Audio data processing method, device and system
A technology of audio data and processing method, applied in interconnection devices, two-way sound reinforcement telephone systems, speech analysis, etc., can solve problems such as poor echo cancellation processing effect, and achieve the effect of improving processing effect
Active Publication Date: 2022-03-08
HANGZHOU HIKVISION DIGITAL TECH
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[0005] The present application provides an audio data processing method, device and system, which solves the problem of poor echo cancellation processing effect in the related art
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[0054] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.
[0055] Before explaining this application in detail, some terms and terms involved in this application will be explained first.
[0056] Echo: It means that the voice of one's own voice is transmitted to one's own ear after a period of time delay.
[0057] In an optional implementation, the echo phenomenon can be summarized as the sound played by the speaker of the near-end device is picked up by the microphone of the near-end device and sent back to the far-end device, so that the far-end user at the far end can hear own voice.
[0058] In another optional implementation, the echo phenomenon can also be summarized as the sound played by the speaker of the far-end device is picked up by the microphone of the far-end device and sen...
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The application discloses an audio data processing method, device and system, belonging to the technical field of audio processing. The method includes: judging whether there is a beat between the stored reference audio data and the collected audio data; if there is a beat, writing N blank audio data frames into the cache storing the reference audio data, and reading N A reference audio data frame, a blank audio data frame is an audio data frame with a volume of zero; N collected audio data frames are read, and echo cancellation processing is performed based on the N reference audio data frames and the N collected audio data frames. In the case that there is a beat between the reference audio data and the collected audio data, this application will eliminate the beat phenomenon by filling in the blank audio data with a volume of zero, and then perform echo cancellation processing so that only one of the parties participating in the call can hear The voice of the other party participating in the call effectively improves the processing effect of echo cancellation.
Description
technical field [0001] The present application relates to the technical field of audio processing, in particular to an audio data processing method, device and system. Background technique [0002] Echo Cancellation, also known as echo suppression, is a very important technology for voice equipment such as circuit phones, mobile phones, walkie-talkies, and VOIP (Voice over Internet Protocol, VoIP) to improve voice quality. Among them, echo essentially means that one's own voice is transmitted to one's own ears after a period of time delay. For example, the echo phenomenon can be summarized as the sound played by the speaker of the near-end device is picked up by the microphone of the near-end device and sent back to the far-end device, so that the far-end user at the far end can hear his own voice. [0003] For example, during the communication between the near-end device and the remote device, due to network fluctuations and other factors, the data sent by the remote devic...
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IPC IPC(8): G10L21/0208H04M9/08
CPCG10L21/0208H04M9/085G10L2021/02082
Inventor 王伟杰
Owner HANGZHOU HIKVISION DIGITAL TECH