KR100880977B1 - Audio processing method and device of a mobile terminal - Google Patents

Abstract

According to an aspect of the present invention, there is provided an audio processing apparatus of a mobile terminal, comprising: a touch pad unit including at least one divided area, and a touch pad input of a first area among the divided areas while an audio file is played in a mix mode; When is generated, the playback direction and the playback speed of the audio file to be reproduced are adjusted according to the progress direction and the input speed of the touch pad input generated in the first region, respectively, and the second region of the divided region is input. The controller is configured to change a preset sound effect according to at least one of a position, a direction, and a speed of the touch pad input generated in the second area, and to control the changed sound effect to be played together with the reproduced audio file. It is characterized by including.

Touch pad, playback speed, playback direction, sound effect

Description

METHOD AND DEVICE FOR AUDIO PROCESSING IN A WIRELESS TERMINAL}

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

2 is an exemplary view of a touch pad unit according to an embodiment of the present invention.

3 is a flowchart illustrating a process of mixing an audio file through a touch pad input according to an embodiment of the present invention.

The present invention relates to a portable terminal, and more particularly, to an audio processing method and apparatus for a portable terminal.

In general, a mobile terminal refers to a communication device that can exchange calls and data while moving. Recently, a variety of useful functions have been implemented in the mobile terminal in accordance with the era of digital convergence. For example, a user may use an audio on demand (AOD) and video on demand (VOD) service using a mobile terminal, or call parties may make a video call with the other person's face or download and play a game. Among these functions, there is an active movement to implement the functions of a conventional portable music player (for example, a cassette / CD / codec player) in a mobile terminal, and user requirements for them are also diversifying. . However, the music playback function currently provided by the mobile terminal remains at a level that is simply played to music and heard by the user. In other words, it does not provide a function such as simply playing music and editing the played music to a user's preference or adding various sound effects. Editing music to your preferences or adding sound effects is called Mix or Mixing. If you can mix music to your preferences beyond simply playing music, It may double the joy of hearing. Therefore, there is a need to provide a portable terminal that can mix the music to be reproduced in accordance with the various personalities of the user.

Accordingly, the present invention provides an audio processing method and apparatus for a portable terminal capable of variously mixing music according to a user's preference.

To this end, the present invention provides an audio processing apparatus of a portable terminal, comprising: a touch pad unit including at least one divided area, and a first area of the divided area while an audio file is played in a mix mode; When a touch pad input is generated, the playback direction and the playback speed of the audio file to be played are adjusted and played according to the moving direction and the input speed of the touch pad input generated in the first area, respectively, and the second of the divided areas is played back. When the input of the region is generated, a preset sound effect is changed according to at least one of the position, direction, and speed of the touch pad input generated in the second region, and the changed sound effect is controlled to be played together with the played audio file. It characterized in that it comprises a control unit.

In addition, the present invention provides an audio processing method of a portable terminal, in the mix mode of the audio file being played, the process of the touch pad input is generated for the audio file being played, and the generated touch pad input is a touch pad input unit If the input is generated in the first area, controlling the playback direction and the playback speed of the audio file to be reproduced according to the moving direction and the input speed of the touch pad input generated in the first area, respectively; If the touch pad input is an input generated in the second area of the touch pad input unit, the preset sound effect is changed according to at least one of the position, direction, and speed of the touch pad input generated in the second area, and the changed sound effect And playing the audio file together with the playing audio file.

In addition, the present invention provides an audio processing apparatus of a mobile terminal, comprising: a touch pad unit including at least one divided area, and a touch of a second area among the divided areas while an audio file is played in a mix mode; When a pad input is generated, the reproducing audio file is equalized in a predetermined range according to the input position of the touch pad input generated in the second area, and a direction in which the touch pad input generated in the second area is generated. And a controller configured to control playback of the equalized audio file by controlling the playback direction and playback speed of the equalized audio file.

In the audio processing method of a mobile terminal, in a mix mode of a playing audio file, a process of generating a touch pad input with respect to the playing audio file, and the generated touch pad input may include a second area of the touch pad input unit. In the case of an input generated from, the equalizing of the audio file being reproduced in a predetermined range according to the input position of the touch pad input generated in the second area, and the direction of travel of the touch pad input generated in the second area. And controlling the playback direction and the playback speed of the equalized audio file according to the input speed, respectively.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 1, the wireless transceiver 23 includes an RF unit and a modem. The RF unit includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The modem MODEM includes a transmitter for encoding and modulating a signal to be transmitted, a receiver for demodulating and decoding a signal received at an RF unit, and the like.

