM (Random Access Memory) and an HDD (Hard-disk Drive).

  The program acquisition unit 241 stores the application input from the data input unit 21 in the storage unit 23. The program acquisition unit 241 reads the application specified by the application request signal received from the reception device 30 via the communication unit 22 from the storage unit 23. The program acquisition unit 241 transmits the application read as a response to the received application request signal to the receiving device 30 via the communication unit 22.

  When the dialog setting unit 242 receives a voice control data request signal from the receiving device 30 via the communication unit 22, the dialog setting unit 242 determines voice control data based on channel state information (described later) included in the voice control data request signal. The dialog setting unit 242 transmits the determined voice control data to the receiving device 30 via the communication unit 22. The dialog setting unit 242 includes a channel state acquisition unit 243 and an audio control data setting unit 244.

  The channel state acquisition unit 243 receives the voice control data request signal from the reception device 30 via the communication unit 22. The voice control data request signal includes channel state information. The channel state information includes a device ID (Identifier), reception channel information, audio channel information, and channel selection information. The device ID is identification information for identifying each receiving device 30. The reception channel information indicates a broadcast channel corresponding to a frequency at which the receiving device 30 receives a broadcast wave. The audio channel information is information indicating whether or not the audio channel selected by the receiving device 30 is a dialog dedicated channel. When a plurality of dialog-dedicated channels are set in the broadcast program, the audio channel information may include information for specifying any of the set dialog-dedicated channels. The channel selection information includes event identification (event_id) and service identification (service_id). The event identification is identification information for identifying an individual event provided by one information service, that is, a program. The service identification is identification information for identifying individual information services indicated by the TLV stream, that is, the transmission signal transmitted by the broadcast wave described above. Therefore, the channel selection information indicates the program being received at that time.

  When the audio channel information indicates a dialog-dedicated channel, the audio control data setting unit 244 determines the attribute of the program indicated by the channel selection information included in the channel state information with reference to the MH-EIT stored in the storage unit 23 in advance. . The audio control data setting unit 244 determines a relative level table corresponding to the determined program attribute, and refers to the determined relative level table to determine a relative level corresponding to the dialog dedicated channel included in the channel state information. The voice control data setting unit 244 generates voice control data indicating a relative level determined for the dialog dedicated channel. Depending on the attribute, there is an attribute for which the relative level table is not set. For such attributes, the voice control data setting unit 244 generates voice control data indicating user settings as voice control data. The voice control data setting unit 244 transmits the generated voice control data to the receiving device 30 via the communication unit 22.

  Note that various data provided to the communication device 20 and stored in the storage unit 23 may be updated by switching events such as a program and a corner (also referred to as a segment) that is a part of the program. The updated data includes at least a relative level table. In that case, the voice control data setting unit 244 refers to the updated relative level table, and sets the relative level corresponding to the dialog dedicated channel included in the latest channel state information acquired by the channel state acquisition unit 243 up to that point. Determine. The voice control data setting unit 244 generates voice control data indicating a relative level related to the defined dialog dedicated channel, and transmits the generated voice control data to the receiving device 30 via the communication unit 22.

(Relative level table)
Next, an example of a relative level table will be described. FIG. 6 is a diagram illustrating an example of a relative level table. The relative level table is data that is generated for each program attribute and indicates a relative level for each audio channel. In this example, 1ch, 2ch, and 3ch indicate the front front (C), front left (L), and front right (R) channels shown in FIG. FIG. 6A is a relative level table related to a music program whose program attribute is normal (standard). In the example shown in FIG. 6A, the relative levels of 1ch, 2ch, and 3ch are 0.0 dB, +1.0 dB, and -1.0 dB, respectively. Accordingly, the receiving device 30 determines the relative level indicated by the voice control data received from the communication device 20 as the relative level of the dialog dedicated channel selected at that time.

  FIG. 6B is a relative level table relating to a music program whose program attribute is live. In the example shown in FIG. 6B, the relative levels of 1ch, 2ch, and 3ch are 0.0 dB, +1.5 dB, and -1.5 dB, respectively. The relative level difference between the channels is larger than in the example shown in FIG. No relative level table is set for music programs related to other attributes. In that case, the receiving device 30 receives the voice control data indicating the user setting from the communication device 20, and the relative level set at that time is used.

(Receiver configuration)
Next, the configuration of the receiving device 30 according to this embodiment will be described.
FIG. 7 is a block diagram illustrating a configuration of the receiving device 30 according to the present embodiment. The receiving device 30 includes a broadcast receiving unit 31, a communication unit 32, a loudspeaker unit 33, an input unit 34, a display unit 35, a storage unit 36, and a control unit 37. The control unit 37 performs processing for realizing the function of the receiving device 30.

The broadcast receiving unit 31 receives a broadcast wave carrying multiplexed data from the transmission device 10 via the broadcast transmission path 40. The broadcast receiving unit 31 is, for example, a tuner. The broadcast receiver 31 down-converts the broadcast signal in the broadcast channel band by the broadcast wave received via the broadcast transmission path 40 with the carrier frequency corresponding to the selected broadcast channel, and generates a baseband signal. The broadcast channel is indicated by an operation signal input from the input unit 34. The broadcast receiving unit 31 outputs the generated baseband signal to the control unit 37.
The communication unit 32 transmits and receives various data to and from the communication device 20 connected via the communication transmission path 50. The communication unit 32 is, for example, a communication interface.
The loudspeaker 33 reproduces sound based on the sound signal input from the controller 37. The loudspeaker 33 includes, for example, a plurality of speakers. Individual speakers are used to reproduce the sound of each channel. The loudspeaker 33 can reproduce 5.1ch surround sound by providing six speakers.

  The input unit 34 acquires an operation signal corresponding to a user operation input, and outputs the acquired operation signal to the control unit 37. An operation signal transmitted wirelessly or by wire from another device may be input, and an input / output interface or a communication interface that outputs the input operation signal to the control unit 37 may be included. The other devices are electronic devices such as a dedicated remote control device (remote controller) and a general-purpose mobile phone (including a so-called smartphone), for example. The input unit 34 may be configured to include physical members such as switches, buttons, and knobs, or may be configured to include general-purpose members such as a mouse and a touch sensor.

The display unit 35 displays the video indicated by the display data (video signal) acquired from the control unit 37. The display unit 35 is, for example, a display such as a liquid crystal display or an organic EL (Electro-Luminescence) display.
The storage unit 36 includes a storage medium such as a RAM or a ROM. Other storage media may include non-volatile memory, HDD, and the like. The storage unit 36 includes a storage medium that stores various data. The data stored in the storage unit 36 includes data required for processing performed by the control unit 37 and data acquired by the control unit 37.

  The control unit 37 includes a demodulation unit 371, a separation unit 372, an audio processing unit 373, a notification processing unit 374, a video processing unit 375, and a dialog processing unit 376. The control unit 37 includes a control device such as a CPU (Central Processing Unit) that executes various processes. The control unit 37 may read a control program stored in advance in the storage unit 36 and execute processing instructed by a command described in the read control program. With this execution, the functions of the demodulation unit 371, the separation unit 372, the audio processing unit 373, the notification processing unit 374, the video processing unit 375, and the dialog processing unit 376 are realized. For example, the functions of the notification processing unit 374, the channel state acquisition unit 3763 of the dialog processing unit 376, and the voice setting unit 3764 can be used via a voice state change notification listener API (Application Interface), a voice information acquisition API, and a voice setting API. It is.

  The demodulator 371 demodulates the baseband signal input from the broadcast receiver 31 using a predetermined demodulation method. The demodulation method used in the demodulation unit 371 is a demodulation method corresponding to the modulation method used in the transmission device 10. Demodulation section 371 outputs multiplexed data obtained by demodulation to separation section 372.

  The demultiplexing unit 372 receives multiplexed data transmitted by broadcasting from the demodulation unit 371. The separation unit 372 extracts control data and program data from multiplexed data transmitted by broadcasting. The separation unit 372 separates audio data and video data that are elements of program data based on MPT as broadcast program configuration information included in the control data. The separation unit 372 outputs the audio data for each channel to the audio processing unit 373 and the dialog processing unit 376 for the playback mode specified by the MPT for the separated audio data, and outputs the video data to the video processing unit 375. The separation unit 372 outputs MPT and MH-EIT included in the control data to the dialog processing unit 376. In addition, the separation unit 372 extracts MH-AIT as control information included in the control data, and outputs the extracted MH-AIT to the dialog processing unit 376.

The audio processing unit 373 acquires an audio signal indicating the audio to be reproduced by the loudspeaker unit 33. The audio processing unit 373 includes an audio decoding unit 3731 and a volume control unit 3732.
The audio decoding unit 3731 decodes the audio data for each channel input from the separation unit 372 using a predetermined audio decoding method, and outputs the audio signal of each channel obtained by the decoding to the volume control unit 3732. . The predetermined speech decoding method is a speech decoding method corresponding to the speech encoding method used for generating speech data.

