CN112652327A - Method and device for testing adaptation effect of audio channel and automobile - Google Patents
Method and device for testing adaptation effect of audio channel and automobile Download PDFInfo
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
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- G—PHYSICS
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- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention provides a method and a device for testing the adaptation effect of an audio channel and an automobile, and relates to the field of testing the adaptation effect of the audio channel. The method for testing the adaptation effect of the audio channel comprises the steps of obtaining a first audio signal V1 sent by a first vehicle analog audio transmission module to a second vehicle analog audio transmission module and a second audio signal V2 sent by the second vehicle analog audio transmission module to a vehicle sound output module; obtaining a gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal based on the first audio signal V1 and the second audio signal V2; and according to the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal, adapting the volume to a vehicle sound output module. The audio test is avoided, the audio relation between modules cannot be tested only aiming at the test of a certain module, and the stability of the vehicle sound output is ensured.
Description
Technical Field
The invention relates to the field of testing of audio channel adaptation effects, in particular to a method and a device for testing audio channel adaptation effects and an automobile.
Background
Today, the technology is rapidly developed, automobiles become indispensable vehicles for outgoing, but through development of many years, people have requirements on automobiles which are not only vehicles but also endowed with more functions. Such as the transmission of audio and the output of sound.
In the development process of a cabin system, a common audio test only aims at the test of a certain module, and the audio relation between the modules cannot be tested, audio signal transmission exists between vehicle simulation audio transmission modules, and a control method is not quantized enough when audio channels are matched, so that finally output sound of a 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 and a device for testing the adaptation effect of an audio channel and an automobile, and aims to solve the problems that in the prior art, in the development process of a cabin system, the signal transmission of audio is carried out between analog audio transmission modules of the automobile, the audio relation between the modules cannot be tested only by testing one module through common audio tests, and meanwhile, the final output sound of a sound output module is too small and the use feeling of a user is influenced due to the fact that a control method is not quantized enough when the audio channel is matched.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for testing the adaptation effect of an audio channel comprises the following steps:
acquiring a first audio signal V1 sent by a first vehicle analog audio transmission module to a second vehicle analog audio transmission module and a second audio signal V2 sent by the second vehicle analog audio transmission module to a vehicle sound output module;
obtaining a gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal based on the first audio signal V1 and the second audio signal V2;
and according to the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal, adapting the volume to a vehicle sound output module.
Further, the first audio signal V1 and the second audio signal V2 are both standard audio signals for testing.
Further, said obtaining a gain of said vehicle second analog audio transmission module to said vehicle first analog audio transmission module signal from said first audio signal V1 and said second audio signal V2 comprises:
the gain of the vehicle second analog audio transmission module on the vehicle first analog audio transmission module signal is given by the formula: the gain was 20log (V2/V1).
Further, before adapting the volume 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, 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, said adapting the volume to the vehicle sound output module based on the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal comprises:
different levels of volume adaptation are performed on the vehicle sound output module depending on 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.
Further, the peak-to-peak value is a difference value between a highest value and a lowest value of the signal in one period.
Further, the adapting the volume of the vehicle sound output module at different levels 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 to the vehicle first analog audio transmission module signal 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 vehicle first analog audio transmission module signal 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 predetermined peak-to-peak value and the gain of the vehicle analog audio transmission module to the vehicle first analog audio transmission module signal is greater than or equal to a third predetermined 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.
An embodiment of the present invention further provides a device for testing an adaptation effect of an audio channel, including:
the acquisition module is used for acquiring a first audio signal V1 sent by a first vehicle analog audio transmission module to a second vehicle analog audio transmission module and a second audio signal V2 sent by the second vehicle analog audio transmission module to a vehicle sound output module;
a calculation module for obtaining a gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal from the first audio signal V1 and the second audio signal V2;
and the adaptation module is used for adapting the volume of the vehicle sound output module according to the gain of the vehicle second analog audio transmission module on the signal of the vehicle first analog audio transmission module.
An embodiment of the present invention further provides a tester for an audio channel adaptation effect, including:
the processor and the memory are stored with programs executable by the processor, and when the processor executes the programs, the steps of the method are realized.
