JP2011091588A - Video recording device and method, and program - Google Patents

Abstract

A recording apparatus, a recording method, and a program for reliably detecting the period of a musical performance scene in content data are provided.
A receiving unit that receives first content data including a performance scene of music and first metadata including information related to the first content data, and detects caption data from the first metadata. Character information is extracted from the first database unit in which the subtitle detection unit 142 and second metadata including information related to a plurality of pieces of music are recorded, and the detected subtitle data is compared with the extracted character information. A first comparison unit 144; and a coincidence time detection unit 144 that detects a time coincident with character information in a performance scene of the music included in the first content data based on a comparison result in the first comparison unit. Is provided.
[Selection] Figure 3

Description

  The present invention relates to a recording apparatus, a recording method, and a program.

  Recording devices such as hard disk recorders and home servers receive television broadcast signals and record broadcast contents (contents). The TV broadcast signal includes various information (metadata) related to the broadcast content in addition to the broadcast content. Various pieces of information related to the broadcast content include metadata such as explanation of the broadcast content, broadcast time, and performers. The recording apparatus may make a recording reservation using metadata. Patent Document 1 discloses a technique for automatically detecting a meaningful scene change by detecting a change in subtitles in a video.

JP 2000-187904 A

  A TV broadcast viewer may want to save only the performance (including singing; the same shall apply hereinafter) scene of a music performer from a broadcast program. A conventional recording apparatus can detect, for example, a program in which a target singer appears from the performer information using metadata and record the entire detected program. However, the conventional recording device cannot extract the singing scene of the target singer from the program, and cannot record only that portion.

  In the technique of Patent Document 1, it is possible to detect a scene change by using subtitles, but it is impossible to detect a period of a singing scene from when to when a target singer sings. That is, in the technique of Patent Document 1, it is unclear whether the singer's singing has started or whether the singer's singing has ended by switching the scene. It is not possible to detect whether the content is broadcast.

  Therefore, if the viewer of the television broadcast wants to save only the performance scene of the music performer from the broadcast program, it manually operates the recording start and end of the recording device while watching the screen on which the broadcast program is displayed. There must be.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is a new and improved technique capable of reliably detecting the period of a musical performance scene in content data. Another object is to provide a recording device, a recording method, and a program.

  In order to solve the above-described problem, according to an aspect of the present invention, a receiving unit that receives first content data including a performance scene of music and first metadata including information related to the first content data; A subtitle detection unit that detects subtitle data from the first metadata, and a subtitle detected by extracting character information from the first database unit in which the second metadata including information on a plurality of pieces of music is recorded Based on the comparison result in the first comparison unit that compares the data with the extracted character information and the first comparison unit, the character information in the performance scene of the music included in the first content data matches A recording device is provided that includes a coincidence time detection unit that detects time.

  An audio detection unit for detecting audio data for a certain period from the first content data so as to include the detected coincidence time, and a second database unit in which second content data including information on a plurality of music pieces is recorded Audio data is extracted from the first content data based on the comparison result in the second comparison unit and the second comparison unit that compares the audio data for a certain period with the extracted audio data You may further provide the music area detection part which detects the time slot | zone which corresponds to the audio | voice data extracted among the audio data of a fixed period.

  You may further provide the video recording part which records the 1st content data of a time slot | zone on a memory | storage part based on the detected time slot | zone.

  You may further provide the display control part which displays the list of music on a screen based on the detected time slot | zone and character information.

  You may further provide the display control part which displays performance time information on a screen based on the detected said coincidence time and character information.

  You may further provide the transmission part which transmits the said detected time slot | zone and character information outside.

  The first database unit or the second database unit may be connected via a network.