  The volume control unit 3732 controls the volume related to the audio signal of each channel input from the audio decoding unit 3731. Based on the operation signal input from the input unit 34, the volume of the dialog dedicated channel (hereinafter referred to as dialog volume) and the volume of other channels are individually controlled. Specifically, the volume control unit 3732 determines the dialog volume and the other channel volume based on the relative level specified by the operation signal and the common channel volume as described with reference to FIG. Specifically, when the determined relative level is 0 dB or more, the volume control unit 3732 determines the dialog volume as a predetermined reference value (for example, 0 dB), and sets the other channel volume relative to the predetermined reference value. The value is obtained by subtracting the level. When the read relative level is less than 0 dB, the volume control unit 3732 sets the dialog volume to a value obtained by adding the relative level to a predetermined reference value, and sets the other channel volume to a predetermined reference value. Then, the volume control unit 3732 multiplies the signal value of the audio signal of the dialog dedicated channel by the amplification factor corresponding to the dialog volume, and multiplies the signal value of the other channel audio signal by the amplification factor corresponding to the other channel volume. The volume control unit 3732 reproduces the sound of each channel by outputting the sound signal of each channel whose volume has been controlled to the loudspeaker unit 33.

  When a plurality of dialog dedicated channels are detected, the dialog dedicated channel for controlling the dialog volume may be designated by the operation signal. In that case, the volume control unit 3732 determines the dialog volume for the designated dialog-dedicated channel, and sets the other-channel volume as the dialog volume of the other dialog-dedicated channels.

In the present embodiment, the dialog detection unit 3762 of the dialog processing unit 376 determines that there is dialog audio, and the relative level of the dialog dedicated channel is the audio control data input from the audio setting unit 3764 of the dialog processing unit 376. May be directed. In that case, the volume control unit 3732 uses the relative level specified by the audio control data when determining the dialog volume and the other channel volume. When the user setting is instructed by the voice control data, the volume control unit 3732 uses the relative level specified by the operation signal input from the input unit 34 to determine the dialog volume and the other channel volume. When the relative level is not indicated by the input operation signal, the volume control unit 3732 determines the default relative level indicated by the dialog control information included in the additional information of the audio data, and the dialog volume and the other channel volume. Used when.
Regardless of the presence / absence of the dialog sound, the volume control unit 3732 controls the volume of all channels simultaneously based on the common channel volume indicated by the operation signal. When it is determined that there is no dialog sound, the volume control unit 3732 does not control the volume based on the relative level.

  The notification processing unit 374 causes the display unit 35 to display notification information related to the dialog sound when the dialog sound is detected by the dialog detection unit 3762. For example, the notification processing unit 374 reads the notification screen data stored in advance in the storage unit 36 and outputs the read notification screen data to the display composition unit 3752 of the video processing unit 375, thereby indicating the notification screen data. A notification screen is displayed on the display unit 35. The notification screen may include, for example, provision of dialog sound in a broadcast program, guidance on an operation method related to adjustment of dialog volume, and explanation about dialog sound as notification information regarding dialog sound. When the attribute information indicating the attribute of the program is input from the dialog detection unit 3762, the notification processing unit 374 displays the notification information associated with the attribute information or the notification information added with the attribute information on the display unit 35. You may let them. The attribute information may include, for example, the dialog voice type and the dialog voice language as the dialog voice attributes. When the dialog control information is added to the audio data from the separation unit 372, the attribute information may be extracted from the dialog control information by the dialog detection unit 3762.

The video processing unit 375 acquires display data indicating video to be displayed on the display unit 35. The video processing unit 375 includes a video decoding unit 3751 and a display synthesis unit 3752.
The video decoding unit 3751 extracts video data from the video data stream input from the separation unit 372. The video decoding unit 3751 decodes the extracted video data using a predetermined video decoding method, and generates decoded video data. The video decoding method is a video decoding method corresponding to the video encoding method used for generating the video data. The decoded video data is data indicating signal values forming a video (frame image) at each time. The video decoding unit 3751 outputs the decoded video data to the display synthesis unit 3752.
The display synthesis unit 3752 synthesizes the video indicated by the video data input from the video decoding unit 3751 and the screen indicated by the notification screen data or other screen data input from the notification processing unit 374. The display synthesis unit 3752 outputs display data indicating the synthesized video obtained by synthesis to the display unit 35.

  The dialog processing unit 376 detects a dialog sound from the audio data input from the separation unit 372 and performs a process for reproducing the detected dialog sound. The dialog processing unit 376 includes a program processing unit 3761, a dialog detection unit 3762, a channel state acquisition unit 3763, and an audio setting unit 3764.

