JP5151683B2 - Audio apparatus, audio data dividing method and program - Google Patents

Description

  The present invention relates to an audio device, an audio data dividing method, and a program.

  Some audio devices that are widely used generally include a dividing function for dividing audio data to be reproduced at a predetermined position. According to the division function, a large volume of audio data can be divided into a plurality of audio data, which is convenient for cueing during reproduction.

  Usually, the dividing operation by the dividing function is performed by the user, and the general dividing operation is performed by the following procedure. First, the user reproduces audio data up to a desired position to be divided (hereinafter referred to as “divided position”), and at the time of reproduction to the divided position, the user presses an input key or the like to designate the divided position. When the user designates a division position, the audio apparatus repeats and reproduces audio data after the designated division position for several seconds. At this time, the user confirms whether or not the division position designated by the user is appropriate. If appropriate, the user presses the input key again to perform an operation for determining the designated division position.

Patent Document 1 discloses an information reproduction storage device that inserts a silence period at a division position designated by a user and performs repeat reproduction for confirmation before and after the division position. Since the front and rear of the division position are repeatedly reproduced with the silence period inserted, the user can easily confirm the division position and the front-rear relation of the division position.
JP-A-9-198851

  However, according to the information reproduction storage device of Patent Document 1, if the original audio data includes a silence period, whether it is an inserted silence period or a silence period included in the original audio data, The user is difficult to judge. Therefore, the user must listen carefully to the audio data during repeat playback for confirmation of the division position.

  An object of the present invention is to provide an audio device, an audio data dividing method, and a program that can easily check the division position and the context of the division position.

According to the invention of claim 1,
An audio device capable of dividing audio data at an arbitrary dividing position,
Reproducing means for reproducing the audio data;
An input unit for designating a division position of the audio data to be reproduced by the reproduction unit and determining the division of the audio data at the designated division position;
If the division position is designated by the input means, the audio data before and after one Teihan circumference from the designated dividing position, regenerated by different volume each other in a certain range after the predetermined range before from the division position Control means for dividing the audio data at the determined division position when the division position is determined by the input means during the reproduction;
Is provided.

According to the invention of claim 2, in the invention of claim 1,
When reproducing the audio data before and after the designated division position, the control means sets the volume of the audio data in a certain range after the division position to be higher than the volume of the audio data in a certain range before the division position. An audio device is provided for playback.

According to the invention of claim 3, in the invention of claim 1,
The control means, when reproducing the audio data before and after the designated division position, the volume of the audio data in a certain range before the division position is higher than the volume of the audio data in a certain range after the division position. An audio device is provided for playback.

According to the invention described in claim 4, in the invention described in any one of claims 1-3,
When reproducing the audio data before and after the designated division position, the control means, if the audio data before and after the division position is silent, the audio data of a certain range before or after the division position Provided is an audio device that adds predetermined audio data to one of audio data in a certain range and reproduces the audio data.

According to the invention described in claim 5, in the invention described in any one of claims 1-4,
The control means is provided with an audio device that repeats and reproduces audio data in a certain range before and after the designated division position.
According to the invention described in claim 6, in the invention described in any one of claims 1 to 5,
An adjustment unit for adjusting a division position of the audio data designated by the input unit;
An audio device is provided in which the input means determines the division of the audio data at the division position of the audio data adjusted by the adjustment means.

According to the invention of claim 7 ,
An audio data dividing method capable of dividing audio data at an arbitrary dividing position,
And the step of designating a split position before Kion voice data,
A step of Ru is reproduced by different volume from each other in the audio data before and after a predetermined range of the designated division position, a certain range after the predetermined range before from the division position,
Dividing the audio data at the determined division position when the division position of the audio data is determined during reproduction in the step;
Is provided.

According to the invention described in claim 8 ,
On the computer,
A program for executing the audio data dividing method according to claim 7 is provided.

  According to the present invention, the audio data before and after the division position are repeatedly reproduced with different volumes. Therefore, the user can easily confirm whether or not the division position is appropriate, and can easily grasp the context of the division position.

Hereinafter, the optimal configuration and operation of the audio apparatus according to the present embodiment will be described in detail with reference to the drawings.
First, the functional configuration of the audio apparatus 100 will be described with reference to FIG.
The audio device 100 includes an operation unit 10, a display unit 20, a control unit 30, a storage unit 40, a DSP (Digital Signal Processor) 50, a DAC (Digital to Analog Converter) 60, an amplification unit 70, and an output unit 80. The

The operation unit 10 outputs various instructions to the control unit 30. The various instructions include, for example, an instruction to turn on the division function and an instruction to specify the audio data division position.
The display unit 20 performs status display, operation display, and the like of the audio device 100 based on a display signal output from the control unit 30.