  In order to solve the above-described problem, according to another aspect of the present invention, the receiving unit includes a first meta data including first performance data including a performance scene of music and information regarding the first content data. A step of receiving data, a step of detecting subtitle data from the first metadata by the subtitle detection unit, and a first comparison unit storing the second metadata including information on a plurality of music pieces Extracting the character information from the database part of the first and comparing the detected subtitle data with the extracted character information, and the coincidence time detecting unit, based on the comparison result in the first comparing unit, There is provided a recording method including a step of detecting a time coincident with character information in a performance scene of music included in content data.

  A step in which the audio detection unit detects audio data for a certain period from the first content data so as to include the detected coincidence time; and a second content in which the second comparison unit includes information on a plurality of pieces of music. Extracting voice data from the second database part in which the data is recorded, comparing the audio data for a certain period with the extracted voice data, and the result of the comparison between the music section detection part and the second comparison part And detecting a time zone that matches the extracted audio data from the audio data of a certain period included in the first content data.

  In order to solve the above problem, according to another aspect of the present invention, first content data including a performance scene of music and first metadata including information on the first content data are received. Means for detecting subtitle data from the first metadata, extracting character information from the first database section in which the second metadata including information on a plurality of music is recorded, and detecting the subtitle data Computer as means for comparing with extracted character information, as means for detecting time matching character information among performance scenes of music included in first content data based on comparison result in first comparison unit A program for functioning the program is provided.

  Means for detecting audio data for a certain period from the first content data so as to include the detected coincidence time, and audio data from the second database section in which the second content data including information relating to a plurality of songs is recorded Means for extracting and comparing the audio data for a certain period and the extracted audio data, and extracting from the audio data for a certain period included in the first content data based on the comparison result in the second comparison unit The computer may further function as a means for detecting a time zone that matches the audio data.

  As described above, according to the present invention, it is possible to reliably detect the period of the musical performance scene in the content data.

1 is a block diagram illustrating a recording system according to a first embodiment of the present invention. It is a block diagram which shows the video recording apparatus which concerns on the same embodiment. It is a block diagram which shows the video recording apparatus which concerns on the same embodiment. 4 is a flowchart showing a recording operation of the recording apparatus according to the embodiment. It is explanatory drawing which shows the relationship between video recording data, audio data, and music data. It is explanatory drawing which shows the recording data on a time-axis, and the play list displayed on a screen. It is explanatory drawing which shows the video recording data on a time-axis, and the performance time information displayed on a screen. 1 is a block diagram illustrating a recording system according to a first embodiment of the present invention. It is a flowchart which shows operation | movement of the other video recording apparatus or information processing apparatus which concerns on the same embodiment.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

The description will be made in the following order.
1. 1. First embodiment Second embodiment

<1. First Embodiment>
[Configuration of this embodiment]
First, the configuration of a recording system according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing a recording system according to the first embodiment of the present invention.

  The recording system according to the present embodiment includes, for example, a plurality of recording devices 100, a server 20, and the like. In FIG. 1, only one recording device 100 is shown for explanation. The recording apparatus 100 and the server 20 are connected to each other via a network 10 such as the Internet.

  The recording device 100 receives a television broadcast signal wirelessly or by wire and records a broadcast program on a recording medium. A display 30 connected to the recording apparatus 100 displays broadcast programs, program information, playlists, and the like. The server 20 includes, for example, a database 22 and sends information related to music recorded in the database 22 to the recording device 100. The information related to the music recorded in the database 22 is, for example, character information such as a singer, song name, songwriter, composer, and lyrics, and voice data related to singing and playing. The database 22 is an example of a first database unit and a second database unit.

  Next, the configuration of the recording apparatus 100 according to the present embodiment will be described with reference to FIG. FIG. 2 is a block diagram showing the recording apparatus 100 according to the present embodiment.

  The recording apparatus 100 according to the present embodiment includes, for example, a CPU 102, a tuner 104, a decoder 106, an encoder 108, a communication control unit 112, a ROM 114, a display control unit 116, a RAM 118, a storage unit 120, and a database. Part 122 and the like.