The program processing unit 3761 acquires the MH-AIT from the separation unit 372, acquires an application based on the acquired MH-AIT, and controls processing instructed by an instruction described in the acquired application. In the following description, performing a process designated by an instruction described in an application is referred to as “execution of the application”.
The program processing unit 3761 generates an application request signal for acquiring an application designated by the MH-AIT. The program processing unit 3761 transmits the application request signal generated to the communication device 20 represented by the URL indicated by the MH-AIT as acquisition destination information via the communication unit 32. As a response, the program processing unit 3761 receives an application from the communication device 20 via the communication unit 32. The program processing unit 3761 starts execution of the received application based on the MH-AIT and stops the execution.

  For example, the program processing unit 3761 extracts program data constituting a part of a broadcast program from the application. In addition, the program processing unit 3761 may acquire program data from the acquisition destination designated by the application via the communication unit 32. The program processing unit 3761 outputs the acquired program data to the separation unit 372. The separation unit 372 separates audio data and video data from the program data input from the program processing unit 3761, outputs the separated audio data to the audio processing unit 373, and outputs the separated video data to the video processing unit 375. . Therefore, the content designated by the application is presented. The audio data may include audio data of one or more channels of dialog audio.

  The dialog detection unit 3762 detects the presence or absence of dialog sound based on the MPT input from the separation unit 372. For example, when the most significant bit in the component type of the MH-audio component descriptor is “1” for the audio data indicated by MPT, the dialog detection unit 3762 determines that there is dialog control information. At this time, the dialog detector 3762 determines that the audio data includes audio data related to the dialog audio. When the most significant bit in the component type of the MH-voice component descriptor is “1”, the dialog detection unit 3762 determines that there is dialog control information. At this time, the dialog detection unit 3762 determines that the audio data input from the separation unit 372 includes audio data related to the dialog audio. The dialog detection unit 3762 outputs the dialog control information added to the audio data to the volume control unit 3732 and the notification processing unit 374.

  The channel state acquisition unit 3763 acquires channel state information at that time. Specifically, the channel state acquisition unit 3763 reads the device ID stored in advance from the storage unit 36. An operation signal indicating a broadcast channel is input from the input unit 34 to the channel state acquisition unit 3763. An operation signal indicating a dialog-dedicated channel is input from the input unit 34 to the channel state acquisition unit 3763. When a plurality of dialog dedicated channels are provided at a time, an operation signal indicating any one of the dialog dedicated channels may be input. The channel state acquisition unit 3763 extracts channel selection information for identifying the program received at that time from the MH-EIT input from the input unit 34. The channel state acquisition unit 3763 generates channel state information including a device ID, broadcast channel information indicating a broadcast channel that receives a broadcast wave, audio channel information indicating a dialog dedicated channel to be selected, and channel selection information. The channel state acquisition unit 3763 outputs the generated channel state information to the audio setting unit 3764.

The voice setting unit 3764 transmits a voice control data request signal including the channel state information input from the channel state acquisition unit 3763 to the communication device 20 via the communication unit 32. The timing at which the voice setting unit 3764 transmits the voice control data request signal is, for example, an initial timing such as immediately after activation upon power-on or immediately after reception of an application. In addition, the timing at which the audio setting unit 3764 transmits the audio control data request signal is switched to a program including a part or all of the components of the channel state information, for example, audio channel information, dialog sound due to time lapse or channel switching. It is time to be.
The voice setting unit 3764 receives voice control data from the communication device 20 via the communication unit 32. The voice setting unit 3764 sets the received voice control data in the volume control unit 3732. The volume control unit 3732 uses the relative level indicated by the set audio control data to determine the dialog volume and the other channel volume. The timing when the voice setting unit 3764 receives the voice control data is immediately after the voice control data request signal is transmitted and immediately after the event is switched.

(Notification screen)
Next, an example of a notification screen will be described.
FIG. 8 is a diagram illustrating an example of a notification screen. In the example illustrated in FIG. 8, the notification screen is displayed in an area within a predetermined range from the lower left corner of the display area of the display unit 35. By being displayed in this area, visual recognition by the user is not hindered. The message Mg2 included in the notification screen includes a message “Dialog-compatible broadcast”, a circle surrounded by characters of “yellow”, and a message “detail” adjacent to the circle. The message “Dialog-compatible broadcast” is a message indicating that dialog sound is provided in the broadcast program. Therefore, the message “details” adjacent to the circle indicates that more detailed information regarding the provided dialog sound is displayed when the yellow button Ybt included in the remote controller Rc (FIG. 9) is pressed. When the yellow button Ybt is pressed by a user operation, the remote controller Rc transmits an operation signal indicating display of detailed information to the input unit 34 of the receiving device 30. In response to the input of the operation signal from the input unit 34, the notification processing unit 374 outputs detailed information regarding the dialog sound to the display synthesis unit 3752, thereby causing the display unit 35 to display the detailed information.