The control unit 30 is a system microcomputer or the like, and centrally controls various processes in the audio device 100. Further, the control unit 30 outputs a control signal to the DSP 50 and instructs execution of signal processing in the DSP 50.
The storage unit 40 stores system programs and various programs. Further, the storage unit 40 includes a reproduction buffer, and performs processing of transferring the stored audio data to the reproduction buffer when reproducing the audio data.
The DSP 50 performs predetermined signal processing based on the control signal output from the control unit 30. Signal processing includes, for example, encoding and decoding of audio data.
The DAC 60 converts the digital audio signal into an analog audio signal, and outputs the converted analog audio signal to the amplification unit 70.

The amplifying unit 70 receives the analog audio signal output from the DAC 60, amplifies the received audio signal, and outputs the amplified audio signal to the output unit 80.
The output unit 80 outputs the analog audio signal output from the amplification unit 70 to a headphone, a speaker, or the like.

  Next, with reference to FIG. 2, a series of operations of division processing by the audio apparatus 100 will be described. Assuming that the processing shown in FIG. 2 is started, it is assumed that the division function is turned on via the operation unit 10 and audio data is reproduced as audio via the output unit 80.

The control unit 30 stands by until there is a division position designation instruction via the operation unit 10 (step S1: N). During standby, the control unit 30 continuously reproduces the audio data.
When there is an instruction to specify the division position (step S1; Y), the control unit 30 repeats the reproduction before and after the designated division position and reproduces it (step S2).

FIG. 3 illustrates the repeat reproduction process.
The control unit 30 transfers the audio data before the designated division position to the reproduction buffer for several seconds (step S21).
The control unit 30 sets a reference value for the volume of the audio data to be reproduced, and starts the division position detection timer (step S22). Note that the division position detection timer is stored in the control unit 30.
And the control part 30 reproduces | regenerates audio | voice data from the head address of a reproduction | regeneration buffer (step S23).

The control unit 30 receives time information from the division position detection timer (step S24).
When the division position detection timer expires (step S24; Y), the control unit 30 increases the volume by a certain amount within a predetermined range from the reference value set in step S22. Then, the audio data is continuously reproduced in the amplified state (step S25).

The control unit 30 determines whether or not to continue repeat reproduction (step S26).
When continuing (step S26; Y), the control part 30 judges whether the predetermined repeat reproduction | regeneration time has passed (step S27).

When the repeat reproduction time has not elapsed (step S27; N), the control unit 30 proceeds to step S24.
When the repeat reproduction time has elapsed (step S27; Y), the control unit 30 proceeds to step S22.
Returning to step S26, when the repeat reproduction is not continued (step S26; N), the control unit 30 ends the repeat reproduction process.

Returning to FIG. 2, after executing the repeat reproduction process, the control unit 30 determines whether there is an instruction to adjust the division position (step S3).
When there is an adjustment instruction (step S3; Y), the control unit 30 changes the division position based on the adjustment instruction (step S4). And the control part 30 transfers to step S2, and performs repeat reproduction | regeneration processing again.
When there is no adjustment instruction (step S3; N), the control unit 30 waits until there is an instruction to determine the division position (step S5; N).

  When there is an instruction to determine the division position (step S5; Y), the control unit 30 executes a process of dividing the audio data at the designated division position (step S6), and ends the division process.

FIG. 4 shows a conceptual diagram of the above-described division processing (FIG. 2) and repeat reproduction processing (FIG. 3). Hereinafter, with reference to FIG. 4, the division process and the repeat reproduction process are roughly divided into three processes.
If the division position is designated by the user while the audio data D1 is being reproduced (process 1), the audio data D1 is repeatedly reproduced within a certain range before and after the designated division position (process 2). At this time, the reproduction volume differs before and after the division position, and the reproduction volume is larger after the division position. In process 2, the user confirms the division position and grasps the front and rear of the division position.
When the division processing is executed at the designated division position, the audio data D1 is divided into audio data D1a and audio data D1b (processing 3).

  As described above, according to this embodiment, during repeat playback, the playback volume of audio data is played back differently before and after the division position. Therefore, the user can easily confirm the division position, and can easily grasp the context of the division position.

  The playback volume that is changed before and after the division position may be set so that the playback volume after the division position is larger than the playback volume before the division position. The user can easily grasp that the position where the reproduction volume is increased by reproducing the audio data is the divided position.

