JP6484066B2 - Audio equipment - Google Patents

Description

  The present invention relates to an audio apparatus.

  Some audio apparatuses mounted on a vehicle can reproduce sounds of a plurality of contents such as a radio, a CD, and a car navigation. In such an audio apparatus, in general, a setting adjustment screen is displayed for each content, and the volume and sound quality can be adjusted for each content. There is also an audio device that reproduces a sample sound for confirming the adjusted volume and sound quality and can perform an adjustment operation while confirming the sample sound. In addition, there exists patent document 1 as a technique relevant to this invention, for example.

JP 2007-36375 A

  However, in practice, there are cases where sounds of a plurality of contents are superimposed and output, for example, a guidance voice for car navigation is output during CD reproduction. In such a case, the sound that can be actually heard is a sound in which the sounds of the contents overlap, and is different from the sound of the contents alone. For this reason, even if individual adjustments are made while checking the sample sound for each content, the sound that can be heard during actual use may not be the volume or sound quality desired by the user. In this case, the user needs to perform the adjustment operation again, which is not convenient.

  The present invention has been made in view of the above problems, and can adjust settings while confirming an actual output sound by superimposing or continuously outputting sample sounds of a plurality of contents. The purpose is to provide.

In order to solve the above-mentioned problem, the invention of claim 1 is an audio device capable of outputting a plurality of types of audio signals, and a setting value changing means for changing a setting value when outputting the audio signals; Setting value selection means for selecting a setting value associated with the audio signal, and audio processing means for processing the corresponding audio signal based on the selected setting value and then outputting the processed audio signal from the output device The setting value selection means selects each setting value corresponding to two or more audio signals when there is an instruction to listen to the audio signal based on the setting value, and the audio processing means It is an audio device that simultaneously outputs a trial audio signal corresponding to each setting value from the output device .

  According to a second aspect of the present invention, in the audio device according to the first aspect, when the setting value selection unit is instructed to listen to the audio signal based on the setting value, each setting corresponding to all types of audio signals is provided. Select a value.

Further, the invention of claim 3, in the audio apparatus according to claim 1 or 2, wherein the audio processing means, for possible audio signal output simultaneously when using other than trial, of the audio signal The audio signals for trial listening are output simultaneously.

According to a fourth aspect of the present invention, there is provided an audio apparatus capable of outputting a plurality of types of audio signals, wherein the set value changing means for changing the set values when outputting the audio signals is associated with the output audio signals. A set value selecting means for selecting the set value, and a sound processing means for outputting the processed sound signal from the output device after processing the corresponding sound signal based on the selected set value, When there is an instruction to listen to an audio signal based on the set value, the set value selection unit selects each set value corresponding to two or more audio signals, and the audio processing unit sets the selected set value to each set value. an audio device for continuously outputting a corresponding preview voice signal from the output device.

The invention of claim 5 is the audio device of claim 4, wherein the audio processing means, the audio signal that is not output simultaneously when using other than listen, listen audio signal voice signal Output each other continuously.

According to a sixth aspect of the present invention, in the audio device according to any one of the first to fifth aspects, the display device further includes display control means for displaying on the display device an adjustment screen for changing the set value. The control means displays adjustment screens corresponding to the plurality of types of audio signals on the same screen.

  According to the first to seventh aspects of the invention, a plurality of types of audio signals can be auditioned, so that the setting can be adjusted while confirming the output states of the plurality of sounds.

FIG. 1 is a diagram showing an outline of an audio apparatus. FIG. 2 is a diagram illustrating an example of a display screen. FIG. 3 is a flowchart showing processing of the audio device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<1. Embodiment>
<1-1. Configuration of Audio Device>
FIG. 1 is a diagram illustrating a configuration of an audio apparatus 1 according to the present embodiment. The audio device 1 is, for example, an in-vehicle device (car audio device) mounted on a vehicle such as an automobile. The audio device 1 is provided in the vehicle interior of the vehicle, and a plurality of types of sounds and sounds (hereinafter sometimes simply referred to as “audio types”) in the vehicle interior via a plurality of speakers 21 provided separately in the vehicle interior. Is output. The plurality of types of voices output by the audio device 1 are, for example, car navigation guidance voices (hereinafter referred to as “navigation guidance sounds”), operation sounds, audio sounds, smartphone linkage function sounds (hereinafter referred to as “smartphone linkage sounds”). ), Hands-free sound.