  The detailed information may be information stored in advance in the storage unit 36 or information extracted from the dialog control information by the dialog detection unit 3762. The information stored in advance is, for example, instruction manual data (electronic manual) indicating how to handle the receiving device 30. Thereby, since the user is guided to the instruction manual data, the user can easily access more detailed information about the handling of the receiving device 30. The information extracted from the dialog control information is, for example, dialog commentary information indicating commentary on the dialog sound. As a result, more detailed explanations about dialog sounds produced by program producers and broadcasters are transmitted. The dialog commentary information may include a description according to the configuration of the broadcast program and the position of the dialog sound. For example, in a sports program, when commentary sounds from multiple commentators are included as dialog sounds, the biography of each commentator, the main commentary player, the team commentary, and the competition based on each player and team position And an explanation of the dialog voice switching method and the like.

  The remote controller Rc includes a dialog button Dbt for adjusting the dialog volume. Dialog button Dbt is provided separately from volume button Vbt for adjusting the common channel volume. In the example shown in FIG. 9, the characters “dialog” and “VOL” are attached near the dialog button Dbt and the volume button Vbt, respectively. When the dialog button Dbt is pressed by a user operation, the remote controller Rc transmits an operation signal indicating a relative level to the input unit 34 of the receiving device 30 by radio (for example, infrared rays). The volume control unit 3732 controls the dialog volume based on the relative level indicated by the operation signal from the input unit 34 as described above. In this embodiment, “pressing” means that a physical button is actually pressed, and that a button displayed on the screen or its display area is indicated by an operation signal.

  The audio switching button Asw provided in the remote controller Rc is a button for instructing to switch the audio to be reproduced (audio to be reproduced) when pressed. The voice switching button Asw functions when there are a plurality of playback target voices. In the present embodiment, for example, audio data of dialog sound and normal broadcast audio data are transmitted in parallel, and audio data of a plurality of dialog sounds are transmitted in parallel. Each time the voice switching button Asw is pressed, the voice processing unit 373 cyclically selects a voice obtained by superimposing any one of a plurality of transmission voices or a combination thereof as a playback target voice.

Next, information processing according to the present embodiment will be described.
FIG. 10 is a sequence diagram showing information processing according to the present embodiment.
(Step S <b> 101) The program acquisition unit 241 of the communication device 20 reads an application specified by the application request signal received from the reception device 30 from the storage unit 23, and transmits the read application to the reception device 30. Thereafter, the process proceeds to step S102.
(Step S <b> 102) The program processing unit 3761 of the reception device 30 starts (starts) execution of the application received from the communication device 20 based on the MH-AIT input from the separation unit 372. Thereafter, the process proceeds to step S103.

(Step S103) The channel state acquisition unit 3763 of the receiving device 30 acquires the device ID, broadcast channel information, audio channel information, and channel selection information (EventID, ServiceID) of the device itself, and obtains channel state information including these pieces of information. Configure. The voice setting unit 3764 transmits a voice control data request signal with channel state information added thereto to the communication device 20. Thereafter, the process proceeds to step S104. Note that the processing in step S103 is specified by a get command, for example.

(Step S <b> 104) The channel state acquisition unit 243 of the communication device 20 extracts channel state information from the voice control data request signal received from the receiving device 30. When the audio channel information included in the channel state information indicates a dialog dedicated channel, the audio control data setting unit 244 determines the attribute of the program indicated by the channel selection information with reference to the MH-EIT. The audio control data setting unit 244 determines a relative level corresponding to the dialog dedicated channel with reference to a relative level table corresponding to the attribute of the determined program. The audio control data setting unit 244 generates audio control data indicating a relative level determined for the dialog dedicated channel, and transmits the generated audio control data to the receiving device 30. Thereafter, the process proceeds to step S105. The process of step S105 is specified by a set command, for example.

(Step S <b> 105) The sound setting unit 3764 of the receiving device 30 sets the sound control data received from the communication device 20 in the volume control unit 3732. The volume control unit 3732 determines the dialog volume and the other channel volume based on the relative level specified by the set audio control data and the common channel volume determined up to that point. Thereafter, the process proceeds to step S113.

(Step S113) When a part or all of the acquired channel state information is changed, the channel state acquisition unit 3763 of the receiving device 30 configures channel state information including the changed channel state information. The voice setting unit 3764 transmits a voice control data request signal to which the configured channel state information is added to the communication device 20. Then, the process of step S104 and the process of step S105 are performed. Therefore, the audio setting unit 3764 of the receiving device 30 sets the audio control data indicating the relative level according to the changed channel state information in the volume control unit 3732. Thereafter, the process proceeds to step S123.

