CN112652327B - Audio channel adaptation effect testing method and device and automobile - Google Patents
Audio channel adaptation effect testing method and device and automobile Download PDFInfo
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Abstract
The invention provides a method and a device for testing an audio channel adaptation effect and an automobile, and relates to the field of audio channel adaptation effect testing. The method for testing the audio path adaptation effect comprises the steps of obtaining a first audio signal V1 sent to a second analog audio transmission module of a vehicle by a first analog audio transmission module of the vehicle and a second audio signal V2 sent to a sound output module of the vehicle by the second analog audio transmission module of the vehicle; obtaining the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal according to the first audio signal V1 and the second audio signal V2; and adapting the volume to the vehicle sound output module according to the gain of the vehicle second analog audio transmission module to the signal of the vehicle first analog audio transmission module. The audio relation that the audio test is only aimed at the test of a certain module but cannot be tested among the modules is avoided, and the stability of the sound output of the vehicle is ensured.
Description
Technical Field
The present invention relates to the field of audio path adaptation effect testing, and in particular, to a method and an apparatus for testing an audio path adaptation effect, and an automobile.
Background
Today, the technology rapidly develops, and the automobile becomes an indispensable transportation means for people to travel, but after many years of development, the requirement of people on the automobile is not just a transportation means, but is endowed with more functions. Such as the transmission of audio and the output of sound.
In the cabin system development process, common audio tests are only aimed at the test of a certain module, but the audio relation among the modules cannot be tested, audio signal transmission is carried out among the vehicle simulation audio transmission modules, and when the audio paths are matched, the control method is not quantized enough, so that the final output sound of the sound output module is too small, and the use experience of a user is influenced.
Disclosure of Invention
The embodiment of the invention provides a method, a device and an automobile for testing an audio path adaptation effect, which are used for solving the problems that in the prior art, in the development process of a cabin system, audio signal transmission exists between vehicle analog audio transmission modules, common audio tests only aim at the test of a certain module and cannot test the audio relation between the modules, and meanwhile, when the audio paths are matched, the management and control method is not quantized enough, so that the final output sound of a sound output module is too small, and the use feeling of a user is influenced.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for testing an audio path adaptation effect, comprising:
acquiring a first audio signal V1 sent to a second analog audio transmission module of a vehicle by a first analog audio transmission module of the vehicle and a second audio signal V2 sent to a sound output module of the vehicle by the second analog audio transmission module of the vehicle;
obtaining the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal according to the first audio signal V1 and the second audio signal V2;
and adapting the volume to the vehicle sound output module according to the gain of the vehicle second analog audio transmission module to the signal of the vehicle first analog audio transmission module.
Further, the first audio signal V1 and the second audio signal V2 are standard audio signals for testing.
Further, the obtaining the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal according to the first audio signal V1 and the second audio signal V2 includes:
the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal is represented by the formula: gain = 20log (V2/V1).
Further, before the adapting the sound volume to the vehicle sound output module according to the gain of the vehicle second analog audio transmission module to the signal of the vehicle first analog audio transmission module, the method further includes:
the peak-to-peak value Vpp1 of the first audio signal V1 and the peak-to-peak value Vpp2 of the second audio signal V2 are measured.
Further, the adapting the volume of sound to the vehicle sound output module according to the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal includes:
and according to the peak-to-peak value Vpp1 of the first audio signal V1 and the gain of the second audio signal V2 to the first audio signal V1, performing different levels of volume adaptation on the vehicle sound output module.
Further, the peak-to-peak value is the difference between the highest value and the lowest value of the signal in one period.
Further, the performing different levels of volume adaptation on the vehicle sound output module includes:
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a first preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a first preset gain value, adapting a first volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a second preset peak-to-peak value, and the gain of the vehicle analog audio transmission module to the signal of the vehicle first analog audio transmission module is greater than or equal to a second preset gain value, adapting a second volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a third preset peak-to-peak value, and the gain of the vehicle analog audio transmission module to the signal of the vehicle first analog audio transmission module is greater than or equal to a third preset gain value, adapting a third volume to the vehicle sound output module;
wherein the first volume is less than the second volume, and the second volume is less than the third volume.
The embodiment of the invention also provides a device for testing the adaptive effect of the audio channel, which comprises:
the acquisition module is used for acquiring a first audio signal V1 sent to the second analog audio transmission module by the first analog audio transmission module of the vehicle and a second audio signal V2 sent to the sound output module of the vehicle by the second analog audio transmission module of the vehicle;
the computing module is used for obtaining the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal according to the first audio signal V1 and the second audio signal V2;
and the adaptation module is used for adapting the volume to the vehicle sound output module according to the gain of the vehicle second analog audio transmission module to the signal of the vehicle first analog audio transmission module.