  The navigation guidance sound is guidance voice that is informed to the driver at the time of route guidance, such as “300 meters ahead, left direction”. The operation sound is an audio operation sound that is output when the user operates the audio device 1, for example, a BEEP sound such as “Peep” or “Pip”. The audio sound is an audio reproduction sound when reproducing a CD, DVD, radio, television or the like that can be reproduced by the audio apparatus 1. Moreover, a smart phone cooperation sound is a sound output when portable devices, such as a smart phone brought into the vehicle interior, and the audio apparatus 1 perform cooperation operation via communication. The hands-free sound is an incoming sound to a telephone such as a smartphone brought into the vehicle interior, or a voice of the other party or his / her own conversation that is output when the user makes a hands-free call.

  In addition, the audio apparatus 1 according to the present embodiment can individually adjust the volume and sound quality to be output for these multiple types of sound. That is, the audio device 1 adjusts the volume and sound quality in units of sound types. The volume adjustment is a so-called volume adjustment. The sound quality adjustment includes, for example, sound field control, frequency characteristic adjustment using an equalizer, output setting from a speaker, sound type setting, and the like. In the following, the adjustment of the volume and the sound quality may be simply referred to as “sound adjustment”.

  The audio apparatus 1 outputs, for example, a navigation guidance sound adjusted for a navigation guidance sound, and outputs a sound such as a CD or a radio adjusted for an audio sound. Furthermore, the audio device 1 also has a function of outputting a sample sound (so-called test sound) reflecting the adjusted set value when adjusting the sound. That is, the user can perform a sound adjustment operation while listening to the sample sound.

  Next, a specific configuration of the audio apparatus 1 will be described. The audio device 1 includes a control unit 11, an audio processing unit 12, an audio signal acquisition unit 13, and a storage unit 14.

  The audio processing unit 12 is a dedicated processor (hardware circuit) called DSP (Digital Signal Processor) for the purpose of performing signal processing on an audio signal at high speed. The sound processing unit 12 can change the volume and quality of the sound reproduced by the audio apparatus 1 by executing various signal processes on the sound signal. Then, the audio processing unit 12 outputs the processed audio signal to the speaker 21. Thereby, the sound whose volume and sound quality are adjusted is output from the speaker 21.

  The audio signal acquisition unit 13 acquires, for example, an audio signal indicating the recorded contents of the disc by reading a disc such as a CD or a DVD, and outputs the audio signal to the audio processing unit 12. The audio signal acquisition unit 13 receives an audio signal indicating the broadcast content of the television or radio by receiving a broadcast wave of the television or radio, and outputs the audio signal to the audio processing unit 12. The audio signal acquisition unit 13 acquires an audio signal indicating the user's call voice via a microphone or the like (not shown), and outputs the audio signal to the audio processing unit 12.

  The storage unit 14 is, for example, a nonvolatile memory such as a flash memory, and stores various types of information. The storage unit 14 stores audio data 14a, parameters 14b, and a program 14c.

  The audio data 14a is digital data in a predetermined audio compression format such as MP3. An audio signal can be obtained by decoding the audio data 14a. The voice data 14a includes, for example, voice data of sample sounds output during sound adjustment, voice data of navigation guidance sounds, voice data of operation sounds, voice data of smartphone linkage sounds, and the like.

  Therefore, the audio processing unit 12 can perform signal processing on both the audio signal acquired by the audio signal acquisition unit 13 and the audio signal based on the audio data 14a stored in the storage unit 14. It is. That is, the audio device 1 can reproduce any of sound based on a disk or broadcast wave, sound based on a user's call voice, and sound based on the audio data 14a.