(Step S123) In the storage unit 23 of the communication device 20, data including at least the relative level table is updated by switching events. Thereafter, the process proceeds to step S124.
(Step S124) The voice control data setting unit 244 of the communication device 20 refers to the updated relative level table, and sets the dialog dedicated channel included in the latest channel state information acquired by the channel state acquisition unit 243 up to that point. Define the corresponding relative level. The audio control data setting unit 244 transmits audio control data indicating the relative level related to the defined dialog dedicated channel to the receiving device 30. Thereafter, the process proceeds to step S105.

  Thereafter, the processes of steps S113, S104, and S105 and the processes of steps S123, S124, and S105 are repeated. In general, the processes in steps S113, S104, and S105 and the processes in steps S123, S124, and S105 are not necessarily performed sequentially. For example, the processes in steps S123, S124, and S105 may precede the processes in steps S113, S104, and S105. In addition, after the processes of steps S113, S104, and S105 are repeated a plurality of times, the processes of steps S123, S124, and S105 are performed, or after the processes of steps S123, S124, and S105 are repeated a plurality of times. The processing of S113, S104, and S105 may be performed.

  The channel state information generated and transmitted in step S113 may omit other elements as long as the difference from the channel state information acquired immediately before and the device ID are included.

As described above, the receiving device 30 according to the present embodiment acquires channel state information indicating a selection state of a dialog-dedicated channel that provides a dialog sound among a plurality of channels provided in a broadcast program. A channel state acquisition unit 3763 is provided. The receiving device 30 also includes an audio processing unit 373 that controls the volume of the dialog dedicated channel and the volume of other channels of the plurality of channels. In addition, the reception device 30 requests the communication device 20 for volume control data of the dialog dedicated channel indicated by the channel state information, and determines the volume of the dialog dedicated channel based on the audio control data received from the communication device 20. 3764 is provided.
With this configuration, the communication device 20 specifies a volume corresponding to the dialog dedicated channel selected during reception of the broadcast program. This eliminates the need for the user to adjust the volume of the dialog sound. In addition, a volume in accordance with the intention of the broadcaster or the program producer is set as the volume of the dialog sound. Therefore, dialog voice is provided more usefully.

  The channel state information indicates channel selection information indicating the broadcast program being received. With this configuration, the volume of the dialog sound corresponding to the broadcast program being viewed is set.

  Also, the voice setting unit 3764 requests voice control data when the channel state information is changed. With this configuration, the volume of the dialog sound adapted to the change of the channel state is set.

  The voice setting unit 3764 receives the updated dialog voice control data from the communication device 20 and sets the volume of the dialog-dedicated channel based on the control data. With this configuration, the dialog sound volume updated in accordance with the intention of the broadcaster or the program producer is set regardless of whether or not the channel state has changed.

  In addition, the receiving device 30 includes a notification processing unit 374 that causes the notification unit to notify the provision of the dialog sound when the dialog sound is detected in the received broadcast program. With this configuration, the user can easily recognize that the dialog sound is provided in the received broadcast program.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. About the same structure as 1st Embodiment, the same code | symbol is attached | subjected and the description is used.
FIG. 11 is a schematic block diagram of the broadcast system 1a according to the present embodiment.
The broadcasting system 1a is an IPTV (Internet Protocol Television) system including a communication device 20a and a receiving device 30a. In the broadcasting system 1a, there can generally be a plurality of communication devices 20a and a plurality of receiving devices 30a, but the number of communication devices 20a and the number of receiving devices 30a are each one.

  The communication transmission path 50a bi-directionally transmits various data between the communication device 20a and the receiving device 30a, and simultaneously transmits a broadcast signal from the communication device 20a to the receiving device 30a unilaterally. It is a transmission line. The communication transmission path 50a includes the Internet using a predetermined communication protocol (for example, TCP / IP: Transmission Control Protocol / Internet Protocol) in data transmission.

The communication device 20a includes a data input unit 21, a communication unit 22, a storage unit 23, and a control unit 24 of the communication device 20 (FIG. 5), a program data acquisition unit 11 and a control data acquisition unit 12 of the transmission device 10 (FIG. 4). , The multiplexer 13 and the modulator 14. The communication unit 22 transmits the broadcast signal input from the modulation unit 14 to the receiving device 30 via the communication transmission path 50a.
The receiving device 30a includes a communication unit 32, a loudspeaker unit 33, an input unit 34, a display unit 35, a storage unit 36, and a control unit 37. That is, in the receiving device 30a, the configuration corresponding to the broadcast receiving unit 31 in the receiving device 30 is omitted. The communication unit 32 receives a broadcast signal from the communication device 20a via the communication transmission path 50a, and outputs the received broadcast signal to the demodulation unit 371.