The embodiment of the invention also provides a tester for the audio channel adaptation effect, which comprises the following steps:
and a processor, a memory, where the memory stores a program executable by the processor, where the processor implements the steps of the method as described above when the processor executes the program.
The embodiment of the invention also provides an automobile, which comprises the device for testing the audio channel adaptation effect.
The scheme of the invention has at least the following technical effects:
in the embodiment of the invention, the volume is adapted to the vehicle sound output module by calculating the gain of the signal of the first analog audio transmission module of the vehicle by the second analog audio transmission module of the vehicle and the peak-to-peak value Vpp1 of the first audio signal V1 of the first analog audio transmission module, and finally the adaptation effect of the audio channel between the modules is judged according to the volume output by the vehicle sound output module. The method and the device solve the problem that in the prior art, the audio test is only aimed at the test of a certain module, but the audio relation among the modules cannot be tested. The stability of the sound output of the vehicle sound output module is ensured.
Drawings
FIG. 1 is a schematic diagram showing steps of a method for testing an audio channel adaptation effect according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a method for testing an audio path adaptation effect according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a testing apparatus for an audio path adaptation effect according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the drawings and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present invention more apparent.
Aiming at the problems that in the prior art, audio signal transmission exists between vehicle analog audio transmission modules in the development process of a cabin system, common audio test is only carried out on the test of a certain module, but the audio relation between the modules cannot be tested, and meanwhile, when an audio channel is matched, a management and control method is insufficient, so that the final output sound of a sound output module is too small, and the use feeling of a user is influenced, the invention provides a test method, a test device and an automobile for the audio channel adaptation effect.
As shown in fig. 1, a method for testing an audio path adaptation effect according to an embodiment of the present invention includes:
In the embodiment of the invention, the volume is adapted to the vehicle sound output module by calculating the gain of the signal of the first analog audio transmission module of the vehicle by the second analog audio transmission module of the vehicle and the peak-to-peak value Vpp1 of the first audio signal V1 of the first analog audio transmission module, and finally the adaptation effect of the audio channel between the modules is judged according to the volume output by the vehicle sound output module. The method and the device solve the problem that in the prior art, the audio test is only aimed at the test of a certain module, but the audio relation among the modules cannot be tested. The stability of the sound output of the vehicle sound output module is ensured.
It should be noted that, the first audio signal V1 and the second audio signal V2 are both 1KHz audio signals or 20Hz-20KHz sweep audio signals.
Optionally, the step 200 includes:
the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal is represented by the formula: gain = 20log (V2/V1).
Optionally, step 300 includes:
step 301 measures a peak-to-peak value Vpp1 of the first audio signal V1 and a peak-to-peak value Vpp2 of the second audio signal V2.
Step 302, performing different levels of volume adaptation on the vehicle sound output module according to the peak-to-peak value Vpp1 of the first audio signal V1 and the gain of the second audio signal V2 on the first audio signal V1.
The peak-to-peak value is the difference between the highest value and the lowest value of the signal in one period.
Optionally, the performing volume adaptation of different levels on the vehicle sound output module includes:
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a first preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a first preset gain value, adapting a first volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a second preset peak-to-peak value, and the gain of the vehicle analog audio transmission module to the signal of the vehicle first analog audio transmission module is greater than or equal to a second preset gain value, adapting a second volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a third preset peak-to-peak value, and the gain of the vehicle analog audio transmission module to the signal of the vehicle first analog audio transmission module is greater than or equal to a third preset gain value, adapting a third volume to the vehicle sound output module;
wherein the first volume is less than the second volume, and the second volume is less than the third volume.
As shown in fig. 2, in an embodiment of the present invention, the first analog audio transmission module of the vehicle is a vehicle telematics system T-BOX, the second analog audio transmission module of the vehicle is an integrated cabin controller ICC, and the vehicle sound output module is a speaker.
In the above embodiment, a method for testing an audio path adaptation effect includes:
the oscilloscope probe acquires a standard first audio signal V1 for testing, which is sent to the integrated cabin controller by the vehicle-mounted remote information processing system T-BOX, and a standard second audio signal V2 for testing, which is sent to the loudspeaker by the integrated cabin controller;
obtaining the gain of the integrated cabin controller to the vehicle-mounted remote information processing system T-BOX signal according to the first audio signal V1 and the second audio signal V2;
according to the gain of the integrated cabin controller to the T-BOX signal of the vehicle-mounted remote information processing system, the volume is adapted to the loudspeaker;
it should be noted that the oscilloscope may be replaced by an analog audio analyzer, and the audio gain value may be digitally acquired and automatically calculated.