The audio processor 25 may configure a codec, and the codec includes a data codec and an audio codec. The data codec processes packet data and the like, and the audio codec processes audio signals such as voice and multimedia files. The audio processor 25 converts and plays an analog audio signal received from a modem through the audio codec, or converts an analog audio signal generated from a microphone into a digital audio signal through the audio codec and transmits the digital audio signal to a modem. Perform the function. The codec may be provided separately or included in the controller 10. The audio processor 25 according to an embodiment of the present invention performs the function of equalizing an audio file to a specific range (low, mid, or high) or emphasizing a specific range of effect sounds to be inserted into the audio file.

The key input unit 27 is provided with keys necessary for input of numeric and character information and function keys necessary for setting various functions. The key input unit 27 according to an exemplary embodiment of the present invention may include a touch pad function to receive input of each key through the touch pad function.

The memory 30 may be composed of a program memory and a data memory. The program memory stores a program for controlling a general operation of the portable terminal. Memory 30 according to an embodiment of the present invention stores at least one audio file. The audio file is a music file in a digital format, and examples thereof may be mp3, ogg, flac, and aac. In addition, the memory 30 according to an embodiment of the present invention stores at least one sound effect. Here, the sound effect is a file stored separately from the played music file, and may be a sampling sound source.

The display unit 50 may be formed of a liquid crystal display (LCD) or organic light emitting diodes (OLED), and outputs various display information generated by the portable terminal. The display unit 50 according to an exemplary embodiment of the present invention may include a touch screen performing a touch pad function, and operate as an input unit for controlling the mobile terminal together with the key input unit 27.

The touch pad unit 60 may control the mobile terminal through a user's touch (for example, touch of a finger). The touch pad unit 60 according to an embodiment of the present invention receives a user's touch pad input required for mixing the audio files. The touch pad unit 60 according to an embodiment of the present invention detects a position where a touch pad input is detected and a moving direction (changes per unit time) of a position where the touch pad input is detected, thereby detecting the touch pad input input from the user. It detects the input direction and the instantaneous speed in the input direction.

The controller 10 switches and controls the overall operation or driving mode of the portable terminal. When a mix (Mix) for the audio file is requested, the controller 10 controls to mix the audio file through the touch pad input of the touch pad unit 60.

2 is an exemplary view of a touch pad unit 60 according to an embodiment of the present invention. In the present invention, the audio file played through the touch pad unit 60 is mixed. Referring to FIG. 2, the touch pad unit 60 according to an embodiment of the present invention is divided into two regions, a first region 61 and second regions 62a to 62c.

The first area 61 is an area used to adjust the playback speed and the playback direction of the audio file for which the mix is requested in the mix mode. For example, the user may control the play speed and the play direction of the audio file by applying a touch pad input to the first area 61 to the right or the left. That is, the user may set the playback direction of the audio file to be played in the reverse direction by inputting the touch pad to the right in the forward direction and the touchpad input to the left. The user can also set (faster or slower) the speed at which the audio file plays in the forward or reverse direction by speeding up or slowing down the touchpad input speed to the right or left.

The second areas 62a to 62c are areas used to insert an effect sound into an audio file or to equalize the audio file to a specific range according to a user setting. In the embodiment of the present invention, the second region has three input positions, and 62a, 62b, and 62c correspond to respective input positions. The 62a input position of the second area changes the sound effect so that the bass of the preset sound effect is emphasized, changes the playback direction and playback speed of the changed sound effect so that the bass sound is emphasized, or equalizes the audio file instead of the preset sound effect. It is used to The 62b input position of the second area is used to change the sound effect so that the midtone of the preset sound effect is emphasized, change the reproduction direction and reproduction speed of the changed sound effect so that the midtone is emphasized, or equalize the midtone of the audio file. The 62c input position of the second area is used to change the sound effect so that the high pitch of the preset sound effect is emphasized, to change the reproduction direction and reproduction speed of the changed sound effect so that the high pitch sound is emphasized, or to equalize the high sound of the audio file.

The user applies a touch pad input to any one of the input positions of 62a to 62c, thereby changing the preset sound effect so that any one of the low, mid, and high pitch of the preset sound effect is emphasized, or equalizing the audio file. At the same time, the touch pad input of the second area may adjust the playback direction and playback speed of the preset sound effect or audio file. That is, the user emphasizes a preset sound effect or a specific sound range of an audio file through touchpad input (right / left input direction, fast or slow input speed) to an input position 62a to 62c. At the same time, you can adjust the playback direction (forward / reverse) and playback speed (faster / slower) of the sound or audio file. Through the touch pad unit 60, a user applies a touch pad input only to the first area 61, a touch pad input only to the second areas 62a to 62c, or simultaneously touch pads to both areas. Input can be made, which allows you to create and play your own music to suit your tastes. A description of the mix of the audio file through the touch pad unit 60 will be described below with reference to FIG. 3.