  A CPU (Central Processing Unit) 102 is an arithmetic processing unit, a control unit, or the like, and executes a program recorded in a memory such as a ROM 114. The CPU 102 of the present embodiment includes, for example, a caption detection unit 142, a keyword comparison unit 144, a coincidence time recording unit 146, an audio detection unit 152, a music comparison unit 154, a music section recording unit 156, and the like which will be described later.

  The tuner 104 receives a television broadcast signal. Reception of the television broadcast signal may be either wireless or wired. The received television broadcast signal is sent to the decoder 106. The tuner 104 is an example of a receiving unit, and receives content data (first content data) and metadata about the content data (first metadata).

  The decoder 106 decodes the television broadcast signal. The decoded signal is sent to the encoder 108 and the display control unit 116. The encoder 108 encodes the decoded television broadcast signal, and sends the encoded signal to the storage unit 120 as video data. The encoder 108 corresponds to the recording unit 132 described later.

  The communication control unit 112 controls wired or wireless data transmission. The communication control unit 112 is connected to the network 10 such as the Internet and receives data from the database 22 from the server 20.

  A ROM (Read-Only Memory) 114 is a read-only memory, in which programs executed by the CPU 102 are recorded. The program recorded in the ROM 114 is read by the CPU 102.

  The display control unit 116 sends the decoded television broadcast signal to the display 30. In addition, the display control unit 116 generates a display signal for data relating to a playlist or the like created by the recording device 100, and sends the generated display signal to the display 30. Thereby, the display 30 can display a playlist or the like on the screen.

  A RAM (Random Access Memory) 118 temporarily stores television broadcast signals and temporarily records time information described later. The RAM 118 corresponds to a buffer unit 124 described later.

  The storage unit 120 stores broadcast program data as a recording target. The database unit 122 holds information related to music recorded in the database, for example, character information such as singer, song name, songwriter, composer, and lyrics, and voice data related to singing and playing. That is, the database unit holds content data (second content data) and metadata (second metadata). The database 22 is an example of a first database unit and a second database unit.

  In the example described above, the example in which the recording apparatus 100 is connected to the server 20 has been described. The database unit 122 accesses the database 22 and acquires the latest information. Note that the recording apparatus 100 may not use the database unit 122 but may use the database 22 of the server 20.

[Operation of this embodiment]
Next, the operation of the recording apparatus 100 according to the present embodiment will be described with reference to FIGS. 3 and 4. FIG. 3 is a block diagram showing the recording apparatus according to the present embodiment. FIG. 4 is a flowchart showing the recording operation of the recording apparatus according to the present embodiment.

  First, the user designates a target singer who wishes to record, a target song name, or a combination thereof in the recording apparatus 100 (step S101). The recording apparatus 100 extracts a program in which a target singer appears based on program information (metadata such as EPG) included in the broadcast (step S102). Then, the recording of the extracted program is reserved (step S103), and recording is started in accordance with the broadcast time (step S104). Note that the extraction and selection of programs are not limited to the case where the recording apparatus 100 performs based on the program information, and the user may directly specify a program to be recorded.

  When the recording is started, the broadcast content that is the target of recording, for example, data of a broadcast program (hereinafter also referred to as “recording data”) is input to the buffer unit 124 by the designation by the user. The recorded data includes content data and metadata including information related to the content data. Then, the recorded data is temporarily stored in the buffer unit 124 (step S105). Here, the broadcast program to be recorded is a program that the user wants to save music performance. The program may be a program of any genre regardless of the genre, such as a music program broadcast mainly on music and a documentary program related to the performer.

  Next, the caption detection unit 142 detects caption data from the recorded data stored in the buffer unit 124 (step S106). The caption data is data included in the metadata. The subtitle data is information about subtitles that expresses the audio broadcast in the program in characters, and is character information. For example, when a singer is singing in a program, the subtitle data includes lyrics. In addition, when a music title and a performer are introduced by a host or a narrator in a program, the subtitle data includes the music title and the performer.