  The parameter 14b is a sound adjustment parameter used by the sound processing unit 12 for signal processing. The parameter 14b is a setting value in which the voice type is associated with the adjusted parameter value. The audio processing unit 12 executes various signal processes on the audio signal based on the parameter 14b. Therefore, the volume and sound quality of the sound reproduced by the audio device 1 are defined by the parameter 14b.

  The control unit 11 is a microcomputer that comprehensively controls the entire audio apparatus 1. The control unit 11 includes a CPU, a RAM, a ROM, and the like. Various functions of the control unit 11 are realized by the CPU performing arithmetic processing according to the program 14c stored in the storage unit 14. The operation determination unit 11a, the display control unit 11b, the parameter change unit 11c, and the parameter selection unit 11d illustrated in the drawing are some of the functions of the control unit 11 that are realized by the CPU performing arithmetic processing according to the program 14c.

  When the user operates the touch panel 23, the operation determination unit 11a determines the operation content of the user based on a signal input from the touch panel 23.

  The display control unit 11 b controls display contents on the display 22. The display control unit 11b displays a change screen (adjustment screen) on the display screen of the display 22 when changing the size of the parameter.

  The parameter changing unit 11c changes the size (setting value) of the sound adjustment parameter in response to a user operation on the touch panel 23. That is, the parameter changing unit 11c adjusts and changes the set values of the sound volume and sound quality of each sound type. When changing the size of the parameter, the user performs various operations for instructing the touch panel 23 to change the size of the parameter while the change screen is displayed on the display screen of the display 22. The parameter changing unit 11c changes the size of the sound adjustment parameter for each voice type based on the user operation content.

  The parameter selection unit 11d selects a changed parameter value (setting value) corresponding to the output voice type and outputs the selected parameter value to the voice processing unit 12. Specifically, when the voice type output from the audio device 1 is selected automatically or manually by the user, the parameter selection unit 11d selects a parameter value associated with the selected voice type. This can be performed by extracting and reading from the parameter 14b stored in the storage unit 14.

  For example, when the audio apparatus 1 outputs a navigation guidance sound, the parameter selection unit 11d selects a setting value adjusted for the navigation guidance sound from the parameter 14b of the storage unit 14 and outputs the selected setting value to the voice processing unit 12. When the audio apparatus 1 plays a CD, the parameter selection unit 11d selects a setting value adjusted for audio sound from the parameter 14b of the storage unit 14 and outputs the selected value to the audio processing unit 12.

  When the user operates a trial listening instruction while the adjustment screen is displayed, the audio apparatus 1 simultaneously outputs sample sounds corresponding to all kinds of sound types reflecting the set values. That is, the parameter selection unit 11d adjusts the setting value adjusted for the navigation sound, the setting value adjusted for the audio sound, the setting value adjusted for the operation sound, the setting value adjusted for the smartphone linkage sound, and the hands. The set value adjusted for the free sound is selected and output to the sound processing unit 12.

  Then, the sound processing unit 12 executes processing based on the corresponding set value for the sound signal of the sample sound of each sound type, and outputs each sample sound reflecting the set value via the speaker 21. That is, each sample sound is superimposed and output.

  The display 22 is a thin display device including a liquid crystal panel, for example. The display 22 displays various information according to instructions from the control unit 11. The audio device 1 is arranged on an instrument panel or the like in the vehicle cabin so that the display screen of the display 22 can be visually recognized by the user.

  The touch panel 23 is an input device that is operated by a user directly touching with a finger. The touch panel 23 is provided so as to overlap the display screen of the display 22. When the user operates the touch panel 23, a signal indicating the operated point is input to the control unit 11.

<1-2. Sound adjustment and sample sound output>
Next, an operation in which the user operates the audio device 1 to adjust the volume and quality of the sound to be output, and a process in which the audio device 1 outputs the sampled sound whose sound has been adjusted will be described.

  In this embodiment, the sound volume adjustment will be described as an example. However, the present invention is not limited to this, and the same applies to the case of sound quality setting, volume setting and sound quality setting.