3 is a flowchart illustrating a process of mixing an audio file through a touch pad input according to an embodiment of the present invention. Looking at the mixing process of the audio file of the present invention with reference to Figures 2 and 3 as follows.

If the user is requested to play the audio file (S301), the controller 10 controls to play the audio file requested to be played (S302). Thereafter, the controller 10 checks whether a mix for the audio file for which playback is not finished (S303) is requested (S304).

Mixing an audio file means that the audio file being played is edited (eg, Remix, DJaying) according to a user's preference and played back, and the edited audio file is saved. The mix of audio files is used to control the speed and direction of playback of the audio file being played, or to add new tracks to an existing track by dubbing several sound effects (or third audio files) into the audio file being played. Means recording). This allows you to manually adjust the rotation of the Elphi (playing slow or fast clockwise / counterclockwise) when playing the Elp Record (LP) on the turntable so that the Elpi's play speed and play direction are modified to produce a distinctive sound other than the original sound. Can be understood as collectively referred to as DJing or scratching.

When entering the mix mode for the audio file, the controller 10 checks whether a touch pad input of the first region of the touch pad unit 60 is generated while the audio file is played in the mix mode (S305). According to the touch pad input of the first region, the audio file is controlled to be reproduced by adjusting the reproduction direction and the reproduction speed of the audio file (S306).

As described with reference to FIG. 2, in the mixed mode, the first area 61 of the divided areas of the touch pad unit 60 is an area set to adjust the playback direction and the playback speed of the audio file to be played. Accordingly, the controller 10 enters the mix mode according to a user's request, and when a touch pad input of the first area 61 occurs while the audio file is played in the mix mode, the controller 10 generates the first mode 61. The playback direction and playback speed of the audio file being played are controlled according to the touch pad input. For example, if the touch pad input generated in the first area 61 is generated in the right direction, the controller 10 plays the playback direction of the audio file in the forward direction, and slows down according to the speed in the right direction. Play with or fast. On the contrary, if the touch pad input generated in the first region 61 is generated in the left direction, the control unit plays the audio file in the reverse direction, and plays the video in slow, normal speed or fast according to the speed in the left direction. do. According to an embodiment of the present invention, when the touch pad input to the right occurs, the playback direction of the audio file is set to be adjusted in the forward direction, and when the touch pad input to the left occurs, the playback direction of the audio file is set in the reverse direction. The setting can be changed. Accordingly, the user may apply the touch pad input in a desired direction so that the audio file is quickly played in the forward or reverse direction, and thereby, the audio file may be mixed and played according to his or her taste.

When a touch pad input of a second region other than the first region of the touch pad unit 60 is generated (S307), the controller 10 changes the preset sound effect to be played together with the audio file being played (S308). .

The controller 10 checks an input position where a touch pad input is generated in the second regions 62a to 62c, and changes a preset sound effect according to the touch pad input according to the input position. For example, if the touch pad input by the user is generated at the input position 62b, the controller 10 changes the preset sound effect so that the midtone sound of the preset sound effect is emphasized, and the touchpad at 62b sound effected by the user. Play according to the input. That is, if the user moves from 62b to the right side and again to the left side, the controller 10 emphasizes the midtone sound of the preset effect sound, controls the midtone sound to be played quickly in the forward direction, and then quickly plays in the reverse direction. This allows the user to play (mix) the audio file to his or her taste by changing the sound effect separately from the audio file being played, and outputting the changed sound sound along with the audio file (as a separate sound through the speaker). have.

According to an embodiment of the present invention, it is assumed that the touch pad input of the second area is set to change a preset sound effect. However, when the user's setting is set to equalize an audio file being played, the touch pad input of the second area is It is used to equalize an audio file into a predetermined range (e.g. to emphasize bass, midtone or treble).
For example, in FIG. 2, when the touch pad input is applied to the input position 62a, the controller 10 emphasizes and plays the bass of the audio file being played, and when the touch pad input is applied to the input position 62b, the controller 10 plays the playback. When the touch pad input is applied to the input position 62c, the controller 10 controls to reproduce the high sound of the audio file being played.

When the mix mode ends (S309), the controller 10 checks whether to store the mixed audio file through steps S305 to S306 or S307 to S308 (S310), and controls to store the requested audio file (S311). ).

When the storage of the mixed audio file is requested through steps S302 to S308, the controller 10 controls to store the mixed audio file separately from the audio file before mixing. In this case, the mixed audio file may be stored in an overwrite form in the audio file before mixing.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined not only by the claims but also by the equivalents of the claims.

In the present invention of mixing the audio file through the touchpad input as described in detail above, the effects obtained by the representative of the disclosed invention will be briefly described as follows.