  The detected caption data is sent to the keyword comparison unit 144. Further, the keyword comparison unit 144 is an example of a first comparison unit, and reads character information related to a singer name or a song name that the user wants to save from the database unit 122. The character information read from the database unit 122 includes a singer, a song name, a songwriter, a composer, and lyrics. The database uses what is recorded in the database unit 122 mounted in the recording apparatus 100, but even if it uses what is recorded in the database 22 in the server connected via the network. Good.

  The keyword comparison unit 144 compares the detected caption data with the character information read from the database unit 122 (step S107), and the time when the character information about the singer or music that the user wants to save matches. t0 is detected. The keyword comparison unit 144 is an example of a coincidence time detection unit. The detected coincidence time t0 is recorded in a memory such as the RAM 118 by the coincidence time recording unit 146 (step S108). Here, the time is, for example, the time of a broadcast program.

  FIG. 5 shows time t0 in the recording data. FIG. 5 is an explanatory diagram showing the relationship between recorded data, audio data, and song data. The recorded coincidence time t0 is the time when the intended singer or song singing scene exists, and is information that can be used as a guideline when the performance scene was broadcast in the program.

  Next, the audio detection unit 152 reads the audio data including the recorded matching time t0 from the buffer unit 124. Audio data is data included in content data. The audio data is information relating to sound broadcast in the program. The audio data is, for example, audio data of a singing part when a singer sings in a program, and audio data of a performance part when a performer is playing. The audio data is audio data related to a human voice when a music title and a performer are introduced by a host or narrator in a program.

  When audio data is read from the buffer unit 124, data having a certain length including the recorded matching time t0 is extracted. A certain length when data is extracted is a period starting from t1 (= t0−Δt1) and ending at t2 (= t0 + Δt2). Δt1 and Δt2 are determined depending on character information and the like at t0. For example, when reading audio data from the buffer unit 124, the audio detection unit 152 calculates time t1 (step S109) and time t2 (step S110). Then, the audio detection unit 152 detects audio data from time t1 to time t2 (step S111).

  For example, when the character information at t0 is part of the lyrics, Δt1 and Δt2 are determined according to the overall length of the lyrics and the position of the lyrics at the matching time t0. If it is found that the lyrics at the coincidence time t0 are located at the beginning of the entire lyrics, Δt1 is determined to be a relatively short time, and Δt2 is determined to be a relatively long time. In addition, when the character information at t0 is part of the voice of the presenter of the music introduction, depending on the time from the introduction of the music (match time t0) to the start of the music and the overall length of the lyrics, Δt1 and Δt2 are determined. Note that Δt1 and Δt2 are not limited to positive values, and may take negative values.

  Although the specific period during which the audio data is read from the buffer unit 124 varies depending on the music, it may be determined on the basis of the parameters regarding the relationship between the entire lyrics and the lyrics at the matching time t0. . When the audio detection unit 152 reads audio data having a certain length from the buffer unit 124, it is not necessary to read data for a strict period. FIG. 5 shows the start time t1 and end time t2 of the audio data. The start time t1 and the end time t2 are time zones in which the target singer or song singing scene is present, and are information that can be known as a guide during the broadcast time of the performance scene in the program. The start time t1 and end time t2 of the audio data can identify the place where the performance scene exists in the recorded data, but is not an accurate performance period, compared to the time t0 detected by the keyword comparison unit 144.

  The audio data detected by the audio detection unit 152 is sent to the music comparison unit 154. In addition, the music comparison unit 154 reads audio data related to the singer name or song name that the user wants to save from the database unit 122. The audio data read from the database unit 122 is audio data related to singing or playing. The music comparison unit 154 is an example of a second comparison unit, and compares the detected audio data with the audio data read from the database unit 122 (step S112). And the music comparison part 154 detects the time slot | zone when the audio | voice data regarding the singer or music etc. which the user wanted to preserve | save matches (step S113). The music comparison unit 154 is an example of a second comparison unit. The detected time zone is defined by a start time ts and an end time te, for example. The detected start time ts and end time te are recorded in a memory such as the RAM 118 by the music section recording unit 156. Here, the time is, for example, the time of a broadcast program.