  When the user operates the touch panel 23 to input a sound adjustment instruction, a sound adjustment screen (adjustment screen) is displayed on the display 22. FIG. 2 is a diagram illustrating an example of the adjustment screen 30 when performing volume setting. In the case of sound quality setting, an adjustment screen that can change each sound quality setting is displayed. In the case of volume setting and sound quality setting, an adjustment screen that can change both volume setting and sound quality setting is displayed. Is done.

  As shown in FIG. 2, on the adjustment screen 30, voices such as navigation guidance sounds and operation sounds are displayed as a list as voice types 31 to be adjusted. Further, on the adjustment screen 30, a current set value 32 for each sound type 31 and a button 33 for changing the set value are displayed next to the display of each sound type 31.

  When the user operates the setting value adjustment button 33 corresponding to the voice type 31 desired to be changed, the setting value increases or decreases according to the operation content. That is, the parameter changing unit 11c changes the parameter value according to the user operation content. The changed parameter value is stored in the storage unit 14 in association with the voice type.

  For example, when the user tries to change the volume of the audio sound, the parameter value is changed when the user operates the left button 33a displayed next to the audio type 31 displayed as the audio sound shown in FIG. Thus, the volume setting value decreases, and when the right button 33b is operated, the parameter value is changed and the volume setting value increases.

  Similarly, when changing the volume of another audio type 31, the volume is increased or decreased by operating the left / right button 33 displayed next to the location where the desired audio type 31 is displayed. be able to. As described above, since each audio type 31 is displayed as a list, it is possible to change the setting value of each audio type on the same screen without displaying a different adjustment screen for each audio type.

  A preview button 34 is displayed on the adjustment screen. When the user operates the trial listening button 34, a sample sound reflecting the set value adjusted for each sound type is output. In the example of FIG. 2, when the user operates the trial listening button 34, the audio apparatus 1 selects a setting value adjusted for each voice type. That is, the parameter selection unit 11d selects a setting value associated with each voice type from the storage unit 14. Then, the audio apparatus 1 processes the sample sounds for each type of sound so as to obtain a volume based on the corresponding set value, and outputs each sample sound simultaneously.

  Specifically, the audio device 1 reads the setting values of each voice type such as a navigation guidance sound and an operation sound (BEEP sound) from the parameter 14 b stored in the storage unit 14, and the voice data stored in the storage unit 14 The sample sound data of each voice type such as navigation guidance sound and operation sound (BEEP sound) is read from 14a. And the audio apparatus 1 outputs all the sample sound simultaneously, after performing the process based on each setting value corresponding to each sample sound data. Thereby, each sample sound is output at the volume set individually.

  When an audio sound is used as the type of sound to be output, the sound data 14a stored in the storage unit 14 may be used as sample sound data, or a reproducing source such as a CD or radio may be used as the sample sound. . When the source during playback is used as the sample sound, processing based on the set value is performed on the source during playback instead of executing processing based on the set value for the audio data.

<1-3. Audio device processing>
Next, processing of the audio apparatus 1 will be described using a flowchart. FIG. 3 is a flowchart showing processing of the audio apparatus 1. The flowchart of FIG. 3 starts when the audio apparatus 1 is turned on and started up. Further, the process shown in FIG. 3 is periodically executed at predetermined intervals.

  When activated, the audio device 1 determines whether or not there is an adjustment instruction from the user (step S11). Specifically, the audio device 1 determines whether or not there is an instruction to display an adjustment screen by a user operation. For example, when a button for volume adjustment or the like is selected from the menu item, it is determined that there is an adjustment instruction.

  If there is no adjustment instruction (No in step S11), the audio apparatus 1 ends the sound adjustment process. On the other hand, if there is an adjustment instruction (Yes in step S11), the audio apparatus 1 displays an adjustment screen (step S12). For example, when the user selects a volume adjustment button, the audio device 1 displays an adjustment screen that allows volume settings for a plurality of audio types. When the user selects a volume adjustment button or a sound quality adjustment button, the audio apparatus 1 displays an adjustment screen on which both settings can be made for a plurality of sound types.