Optionally, the first audio signal V1 and the second audio signal V2 are both 1KHz audio signals or 20Hz-20KHz sweep audio signals.
Optionally, the obtaining the gain of the integrated cabin controller to the on-board telematics system T-BOX signal according to the first audio signal V1 and the second audio signal V2 includes:
the gain of the integrated cabin controller to the vehicle telematics system T-BOX signal is calculated by the formula: gain = 20log (V2/V1).
Optionally, before the adapting the volume to the loudspeaker according to the gain of the integrated cabin controller to the vehicle-mounted telematics system T-BOX signal, the method further includes:
the peak-to-peak value Vpp1 of the first audio signal V1 and the peak-to-peak value Vpp2 of the second audio signal V2 are measured.
Optionally, the adapting the volume to the loudspeaker according to the gain of the integrated cabin controller to the vehicle-mounted telematics system T-BOX signal includes:
and according to the peak-to-peak value Vpp1 of the first audio signal V1 and the gain of the second audio signal V2 to the first audio signal V1, performing different levels of volume adaptation on the loudspeaker.
Optionally, the performing different levels of volume adaptation on the horn includes:
if the peak value Vpp1 of the first audio signal V1 is greater than or equal to a first preset peak value, and the gain of the integrated cabin controller to the vehicle-mounted telematics system T-BOX signal is greater than or equal to a first preset gain value, adapting a first volume to the loudspeaker;
if the peak value Vpp1 of the first audio signal V1 is greater than or equal to a second preset peak value, and the gain of the vehicle analog audio transmission module to the vehicle-mounted telematics system T-BOX signal is greater than or equal to a second preset gain value, adapting a second volume to the loudspeaker;
if the peak value Vpp1 of the first audio signal V1 is greater than or equal to a third preset peak value, and the gain of the vehicle analog audio transmission module to the vehicle-mounted telematics system T-BOX signal is greater than or equal to a third preset gain value, adapting a third volume to the loudspeaker;
wherein the first volume is less than the second volume, and the second volume is less than the third volume.
And finally, obtaining a test result of the audio channel adaptation effect according to the volume.
It should be noted that, the test result of performing different levels of volume adaptation on the loudspeaker and finally obtaining the audio channel adaptation effect according to the volume may be quantized and calculated by using a digital signal analysis device to analyze a digital signal audio channel.
As shown in fig. 3, an embodiment of the present invention further provides a device for testing an audio path adaptation effect, including:
the acquisition module 10 is configured to acquire a first audio signal V1 sent by the first analog audio transmission module of the vehicle to the second analog audio transmission module of the vehicle and a second audio signal V2 sent by the second analog audio transmission module of the vehicle to the vehicle sound output module;
a calculation module 20, configured to obtain a gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal according to the first audio signal V1 and the second audio signal V2;
the adaptation module 30 is configured to adapt the volume to the vehicle sound output module according to the gain of the vehicle second analog audio transmission module to the signal of the vehicle first analog audio transmission module.
Specifically, the computing module 20 includes:
the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal is represented by the formula: gain = 20log (V2/V1).
Specifically, the adaptation module 30 includes:
the peak-to-peak value Vpp1 of the first audio signal V1 and the peak-to-peak value Vpp2 of the second audio signal V2 are measured.
And according to the peak-to-peak value Vpp1 of the first audio signal V1 and the gain of the second audio signal V2 to the first audio signal V1, performing different levels of volume adaptation on the vehicle sound output module.
Optionally, the performing volume adaptation of different levels on the vehicle sound output module includes:
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a first preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a first preset gain value, adapting a first volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a second preset peak-to-peak value, and the gain of the vehicle analog audio transmission module to the signal of the vehicle first analog audio transmission module is greater than or equal to a second preset gain value, adapting a second volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a third preset peak-to-peak value, and the gain of the vehicle analog audio transmission module to the signal of the vehicle first analog audio transmission module is greater than or equal to a third preset gain value, adapting a third volume to the vehicle sound output module;
wherein the first volume is less than the second volume, and the second volume is less than the third volume.
The embodiment of the invention also provides a tester for the audio channel adaptation effect, which comprises the following steps:
and a processor, a memory, where the memory stores a program executable by the processor, where the processor implements the steps of the method as described above when the processor executes the program.
The embodiment of the invention also provides an automobile, which comprises the device for testing the audio channel adaptation effect.