  FIG. 5 shows times ts and te in the recording data. The recorded times ts and te are times indicating the time zone in which the intended singer or song singing scene exists, and are information that can be used to know when the performance scene was broadcast during the program. The music comparison unit 154 can detect the times ts and te both in the case where one piece of music is played through the program and in the case where only a part of one piece of music is played.

  The music start time ts and end time te detected by the music comparison unit 154 are recorded from the time t0 detected by the keyword comparison unit 144 and the start time t1 and end time t2 detected by the audio detection unit 152. The place where the performance scene exists in the data can be specified. In this way, by specifying performance scenes in stages by keyword comparison, audio detection, and music comparison, performance in recorded data can be performed more quickly and accurately than when using only audio data to specify performance scenes. The start time and end time of the scene can be specified.

  Then, by using the times ts and te recorded by the music section recording unit 156, video data and audio data related to the singer or music that the user wants to save can be extracted from the recorded data. Then, the recording unit 132 records the recording data in the time zone of times ts and te in the storage unit 120. As a result, for example, the recording apparatus 100 can record only the target performance scene as song data without performing the recording start and recording end operations while watching the screen (step S114).

  The above-described scene detection operation in steps S106 to S112 in FIG. 4 is performed simultaneously with the reception of the broadcast program. Thereby, in this embodiment, only the music data that can be specified by the start time ts and the end time te of the music can be recorded in the storage unit 120. Since only the target performance scene can be recorded, the final recording capacity can be reduced. The present invention is not limited to the case where the scene detection operation is performed simultaneously with the broadcast program. For example, after the entire program is recorded, the performance scene may be extracted by performing the scene detection operation in steps S106 to S112 in FIG.

[Usage example of time ts, te]
Next, a usage example of the times ts and te recorded by the music section recording unit 156 will be described. Although the example which records only the target performance scene which can be specified by the start time ts of music and the end time te was demonstrated above, the usage example of time ts, te is not limited to this example.

  For example, in the recording of a program in the recording apparatus 100, the entire program may be recorded in the storage unit 120, and a plurality of songs included in one broadcast program 160, such as a song 162, are displayed on a screen 182 as shown in FIG. 164 may be displayed in a playlist format. FIG. 6 is an explanatory diagram showing recorded data on the time axis and a playlist displayed on the screen. The playlist is created by the recording device 100 using the time ts, te recorded by the song section recording unit 156 and character information such as a singer name or a song name.

  In the example shown in FIG. 6, the playlist displayed on the screen 182 displays a list of singer names, song names, and other information related to songs. The play list may display the start time ts and end time te of the performance scene. The user can quickly display the music to be viewed by selecting the music displayed on the screen 182 using a remote controller or the like. The playlist may display a plurality of songs of one program on one screen, or may display a plurality of songs of a plurality of programs on one screen.

  As shown in FIG. 8, the recording system according to the present embodiment includes a recording device 200 and an information processing device 300 in addition to the recording device 100 described above, and the recording device 100 stores scene time information in the recording device 200. Or may be transmitted to the information processing apparatus 300 or the like. FIG. 8 is a block diagram showing a recording system according to the first embodiment of the present invention.

  The recording device 100 is connected to the recording device 200, the information processing device 300, or the like by wire or wireless. The recording device 200 is a hard disk recorder, a home server, or the like, similar to the recording device 100. The information processing apparatus 300 is a personal computer or the like. The scene time information transmitted from the recording device 100 is the times ts and te recorded by the music section recording unit 156 described above.

  The recording device 200 or the information processing device 300 can extract the performance scene from the recording data that it has by receiving the scene time information. In addition, a playlist can be displayed on the display of the recording device 200 or the information processing device 300 to display a list of songs.