  With this configuration, even when a broadcast program is provided via a communication network without using broadcast waves, the volume corresponding to the dialog-dedicated channel selected during reception of the broadcast program is designated from the communication device 20. . In addition, a volume in accordance with the intention of the broadcaster or the program producer is set as the volume of the dialog sound.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope indicated in the claims, and the technical configurations disclosed in different embodiments are appropriately combined. The obtained embodiment is also included in the technical scope of the present invention.
Each component of the present invention can be arbitrarily selected, and an invention having a selected configuration is also included in the present invention.

In the embodiment described above, the case where the audio mode is mainly 5.1ch surround has been described as an example, but other audio modes related to multi-channel audio may be used. The audio mode may be, for example, 7.1ch surround or 22.2ch surround. In addition, the above-described embodiment downmixes surround sound of multi-channels such as 5.1ch, 7.1ch, 22.2ch, etc. to an audio mode with fewer channels (for example, 2.0ch stereo, 2.1ch stereo). You may implement | achieve as a reproduction | regeneration system provided with the means. Also for such a playback system, it is possible to make the user recognize the existence of a dialog voice whose volume can be adjusted independently, and to promote the use thereof.
Further, if various data can be transmitted / received to / from the receiving devices 30 and 30a, any of the loudspeaker 33, the input unit 34, and the display unit 35 or a combination thereof is omitted from the main body of the receiving devices 30 and 30a. , May be configured as a separate body.

  In the above-described embodiment, the MMT / TLV media transport method is used as the multiplexing / transmission method, but other multiplexing / transmission methods may be used. For example, a method defined in the MPEG-2 system may be used.

  Moreover, you may make it implement | achieve a part of communication apparatuses 20 and 20a and the receivers 30 and 30a in embodiment mentioned above with a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed. Here, the “computer system” is a computer system built in the recognition data transmission apparatus, and includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In this case, a volatile memory inside a computer system that serves as a server or a client may be included that holds a program for a certain period of time. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

In addition, this invention can be implemented also in the following aspect.
(1) A channel state acquisition unit that acquires channel state information indicating a selection state of a dialog-dedicated channel that provides dialog sound among a plurality of channels provided in a broadcast program, and a volume of the dialog-dedicated channel; A voice processing unit for controlling the volume of each of the other channels of the plurality of channels, and requesting control data of the volume of the dialog-dedicated channel indicated by the channel state information to the communication device, and the control data received from the communication device And a voice setting unit for determining a volume of the dialog-dedicated channel on the basis thereof.

(2) The receiving apparatus according to (1), wherein the channel state information includes channel selection information indicating a broadcast program being received.

(3) The receiving device according to (1) or (2), wherein the audio setting unit requests the control data from the communication device when the channel state information is changed.

(4) The voice setting unit receives the updated dialog voice control data from the communication device, and sets the volume of the dialog-dedicated channel based on the control data. Receiving device.

(5) The receiving device according to any one of (1) to (4), further including a notification processing unit that notifies the notification unit of provision of the dialog sound when the dialog sound is detected in the broadcast program being received .

(6) A broadcasting system including a communication device and a receiving device, wherein the communication device indicates a selection state of a dialog-dedicated channel that provides a dialog sound among a plurality of channels provided in a broadcast program. Channel state information is received from the receiving device, volume control data for the dialog-dedicated channel determined based on the channel state information is transmitted to the receiving device, and the receiving device acquires the channel state information. An acquisition unit; a volume of the dialog-dedicated channel; an audio processing unit that controls the volume of other channels of the plurality of channels; and a volume control data of the dialog-dedicated channel indicated by the channel state information Based on the control data received from the communication device. Broadcasting system and a voice setting section to determine the volume of the dialog dedicated channel Te.

(7) In the reception method in the receiving apparatus, a channel state acquisition step of acquiring channel state information indicating a selection state of a dialog-dedicated channel that provides a dialog sound among a plurality of channels provided in a broadcast program; Requesting the communication device for volume control data of the dialog-dedicated channel indicated by the channel state information, an audio processing step for controlling the volume of the dialog-dedicated channel, the volume of the other channels of the plurality of channels, and the communication And a voice setting step for determining a volume of the dialog-dedicated channel based on control data received from the apparatus.