In the embodiment of the invention, the volume is adapted to the vehicle sound output module by calculating the gain of the signal of the first analog audio transmission module of the vehicle by the second analog audio transmission module of the vehicle and the peak-to-peak value Vpp1 of the first audio signal V1 of the first analog audio transmission module, and finally the adaptation effect of the audio channel between the modules is judged according to the volume output by the vehicle sound output module. The method and the device solve the problem that in the prior art, the audio test is only aimed at the test of a certain module, but the audio relation among the modules cannot be tested. The stability of the sound output of the vehicle sound output module is ensured.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes are intended to be within the scope of the present invention.
Claims (7)
1. A method for testing an adaptation effect of an audio path, comprising:
acquiring a first audio signal V1 sent to a second analog audio transmission module of a vehicle by a first analog audio transmission module of the vehicle and a second audio signal V2 sent to a sound output module of the vehicle by the second analog audio transmission module of the vehicle;
obtaining the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal according to the first audio signal V1 and the second audio signal V2;
according to the gain of the second analog audio transmission module of the vehicle to the signal of the first analog audio transmission module of the vehicle, the volume is adapted to the sound output module of the vehicle;
the method further comprises the following steps before the vehicle sound output module is adapted to the sound volume according to the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal:
measuring the peak-to-peak value Vpp1 of the first audio signal V1
The adapting the volume of the sound to the vehicle sound output module according to the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal includes:
according to the peak-to-peak value Vpp1 of the first audio signal V1 and the gain of the second audio signal V2 to the first audio signal V1, performing different levels of volume adaptation on the vehicle sound output module;
the performing different levels of volume adaptation on the vehicle sound output module includes:
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a first preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a first preset gain value, adapting a first volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a second preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a second preset gain value, adapting a second volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a third preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a third preset gain value, adapting a third volume to the vehicle sound output module;
wherein the first volume is less than the second volume, and the second volume is less than the third volume.
2. The method for testing an audio path adaptation effect according to claim 1, wherein the first audio signal V1 and the second audio signal V2 are standard audio signals for testing.
3. The method for testing an audio path adaptation effect according to claim 1, wherein the obtaining the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal according to the first audio signal V1 and the second audio signal V2 includes:
the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal is represented by the formula: gain=20 lg (V2/V1).
4. The method of claim 1, wherein the peak-to-peak value is a difference between a highest value and a lowest value of a signal in one period.
5. A test device for an audio path adaptation effect, comprising:
the acquisition module is used for acquiring a first audio signal V1 sent to the second analog audio transmission module by the first analog audio transmission module of the vehicle and a second audio signal V2 sent to the sound output module of the vehicle by the second analog audio transmission module of the vehicle;
the computing module is used for obtaining the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal according to the first audio signal V1 and the second audio signal V2;
the adaptation module is used for adapting the volume to the vehicle sound output module according to the gain of the vehicle second analog audio transmission module to the signal of the vehicle first analog audio transmission module;
the adaptation module comprises:
measuring a peak-to-peak value Vpp1 of the first audio signal V1;
according to the peak-to-peak value Vpp1 of the first audio signal V1 and the gain of the second audio signal V2 to the first audio signal V1, performing different levels of volume adaptation on the vehicle sound output module;
the performing different levels of volume adaptation on the vehicle sound output module includes:
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a first preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a first preset gain value, adapting a first volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a second preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a second preset gain value, adapting a second volume to the vehicle sound output module;
if the peak-to-peak value Vpp1 of the first audio signal V1 is greater than or equal to a third preset peak-to-peak value, and the gain of the vehicle second analog audio transmission module signal to the vehicle first analog audio transmission module is greater than or equal to a third preset gain value, adapting a third volume to the vehicle sound output module;
wherein the first volume is less than the second volume, and the second volume is less than the third volume.
6. A tester of audio path adaptation effects, comprising:
a processor, a memory, on which a program is stored which is executable by the processor, when executing the program, implementing the steps of the method according to any one of claims 1 to 4.
7. An automobile comprising the audio path adaptation effect test apparatus according to claim 5.
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| JP2010141571A (en) * | 2008-12-11 | 2010-06-24 | Nec Saitama Ltd | Volume control method, audio signal reproduction device, and program |
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| CN102571011A (en) * | 2011-12-15 | 2012-07-11 | 无锡中星微电子有限公司 | Method and device for adjusting sound volume |
| CN106453838A (en) * | 2016-09-12 | 2017-02-22 | 北京小米移动软件有限公司 | Method and apparatus for adjusting volume |
| CN106714038A (en) * | 2016-12-27 | 2017-05-24 | 维沃移动通信有限公司 | Sound loudness control method and mobile terminal |
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