  FIG. 9 is a flowchart showing the operation of another recording apparatus or information processing apparatus according to this embodiment. The recording apparatus 200 and the information processing apparatus 300 other than the recording apparatus 100 acquire scene time information, that is, times ts and te from the recording apparatus 100 (step S201). And the acquired time ts and te are recorded on a memory | storage part (step S202). Thereby, the recording device 200 and the information processing device 300 hold the time zone of the scene where the music is played in the program without the recording device 100 performing the scene detection operation performed in steps S106 to S112 in FIG. it can.

  If the recording device 200 or the information processing device 300 has recorded data of a broadcast program, only the performance scene can be extracted as song data from the recorded data (step S203). If a portion other than the performance scene is deleted from the storage unit after extraction, the recording capacity can be reduced. Further, the recording device 200 and the information processing device 300 may create a playlist using the time ts, te recorded by the music section recording unit 156 and character information such as a singer name or a song name (step S204). ). At this time, by classifying the singer or the music piece according to the genre, the user's preference, etc., it is possible to create a playlist that collects the content data extracted from the television broadcast. The play list may display the start time ts and end time te of the performance scene.

  According to the first embodiment of the present invention, the time zone of the performance scene in the content data can be specified simply and reliably. Conventionally, scene switching can be detected, but a user's intended singer or musical performance scene cannot be detected. On the other hand, according to this embodiment, when the user designates a target singer or song, the time zone of the performance scene of the designated target singer or song can be detected. Moreover, only the performance scene of a singer or music can be recorded without a user's manual operation. Furthermore, recording capacity can be reduced by recording only the target scene. In addition, it is possible to create a playlist in which target singers or music pieces are collected.

<2. Second Embodiment>
Next, a recording system and a recording apparatus according to the second embodiment of the present invention will be described.
FIG. 7 is an explanatory diagram showing recorded data on the time axis and performance time information displayed on the screen. In the first embodiment described above, performance scenes are specified step by step by keyword comparison, audio detection, and music comparison, and the start time and end time of the performance scene in the recorded data are specified.

  In the present embodiment, the performance scene in the recorded data is simply specified only by keyword comparison.

  That is, as in the first embodiment, the caption detection unit 142 detects caption data from the recorded data stored in the buffer unit 124. The detected caption data is sent to the keyword comparison unit 144. In the keyword comparison unit 144, character information related to a singer name or a song name that the user wants to save is read from the database unit 122. The keyword comparison unit 144 compares the detected caption data with the character information read out from the database unit 122, and detects the time t0 when the character information about the singer or music that the user wants to save matches. . The detected coincidence time t0 is recorded in a memory such as the RAM 118 by the coincidence time recording unit 146.

  The operations related to audio detection and music comparison described in the first embodiment are not performed in the second embodiment.

  The coincidence time t0 recorded by the above operation is the time at which the intended singer or song singing scene exists, and is information that can be known as a guide when the performance scene was broadcast during the program. Using this time information, the time of the target singing scene is provided to the user.

  As shown in FIG. 7, time information t01 and t02 of a plurality of songs included in one broadcast program 160 may be displayed in a list on the screen 184 as performance time information. The performance time information is created by the recording device 100 using the time t01, t02, etc. recorded by the coincidence time recording unit 146 and character information such as a singer name or a song name.

  In the example shown in FIG. 7, the performance time information displayed on the screen 184 displays a singer name, a song name, other information related to music, and a time t0 including a performance scene. The user can quickly display the music that the user wants to view by selecting the music displayed on the screen 184 using a remote controller or the like. As the performance time information, a plurality of music pieces of one program may be displayed on one screen, or a plurality of music pieces of a plurality of programs may be displayed on one screen.

  According to the second embodiment of the present invention, it is possible to simply specify the time of the performance scene in the content data. Conventionally, scene switching can be detected, but a user's intended singer or musical performance scene cannot be detected. On the other hand, according to this embodiment, when the user designates a target singer or music, the time of the performance scene of the designated target singer or music can be detected.

  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention pertains can come up with various changes or modifications within the scope of the technical idea described in the claims. Of course, it is understood that these also belong to the technical scope of the present invention.

10 Network 20 Server 22 Database 30 Display 100, 200 Recording Device 102 CPU
104 Tuner 106 Decoder 108 Encoder 112 Communication Control Unit 114 ROM
116 Display control unit 118 RAM
DESCRIPTION OF SYMBOLS 120 Storage part 122 Database part 124 Buffer part 132 Recording part 142 Subtitle detection part 144 Keyword comparison part 146 Match time recording part 152 Audio detection part 154 Music comparison part 156 Music section recording part 300 Information processing apparatus

Claims (11)

A receiving unit that receives first content data including a performance scene of the music, and first metadata including information on the first content data;
A caption detection unit for detecting caption data from the first metadata;
A first comparison in which character information is extracted from a first database unit in which second metadata including information on a plurality of music pieces is recorded, and the detected caption data is compared with the extracted character information. And
Based on the comparison result in the first comparison unit, a coincidence time detection unit that detects a time coincident with the character information in the performance scene of the music included in the first content data;
A recording apparatus comprising: An audio detection unit for detecting audio data for a certain period from the first content data so as to include the detected matching time;
A second comparison in which audio data is extracted from a second database section in which second content data including information related to a plurality of songs is recorded, and the audio data for a certain period is compared with the extracted audio data And
A music section detection unit that detects a time zone that matches the extracted audio data among the audio data of the certain period included in the first content data based on the comparison result in the second comparison unit; ,
The recording apparatus according to claim 1, further comprising:   The recording apparatus according to claim 2, further comprising a recording unit that records the first content data of the time period in a storage unit based on the detected time period.   The recording apparatus according to claim 2, further comprising a display control unit that displays a list of music pieces on a screen based on the detected time zone and the character information.   The recording apparatus according to claim 1, further comprising a display control unit that displays performance time information on a screen based on the detected coincidence time and the character information.   The recording apparatus according to claim 1, further comprising: a transmission unit configured to transmit the detected time zone and the character information to the outside.   The recording apparatus according to claim 1, wherein the first database unit or the second database unit is connected via a network. A receiving unit receiving first content data including a performance scene of the music and first metadata including information on the first content data;
A subtitle detection unit detecting subtitle data from the first metadata;
The first comparison unit extracts character information from the first database unit in which the second metadata including information on a plurality of songs is recorded, and the detected caption data and the extracted character information A step of comparing
A step of detecting a time that matches the character information in the performance scene of the music included in the first content data based on a comparison result in the first comparison unit;
A recording method comprising An audio detecting unit detecting audio data for a certain period from the first content data so as to include the detected matching time;
The second comparison unit extracts audio data from the second database unit in which the second content data including information on a plurality of pieces of music is recorded, and the audio data for the certain period and the extracted audio data A step of comparing
The music section detection unit detects a time zone that matches the extracted audio data from the audio data of the certain period included in the first content data based on the comparison result in the second comparison unit. And steps to
The recording method according to claim 8, further comprising: Means for receiving first content data including a performance scene of music and first metadata including information on the first content data;
Means for detecting caption data from the first metadata;
Means for extracting character information from a first database part in which second metadata including information relating to a plurality of songs is recorded, and comparing the detected subtitle data with the extracted character information;
Means for detecting a time coincident with the character information in the performance scene of the music included in the first content data based on a comparison result in the first comparison unit;
As a program to make the computer function. Means for detecting audio data for a certain period from the first content data so as to include the detected matching time;
Means for extracting audio data from a second database unit in which second content data including information relating to a plurality of music pieces is recorded, and comparing the audio data of the certain period with the extracted audio data;
Means for detecting a time zone that matches the extracted audio data out of the audio data of the certain period included in the first content data based on a comparison result in the second comparison unit;
The program according to claim 10 for causing a computer to further function as:

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