  Further, the same effect can be obtained by setting the playback volume before the division position to be larger than the playback volume after the division position.

Note that the repeat reproduction process (FIG. 3) in the present embodiment is not limited to the process described with reference to FIG. 3. For example, a predetermined sound may be added to the audio data after the division position, and repeat reproduction may be performed in the added state. Good. Such processing is effective when the sound is silent before or after the division position or is below a predetermined volume (hereinafter referred to as “silent state”).
Hereinafter, as another embodiment, a repeat reproduction process when a predetermined sound is added will be described.

FIG. 5 illustrates a repeat reproduction process with audio addition.
Steps S31 to S34 are the same as steps S21 to S24 in FIG.

When the division position detection timer expires (step S34; Y), the control unit 30 determines whether or not the sound before and after the division position is equal to or greater than a predetermined value (step S35).
If it is not equal to or greater than the predetermined value (step S35; N), that is, in the silent state, the control unit 30 adds a predetermined sound to the sound data after the division position and continuously reproduces it (step S36). .
When it is equal to or greater than the predetermined value (step S35; Y), the control unit 30 amplifies the sound volume within a predetermined range from the reference value set in step S32. Then, the audio data is continuously reproduced in the amplified state (step S37).

Hereinafter, the processes in steps S38 and S39 are the same as those in steps S26 and S27 in FIG.
When the repeat reproduction is not continued (step S38; N), the control unit 30 ends the repeat reproduction process with the addition of sound.

  As described above, according to another embodiment, when the sound before and after the division position is silent, the predetermined audio data is added to the audio data after the division position and reproduced. Therefore, the user can easily confirm the division position and can easily grasp the context of the division position.

  Note that the elements that are different before and after the division position are not limited to sound, and for example, display that is visible on the display unit 20 or the like may be performed together with sound. Specifically, when the audio data after the division position is reproduced in the repeat reproduction process (FIGS. 3 and 5), the volume is increased and the LED or the like starts blinking, or the blinking speed is increased before and after the division position. You may change it.

It is a figure which shows the function structure of an audio apparatus. It is a flowchart which shows a division | segmentation process. It is a flowchart which shows a repeat reproduction | regeneration process. It is a conceptual diagram explaining a division | segmentation process and a repeat reproduction | regeneration process. It is a flowchart which shows the repeat reproduction | regeneration process accompanied by an audio | voice addition.

Explanation of symbols

100 Audio Device 10 Operation Unit 20 Display Unit 30 Control Unit 40 Storage Unit 50 DSP
60 DAC
70 Amplifying unit 80 Output unit

Claims (8)

An audio device capable of dividing audio data at an arbitrary dividing position,
Reproducing means for reproducing the audio data;
An input unit for designating a division position of the audio data to be reproduced by the reproduction unit and determining the division of the audio data at the designated division position;
If the division position is designated by the input means, the audio data before and after one Teihan circumference from the designated dividing position, regenerated by different volume each other in a certain range after the predetermined range before from the division position Control means for dividing the audio data at the determined division position when the division position is determined by the input means during the reproduction;
An audio device comprising: When reproducing the audio data before and after the designated division position, the control means sets the volume of the audio data in a certain range after the division position to be higher than the volume of the audio data in a certain range before the division position. The audio device according to claim 1, wherein the audio device is played back. The control means, when reproducing the audio data before and after the designated division position, the volume of the audio data in a certain range before the division position is higher than the volume of the audio data in a certain range after the division position. The audio device according to claim 1, wherein the audio device is played back. When reproducing the audio data before and after the designated division position, the control means, if the audio data before and after the division position is silent, the audio data of a certain range before or after the division position The audio apparatus according to any one of claims 1 to 3, wherein predetermined audio data is added to and reproduced from any one of audio data in a certain range . The audio device according to any one of claims 1 to 4, wherein the control unit repeats and reproduces audio data in a certain range before and after the designated division position. An adjustment unit for adjusting a division position of the audio data designated by the input unit;
The audio apparatus according to claim 1, wherein the input unit determines the division of the audio data at a division position of the audio data adjusted by the adjustment unit. An audio data dividing method capable of dividing audio data at an arbitrary dividing position,
And the step of designating a split position before Kion voice data,
A step of Ru is reproduced by different volume from each other in the audio data before and after a predetermined range of the designated division position, a certain range after the predetermined range before from the division position,
Dividing the audio data at the determined division position when the division position of the audio data is determined during reproduction in the step;
Audio data segmentation method. On the computer,
The program for performing the audio | voice data division | segmentation method of Claim 7 .

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