(8) A channel state acquisition step of acquiring channel state information indicating a selection state of a dialog-dedicated channel that provides dialog audio among a plurality of channels of audio provided in a broadcast program to the computer of the receiving apparatus; Requesting the communication device for volume control data of the dedicated channel of the dialog indicated by the channel status information, an audio processing step for controlling the volume of the dedicated channel, the volume of the other channels of the plurality of channels, and the communication device; And a voice setting step for determining the volume of the dialog dedicated channel based on the control data received from the program.

  DESCRIPTION OF SYMBOLS 1, 1a ... Broadcast system, 10 ... Transmission apparatus, 11 ... Program data acquisition part, 12 ... Control data acquisition part, 13 ... Multiplexing part, 14 ... Modulation part, 15 ... Transmission part, 20, 20a ... Communication apparatus, 21 ... Data input unit, 22 ... Communication unit, 23 ... Storage unit, 24 ... Control unit, 241 ... Program acquisition unit, 242 ... Dialog setting unit, 243 ... Channel state acquisition unit, 244 ... Voice control data setting unit, 30, 30a DESCRIPTION OF SYMBOLS Receiving device 31 ... Broadcast receiving unit 32 ... Communication unit 33 ... Loudspeaker unit 34 ... Input unit 35 ... Display unit 36 ... Storage unit 37 ... Control unit 371 ... Demodulation unit 372 ... Separation unit 373 ... Audio processing unit, 3731 ... Audio decoding unit, 3732 ... Volume control unit, 374 ... Notification processing unit, 375 ... Video processing unit, 3751 ... Video decoding unit, 3752 ... Display composition unit, 376 ... Dialog processing unit, 37 1 ... program processing unit, 3762 ... dialog detecting unit, 3763 ... channel condition acquisition unit, 3764 ... audio setting unit, 40 ... broadcast transmission path, 41 ... broadcast satellite, 50, 50a ... communications channel

Claims (8)

A channel state acquisition unit that acquires channel state information indicating a selection state of a dialog-dedicated channel that provides a dialog sound among a plurality of channels provided in a broadcast program;
An audio processing unit for controlling the volume of the dialog-dedicated channel and the volume of other channels of the plurality of channels;
A voice setting unit that requests the communication device volume control data of the dialog-dedicated channel indicated by the channel state information, and determines the volume of the dialog-dedicated channel based on the control data received from the communication device;
A receiving device.   The receiving apparatus according to claim 1, wherein the channel state information includes channel selection information indicating a broadcast program being received.   The receiving device according to claim 1, wherein the audio setting unit requests the control data from the communication device when the channel state information is changed.   The said audio | voice setting part receives the control data of the said dialog audio | voice updated from the said communication apparatus, and sets the volume of the said channel only for a dialog based on the said control data. The receiving device described in 1. A notification processing unit for notifying the notification unit of the provision of the dialog voice when the dialog voice is detected in the received broadcast program;
The receiving device according to any one of claims 1 to 4, further comprising: A broadcasting system comprising a communication device and a receiving device,
The communication device
Receiving from the receiving device channel state information indicating a selection state of a dialog-dedicated channel that provides dialog sound among a plurality of channels provided in a broadcast program;
Sending volume control data of the dialog-dedicated channel determined based on the channel state information to the receiving device;
The receiving device is:
A channel state acquisition unit for acquiring the channel state information;
An audio processing unit for controlling the volume of the dialog-dedicated channel and the volume of other channels of the plurality of channels;
A broadcasting system comprising: an audio setting unit that requests the communication device for volume control data of the dialog-dedicated channel indicated by the channel state information and determines the volume of the dialog-dedicated channel based on the control data received from the communication device . In the receiving method in the receiving device,
A channel state acquisition step of acquiring channel state information indicating a selection state of a dialog-dedicated channel that provides a dialog sound among a plurality of channels provided in a broadcast program;
An audio processing step for controlling the volume of the dialog-dedicated channel and the volume of other channels of the plurality of channels;
Requesting the communication device volume control data of the dialog-dedicated channel indicated by the channel state information, and setting the volume of the dialog-dedicated channel based on the control data received from the communication device; and
Receiving method. In the computer of the receiving device,
A channel state acquisition step of acquiring channel state information indicating a selection state of a dialog-dedicated channel that provides a dialog sound among a plurality of channels provided in a broadcast program;
An audio processing step for controlling the volume of the dialog-dedicated channel and the volume of other channels of the plurality of channels;
Requesting the communication device volume control data of the dialog-dedicated channel indicated by the channel state information, and setting the volume of the dialog-dedicated channel based on the control data received from the communication device; and
A program for running

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