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 at least has the following technical effects:
in the embodiment of the invention, the gain of the vehicle first analog audio transmission module signal is calculated by the vehicle second analog audio transmission module and the peak-to-peak value Vpp1 of the first audio signal V1 of the first analog audio transmission module, the volume is adapted to the vehicle sound output 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 problem that the audio test in the prior art only aims at the test of a certain module and cannot test the audio relation between the modules is solved. The stability of the sound output of the vehicle sound output module is ensured.
Drawings
FIG. 1 is a schematic diagram illustrating steps of a method for testing an audio channel adaptation effect according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a method for testing the adaptation effect of an audio channel according to an embodiment of the present invention;
fig. 3 is a block diagram of an apparatus for testing an audio channel adaptation effect according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The invention provides a method and a device for testing the adaptation effect of an audio channel and an automobile, and aims to solve the problems that in the prior art, in the development process of a cabin system, audio signals are transmitted between vehicle analog audio transmission modules, common audio tests only aim at the test of a certain module, the audio relation between the modules cannot be tested, and meanwhile, the final output sound of a sound output module is too small due to the fact that a control method is not quantized enough when the audio channel is matched, and the use experience of a user is influenced.
As shown in fig. 1, the method for testing the adaptation effect of the audio channel according to the embodiment of the present invention includes:
In the embodiment of the invention, the gain of the vehicle first analog audio transmission module signal is calculated by the vehicle second analog audio transmission module and the peak-to-peak value Vpp1 of the first audio signal V1 of the first analog audio transmission module, the volume is adapted to the vehicle sound output 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 problem that the audio test in the prior art only aims at the test of a certain module and cannot test the audio relation between the modules is solved. 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 on the vehicle first analog audio transmission module signal is given by the formula: the gain was 20log (V2/V1).
Optionally, step 300, comprises:
step 301, measuring 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.
It should be noted that the peak-to-peak value is a difference between a highest value and a lowest value of a signal in a period.
Optionally, the adapting the volume of the vehicle sound output module at different levels 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 to the vehicle first analog audio transmission module signal 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 vehicle first analog audio transmission module signal 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 predetermined peak-to-peak value and the gain of the vehicle analog audio transmission module to the vehicle first analog audio transmission module signal is greater than or equal to a third predetermined 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 vehicle analog audio transmission module is an in-vehicle telematics system T-BOX, the second vehicle analog audio transmission module is an integrated cabin controller ICC, and the vehicle sound output module is a speaker.
In the foregoing embodiment, a method for testing an audio channel adaptation effect includes:
the method comprises the steps that an oscilloscope probe acquires a test standard first audio signal V1 sent to an integrated cockpit controller by a vehicle-mounted telematics system T-BOX and a test standard second audio signal V2 sent to a loudspeaker by the integrated cockpit controller;
obtaining a gain of the integrated cabin controller for the vehicle telematics system T-BOX signal from the first audio signal V1 and the second audio signal V2;
according to the gain of the integrated cockpit controller to the T-BOX signal of the vehicle-mounted telematics system, the volume is adapted to a loudspeaker;
it should be noted that the oscilloscope may be replaced by an analog audio analyzer, and the digital acquisition and automatic calculation are performed on the audio gain value.
Optionally, the first audio signal V1 and the second audio signal V2 are both 1KHz audio signals or 20Hz-20KHz sweep audio signals.
Optionally, said obtaining a gain of said integrated cabin controller for said in-vehicle telematics system T-BOX signal from said first audio signal V1 and said second audio signal V2 comprises:
the gain of the integrated cockpit controller to the onboard telematics system T-BOX signal is given by the formula: the gain was 20log (V2/V1).
Optionally, before the adapting the volume to the speaker according to the gain of the integrated cabin controller to the vehicle 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 horn according to the gain of the integrated cabin controller to the vehicle telematics system T-BOX signal includes:
different levels of volume adaptation are made to the loudspeaker depending on the peak-to-peak value Vpp1 of the first audio signal V1 and the gain of the second audio signal V2 over the first audio signal V1.
Optionally, the performing different levels of volume adaptation on the horn 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 integrated cockpit controller to the vehicle telematics system T-BOX signal is greater than or equal to a first preset gain value, adapting a first volume to the horn;
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 vehicle telematics system T-BOX signal is greater than or equal to a second preset gain value, adapting a second volume to the speaker;
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 vehicle telematics system T-BOX signal is greater than or equal to a third preset gain value, adapting a third volume to the horn;
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 volume adaptation of different levels is performed on the speaker, and finally, the test result of the audio channel adaptation effect obtained according to the volume can be quantitatively calculated by analyzing the digital signal audio channel with a digital signal analysis device.
As shown in fig. 3, an embodiment of the present invention further provides a device for testing an audio channel adaptation effect, including:
the acquisition module 10 is used for acquiring a first audio signal V1 sent by a first vehicle analog audio transmission module to a second vehicle analog audio transmission module and a second audio signal V2 sent by the second vehicle analog audio transmission module to a vehicle sound output module;
a calculation module 20 for obtaining a gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal from 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 vehicle first analog audio transmission module signal.
Specifically, the calculation module 20 includes:
the gain of the vehicle second analog audio transmission module on the vehicle first analog audio transmission module signal is given by the formula: the gain was 20log (V2/V1).
In particular, the adaptation module 30 comprises:
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.
Different levels of volume adaptation are performed on the vehicle sound output module depending on 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.
Optionally, the adapting the volume of the vehicle sound output module at different levels 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 to the vehicle first analog audio transmission module signal 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 vehicle first analog audio transmission module signal 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 predetermined peak-to-peak value and the gain of the vehicle analog audio transmission module to the vehicle first analog audio transmission module signal is greater than or equal to a third predetermined 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.
An embodiment of the present invention further provides a tester for an audio channel adaptation effect, including:
the processor and the memory are stored with programs executable by the processor, and when the processor executes the programs, the steps of the method are realized.
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 gain of the vehicle first analog audio transmission module signal is calculated by the vehicle second analog audio transmission module and the peak-to-peak value Vpp1 of the first audio signal V1 of the first analog audio transmission module, the volume is adapted to the vehicle sound output 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 problem that the audio test in the prior art only aims at the test of a certain module and cannot test the audio relation between the modules is solved. The stability of the sound output of the vehicle sound output module is ensured.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. A method for testing the adaptation effect of an audio channel is characterized by comprising the following steps:
acquiring a first audio signal V1 sent by a first vehicle analog audio transmission module to a second vehicle analog audio transmission module and a second audio signal V2 sent by the second vehicle analog audio transmission module to a vehicle sound output module;
obtaining a gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal based on the first audio signal V1 and the second audio signal V2;
and according to the gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal, adapting the volume to a vehicle sound output module.
2. The method for testing the adaptation effect of an audio path as claimed in claim 1, wherein the first audio signal V1 and the second audio signal V2 are both standard audio signals for testing.
3. The method for testing the 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 comprises:
the gain of the vehicle second analog audio transmission module on the vehicle first analog audio transmission module signal is given by the formula: the gain was 20log (V2/V1).
4. The method for testing the adaptation effect of the audio channel according to claim 1, wherein before adapting the volume of 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, further comprising:
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.
5. The method for testing the audio channel adaptation effect according to claim 4, wherein the adapting the volume of 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 comprises:
different levels of volume adaptation are performed on the vehicle sound output module depending on 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.
6. The method for testing the adaptation effect of an audio channel according to claim 5, wherein the peak-to-peak value is a difference between a highest value and a lowest value of a signal in a period.
7. The method for testing the audio channel adaptation effect according to claim 5, wherein the adapting the volume of the vehicle sound output module at different levels comprises:
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 to the vehicle first analog audio transmission module signal 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 vehicle first analog audio transmission module signal 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 predetermined peak-to-peak value and the gain of the vehicle analog audio transmission module to the vehicle first analog audio transmission module signal is greater than or equal to a third predetermined 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.
8. An apparatus for testing the adaptation effect of an audio channel, comprising:
the acquisition module is used for acquiring a first audio signal V1 sent by a first vehicle analog audio transmission module to a second vehicle analog audio transmission module and a second audio signal V2 sent by the second vehicle analog audio transmission module to a vehicle sound output module;
a calculation module for obtaining a gain of the vehicle second analog audio transmission module to the vehicle first analog audio transmission module signal from the first audio signal V1 and the second audio signal V2;
and the adaptation module is used for adapting the volume of the vehicle sound output module according to the gain of the vehicle second analog audio transmission module on the signal of the vehicle first analog audio transmission module.
9. A tester of audio path adaptation effects, comprising:
a processor, a memory, the memory having stored thereon a program executable by the processor, when executing the program, performing the steps of the method of any of claims 1 to 8.
10. An automobile, characterized by comprising a device for testing the audio path adaptation effect according to claim 8.
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