  Next, the user operates the adjustment screen to change the set value (step S13). As described above, for example, when the user adjusts the setting value to a desired value by operating the setting value adjustment button corresponding to the sound type to be changed by the user, the audio device 1 is set to the user. The setting value of the sound item is changed in accordance with the operation of. That is, the parameter changing unit 11c changes the parameter value according to the operation amount of the user.

  Next, the audio device 1 determines whether or not there is a trial listening instruction (step S14). Specifically, since the audition button is displayed on the adjustment screen, the audio apparatus 1 determines whether or not the audition button is operated when the adjustment screen is displayed.

  If the audition button has not been operated (No in step S14), the process proceeds to a process of determining whether or not the adjustment operation has been completed (step S16). On the other hand, when the audition button is operated (Yes in step S14), the audio apparatus 1 outputs a sample sound (step S15). Specifically, the audio device 1 simultaneously outputs sample sounds reflecting the set values for all types of sound types.

  That is, the parameter selection unit 11d selects a setting value associated with each voice type from the storage unit 14 and outputs it to the voice processing unit 12, and the voice processing unit 12 reflects the setting value in the voice signal of each voice type. After executing the processing, the sample sound of each voice type is simultaneously output from the speaker 21. Referring to the example of FIG. 2, each sample sound of a navigation guidance sound, an operation sound (BEEP sound), an audio sound, a smartphone linkage sound, and a hands-free sound is superimposed and output at each set sound volume value.

  Next, the audio device 1 determines whether or not the adjustment operation has been completed (step S16). For example, when the user performs an operation for displaying a screen other than the adjustment screen, such as an operation for displaying a menu screen, the audio apparatus 1 determines that the adjustment operation has been completed.

  As described above, since the audio apparatus 1 displays the buttons for adjusting the set values related to a plurality of types of voices on one screen, adjustment is possible without changing the display of the screen for adjustment for each voice type. become. For this reason, for example, it is possible to individually adjust setting values of a plurality of sound types on the same screen while listening to sample sounds of each sound type.

  Further, since the audio apparatus 1 outputs sample sounds of all kinds of sound types at the same time, it is possible to audition sounds in the same situation as the situation where all kinds of sound types are actually output. That is, when adjusting the setting value of each voice type while outputting each sample sound individually, although it may be different from the assumed sound in the situation where all the voice types are actually output, When sample sounds are sampled (when setting values are adjusted), sample sounds of all types are superimposed and output, so appropriate adjustments can be made and situations that would not be expected can be avoided. .

<2. Modification>
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made. Below, such a modification is demonstrated. All the embodiments including the embodiments described above and the embodiments described below can be appropriately combined.

  In the above-described embodiment, the content of outputting sample sounds related to all types of voices has been described. However, the present invention is not limited to this. Sample sounds related to two or more voice types among a plurality of voice types may be output simultaneously. For example, a sample sound of a voice type that may be simultaneously output during actual use is output at the same time.

  A specific example will be described. It is assumed that a navigation guidance sound may be superimposed and output when outputting radio sound. In this case, when there is a trial listening instruction, the audio apparatus 1 selects only the sample sound of the audio sound and the sample sound of the navigation guidance sound, and superimposes and outputs these sample sounds.

  A combination of sounds on which such sample sounds are superimposed can be set as appropriate. The audio apparatus 1 may automatically set combinations that may be simultaneously output during actual use, or the user may set arbitrary combinations as appropriate.

  On the contrary, when there is a combination of sound types that are not output at the same time in actual use, these sample sounds may not be output at the same time during the trial listening. Also in this case, since the sample sound can be output in accordance with the actual use state, appropriate adjustment is possible.

  Furthermore, for the sound types that are not output at the same time during actual use, each sample sound may be output with a time difference during trial listening. For example, when a sound such as a CD or radio is not output during a hands-free call, the timing of the sample sound of the audio sound and the sample sound of the hands-free sound is shifted at the time of listening (for example, continuous Output) and so on.

