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End-to-end audio signal communication conversion detection method

An audio signal, communication conversion technology, applied in voice analysis, two-way line system station, instrument, etc., can solve the problem of voice quality test only full-course acoustic test, electro-acoustic test method cannot be effectively tested, etc.

Pending Publication Date: 2021-03-12
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many digital end-to-end devices with no standard interface or non-standard transmission protocol or encryption technology. The existing electroacoustic test method cannot be used for effective testing, and only the end-to-end full-range acoustic signal test can be used.
Among them, taking the building intercom system as an example of residential security technology prevention products, because of the non-standard transmission protocol and non-standard interface, the test of its voice quality can only be carried out in the whole process of sound test

Method used

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  • End-to-end audio signal communication conversion detection method

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Experimental program
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specific Embodiment 1

[0040] see figure 2 As shown in the structure, before the first audio signal generator of the sending module produces a test signal, a pre-test signal group consisting of 9 pre-test signals is generated to test the performance of the audio channel. In this embodiment, the continuation of the pre-test signal The duration of the time and the test signal are both 248.62ms, the time interval between two adjacent pre-test signals and the time interval between the last pre-test signal and the test signal in the pre-test signal group are both 101.38ms, therefore, In this embodiment, the time of a group of test signals (including the time in the pre-test signal group and the time of the test signal) is 3398.62ms, and the first audio signal generator of the sending module has sent the pre-test in the pre-test signal group After the signal, a test signal group is sent, and the test signal group is equalized by the first artificial mouth, and then transmitted to the local walkie-talkie,...

specific Embodiment 2

[0042] see image 3 As shown in the structure, before the first audio signal generator of the sending module produces a test signal, a pre-test signal group consisting of 3 pre-test signals is generated to test the performance of the audio channel. In this embodiment, the duration of the pre-test signal The duration of the time and the test signal are both 248.62ms, the time interval between two adjacent pre-test signals and the time interval between the last pre-test signal and the test signal in the pre-test signal group are both 101.38ms, therefore, In this embodiment, the time of a group of test signals (including the time in the pre-test signal group and the time of the test signal) is 1298.62ms, and the first audio signal generator of the sending module sends the pre-test in the pre-test signal group After the signal group, a test signal is sent, and after being equalized by the first artificial mouth, the test signal is transmitted to the local walkie-talkie, and the lo...

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Abstract

The invention relates to the technical field of audio testing and provides an end-to-end audio signal communication conversion detection method. The method comprises the following steps that a test signal generated by a first audio signal generator is delayed for a first time to reach a receiving module; a second audio analyzer of the receiving module measures a first time period required when thesound amplitude from the feedback information sent by the receiving module to the audio channel is lower than a first preset value, calculates conversion time according to the first time period and first time delay, and judges whether the conversion performance is good or not according to the conversion time; according to the method, the conversion performance of the audio is effectively obtainedthrough the test, a problem of audio signal loss caused by advanced conversion or delayed conversion of conversion equipment is effectively avoided, the method is simple and easy to implement, efficiency is high, and reliability of the whole system is effectively improved.

Description

technical field [0001] The invention relates to the technical field of audio testing, in particular to an end-to-end audio signal communication conversion detection method. Background technique [0002] At present, there are many digital end-to-end devices with no standard interface or non-standard transmission protocol or encryption technology. The existing electro-acoustic test method cannot be used for effective testing, and only the end-to-end full-range acoustic signal test can be used. Among them, taking the building intercom system as an example of residential security technology and prevention products, because of the non-standard transmission protocol and non-standard interface, the voice quality test can only be tested in the whole process. For example, in a home building walkie-talkie, when the sending module requests information from the receiving module, the sending module needs to transmit the information to the receiving module through the system network of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L25/60H04Q5/24
CPCG10L25/60H04Q5/24
Inventor 戎玲鲍逸明王丽娟
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY