Echo signal processing method, device and computer storage medium

A processing method and echo signal technology, applied in telephone communication, two-way sound reinforcement telephone system, voice analysis, etc., can solve the problems of uncertain output voice data time extension, time delay jitter of voice data collection and output voice data, etc.

Active Publication Date: 2021-09-10
ZHEJIANG DAHUA TECH CO LTD
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Problems solved by technology

However, due to the uncertainty of the amount of data in the output buffer area, the collected voice data in the input buffer area can only be output after the voice data in the buffer area reaches a certain threshold, which makes the output time of the voice data uncertain, resulting in a gap between the collection of voice data and the output of the voice data. time delay jitter

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  • Echo signal processing method, device and computer storage medium
  • Echo signal processing method, device and computer storage medium
  • Echo signal processing method, device and computer storage medium

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0031] This application proposes a processing method for echo signals, for details, please refer to figure 2 , figure 2 It is a schematic flowchart of an embodiment of the echo signal processing method provided by the present application. The echo signal processing method in this embodiment can be applied to an echo signal processing device, and can also be applied to a server with data processing capabilities. The echo signal processing metho...

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Abstract

The present application provides an echo signal processing method, device and computer storage device. Including: before receiving business voice data, input fixed voice data into the output buffer area, so that the data volume of the output buffer area remains above the threshold; output the first voice data output by the output buffer area and the second voice data collected by the microphone Voice data is echo-processed. The present application effectively eliminates the echo between the first voice data and the second voice data, and avoids the influence of the echo on the call quality.

Description

technical field [0001] The present application relates to the technical field of voice communication, in particular to an echo signal processing method, device and computer storage medium. Background technique [0002] Whether it is a voice intercom or voice recognition scenario, echo performance is an important indicator that affects the quality of voice calls and recognition. Echo is divided into hardware circuit echo and acoustic echo. Circuit echo can be eliminated through rational design of hardware equipment, while the path of acoustic echo is complex and changeable. figure 1 is a schematic diagram of acoustic echo generation, such as figure 1 As shown, the far-end voice signal comes out of the earpiece, passes through the air or other media to the near-end user's microphone, and then is recorded by the microphone and then re-transmits to the far-end user's earpiece to form an echo. [0003] In the prior art, in order to eliminate the impact of the echo on the call ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M9/08G10L21/0208
CPCG10L21/0208G10L2021/02082H04M9/08H04M9/085
Inventor 黄景标俞骏燊林聚财
Owner ZHEJIANG DAHUA TECH CO LTD
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