  Specifically, after the sample sound of each sound type other than the hands-free sound is superimposed and output, the sample sound of each sound type other than the audio sound is superimposed and output. In this case as well, it is possible to output sample sounds in accordance with the actual use state and to listen to sample sounds of all voice types, so that appropriate adjustment is possible.

  In addition, sample sounds of a plurality of sound types may be output in order. For example, sample sounds such as navigation guidance sounds, operation sounds (BEEP sounds), audio sounds, smartphone linkage sounds, and hands-free sounds are continuously output. Thereby, it becomes possible to listen while comparing the sample sounds of the respective voice types.

  Further, when outputting the sample sound of each sound type, the user may be notified of the sound type to be output. For example, a sample sound is output after the sound type is output as a sound, or the sound type of the sample sound to be output is displayed. Specifically, a sample sound of the navigation guidance sound is output after outputting the voice of “navigation guidance sound”, or the “navigation guidance sound” is displayed on the display 22 when outputting the sample sound of the navigation guidance sound. is there. As a result, the user can easily grasp which sound type of sample sound is to be output.

  In addition, for each voice type, a setting value when output individually and a setting value when output simultaneously with other voice types may be adjusted. In this case, the setting value can be changed for each scene and output. For example, when a certain voice type is output alone, the voice type is output using a setting value adjusted for individual output. When outputting simultaneously with other voice types, the respective voice types are output simultaneously using the set values adjusted for the combination. In this way, by switching the setting value according to the scene, it is possible to always output the voice type with the optimum setting value according to the scene.

  Further, in each of the above embodiments, it has been described that various functions are realized in software by the arithmetic processing of the CPU according to the program. However, some of these functions are realized by an electrical hardware circuit. May be. Conversely, some of the functions realized by the hardware circuit may be realized by software.

DESCRIPTION OF SYMBOLS 1 Audio apparatus 11 Control part 12 Audio | voice processing part 13 Audio | voice signal acquisition part 14 Memory | storage part 21 Speaker 22 Display 23 Touch panel

Claims (6)

An audio device capable of outputting multiple types of audio signals,
Setting value changing means for changing a setting value when outputting the audio signal;
Setting value selection means for selecting a setting value associated with the audio signal to be output;
Audio processing means for outputting the processed audio signal from the output device after processing the corresponding audio signal based on the selected setting value;
The set value selection means selects each set value corresponding to two or more audio signals when there is an instruction to listen to the audio signal based on the set values ,
It said voice processing means, an audio device, wherein Rukoto to output simultaneously listen audio signal corresponding to the selected each set value from the output device. The audio device according to claim 1.
The audio apparatus according to claim 1, wherein the set value selection means selects each set value corresponding to all types of audio signals when there is an instruction to listen to the audio signal based on the set values. The audio device according to claim 1 or 2 ,
Said voice processing means, for possible audio signal output simultaneously when using other than trial, the audio device, characterized in that to output preview audio signal with each other of the audio signals at the same time. An audio device capable of outputting multiple types of audio signals,
Setting value changing means for changing a setting value when outputting the audio signal;
Setting value selection means for selecting a setting value associated with the audio signal to be output;
Audio processing means for outputting the processed audio signal from the output device after processing the corresponding audio signal based on the selected setting value;
The set value selection means selects each set value corresponding to two or more audio signals when there is an instruction to listen to the audio signal based on the set values,
It said voice processing means, the audio device, characterized in that to continuously output a preview audio signal corresponding to the selected each set value from the output device. The audio device according to claim 4 , wherein
Said voice processing means, the audio signal that is not output simultaneously when using other than trial, the audio device, characterized in that to continuously output a preview voice signal between the voice signal. The audio device according to any one of claims 1 to 5 ,
Further comprising display control means for displaying an adjustment screen for changing the set value on a display device;
The audio apparatus, wherein the display control means displays an adjustment screen corresponding to the plurality of types of audio signals on the same screen.

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