Mixing processing method, device, equipment and storage medium for multi-channel voice signals

A voice signal and processing method technology, applied in voice analysis, instruments, etc., can solve problems such as affecting call quality, PCM overflow, high frequency part peak cutting distortion, etc., and achieve the requirements of simple algorithm implementation, low complexity, and excellent real-time performance. Effect

Active Publication Date: 2021-11-09
UNIONTECH SOFTWARE TECH CO LTD
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Problems solved by technology

In the prior art, the processing methods for sound mixing mainly include the following. The first is to adopt the linear superposition averaging method, which will cause excessive audio attenuation and affect the call quality; the second is to use the normalized sound mixing method, This method is to directly add the audio PCM signals of the same sampling rate, which will cause the PCM overflow problem after superimposition, and cause peak cutting distortion in the high frequency part

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  • Mixing processing method, device, equipment and storage medium for multi-channel voice signals
  • Mixing processing method, device, equipment and storage medium for multi-channel voice signals
  • Mixing processing method, device, equipment and storage medium for multi-channel voice signals

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[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] figure 1 is a block diagram of an example computing device 100 . In a basic configuration 102 , computing device 100 typically includes system memory 106 and one or more processors 104 . A memory bus 108 may be used for communication between the processor 104 and the system memory 106 .

[0026] Depending on the desired configuration, processor 104 may be any type of processing including, but not limited to, a microprocess...

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Abstract

The invention discloses a multi-channel voice signal mixing processing method, comprising the steps of: obtaining the sum value after the multi-channel voice signal is mixed, and the sum value after the multi-channel voice signal is mixed is one of the PCM values ​​of the multi-channel voice signal The maximum value of the sum; when the number of coded digits of the sum value after the multi-channel voice signal is mixed exceeds the set digit threshold, calculate the first scale factor; use the first scale factor to clamp the mixed signal of the multi-channel voice signal processing, obtaining the first clamping signal; when the encoding number of the first clamping signal exceeds the set number of digits threshold, calculate the second scaling factor, and use the second scaling factor to clamp the first clamping signal until The number of coding bits of the mixing signal of the multi-channel voice signal is lower than the set bit threshold. The invention also discloses a multi-channel voice signal mixing processing device, computing equipment and storage medium. The invention can guarantee the call quality after multi-channel voice mixing, and the algorithm is simple to realize, and has better real-time requirements.

Description

technical field [0001] The invention relates to the technical field of audio processing, in particular to a method, device, electronic equipment and storage medium for mixing and processing multi-channel voice signals. Background technique [0002] In recent years, with the gradual maturity of the development of information technology, the processing capability of computing equipment has also been greatly improved, enabling the realization of many complex applications, one of which is the related technology of mixing multiple audio signals. [0003] The principle of audio mixing is that the superposition of quantized speech signals is equivalent to the superposition of sound waves in the air. In the prior art, the processing methods for sound mixing mainly include the following. The first is to adopt the linear superposition averaging method, which will cause excessive audio attenuation and affect the call quality; the second is to use the normalized sound mixing method, Th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L19/00G10L19/008
CPCG10L19/00G10L19/008
Inventor 张旭东
Owner UNIONTECH SOFTWARE TECH CO LTD
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