The present invention can mix and play audio files according to the user's taste, thereby increasing the pleasure of listening to music and producing better music.

Claims (20)

In the audio processing device of a mobile terminal, A touch pad unit including at least one divided area; When a touch pad input of a first region of the divided regions is generated while an audio file is played in a mix mode, the reproduced audio is generated according to a moving direction and an input speed of the touch pad input generated in the first region. Play the file by adjusting the playback direction and playback speed respectively. When the input of the second area of the divided areas is generated, a preset sound effect is changed according to at least one of the position, direction, and speed of the touch pad input generated in the second area, and the changed sound effect is reproduced. And a control unit for controlling the audio file to be played along with the audio file. The method of claim 1, wherein the control unit, And controlling the playback direction and the playback speed to be stored so that the reproduced audio file is stored in the memory of the portable terminal. The method of claim 1, wherein the control unit, The sound effect is changed so that a predetermined sound range of the sound effect is emphasized according to the input position of the touch pad generated in the second region, and the reproduction direction of the sound effect is generated according to the input direction and input speed of the touch pad generated in the second region. And controlling the playback speed to change the playback speed. The method of claim 3, The input position is an audio processing device of a portable terminal, characterized in that any one of the low range, mid-range and high frequency range divided in the second area. The method of claim 3, wherein the control unit, And control the stored audio file and the changed sound effect as one audio file. The method of claim 1, wherein the touch pad unit, The audio processing device of the portable terminal, characterized in that included in any one of the display unit or key input unit of the portable terminal. In the audio processing method of a mobile terminal, In the mix mode of the audio file being played, the process of the touch pad input is generated for the audio file being played; If the generated touch pad input is an input generated in the first area of the touch pad input unit, the playback direction and the playback speed of the audio file to be reproduced are determined according to the moving direction and the input speed of the touch pad input generated in the first area. To adjust and play each one, If the generated touch pad input is an input generated in the second region of the touch pad input unit, the preset sound effect is changed according to at least one of the position, direction, and speed of the touch pad input generated in the second region. And playing the changed sound effect together with the audio file being played. The method of claim 7, wherein And storing the reproduced audio file in the memory unit of the portable terminal after the reproduction direction and the reproduction speed are adjusted. The method of claim 7, wherein the playing of the changed sound effect together with the playing audio file comprises: Changing the sound effect so that a predetermined sound range of the sound effect is emphasized according to an input position of the touch pad generated in the second area; And adjusting and changing a reproduction direction and a reproduction speed of the effect sound according to an input direction and an input speed of the touch pad generated in the second area. The method of claim 9, And the input position is any one of a low range, a mid range, and a high range sound range divided in the second area. The method of claim 9, And storing the reproduced audio file and the changed sound effect as one audio file. The method of claim 7, wherein The touch pad unit is included in any one of a display unit or a key input unit of the mobile terminal. In the audio processing device of a mobile terminal, A touch pad unit including at least one divided area; When a touch pad input of a second area of the divided areas is generated while an audio file is played in a mix mode, the audio file to be played is determined according to an input position of the touch pad input generated in the second area. And a control unit for controlling to equalize and reproduce the sound in the audio range of the portable terminal. The method of claim 13, wherein the control unit, When a touch pad input of a first area of the divided areas is generated while the audio file is playing in the mix mode, the playback is performed according to a moving direction and an input speed of the touch pad input generated in the first area. An audio processing apparatus of a portable terminal, characterized in that for controlling the playback direction and the playback speed of the audio file to be adjusted. The method according to claim 13 or 14, wherein the control unit, And storing the audio file in which the reproduction direction and the reproduction speed are respectively adjusted in the memory of the portable terminal. The method of claim 13, The input position is an audio processing device of a portable terminal, characterized in that any one of the low range, mid-range and high frequency range divided in the second area. In the audio processing method of a mobile terminal, In the mix mode of the audio file being played, the process of the touch pad input is generated for the audio file being played; If the generated touch pad input is an input generated in the second area of the touch pad input unit, the reproduced audio file is equalized to a predetermined range according to the input position of the touch pad input generated in the second area. An audio processing method of a portable terminal, comprising the step of playing. The method of claim 17, If the generated touch pad input is an input generated in the first area of the touch pad input unit, the playback direction and the playback speed of the audio file being played may be determined according to the moving direction and the input speed of the touch pad input generated in the first area. The audio processing method of the portable terminal, characterized in that further comprising the step of adjusting and playing each. The method of claim 17 or 18, And storing the audio file in which the reproduction direction and the reproduction speed are respectively adjusted in a memory of the portable terminal. The method of claim 17, And the input position is any one of a low range, a mid range, and a high range sound range divided in the second area.

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