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Network voice synchronous de-noising communication device

A communication device and network voice technology, applied in the field of communication, can solve the problem of low call quality, achieve the effects of optimizing codec, improving the quality of intercom calls, and eliminating echo

Inactive Publication Date: 2016-05-18
HEFEI VRVIEW INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the technical problem to be solved by the present invention is to provide a network voice synchronous noise canceling communication device to solve the problem of low call quality caused by echoes in network voice intercoms

Method used

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  • Network voice synchronous de-noising communication device

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] In Internet voice intercom, echo and delay are the main factors affecting call quality. please participate figure 1 , on the A side, the human voice a is recorded through the microphone b, the speaker c plays the sound transmitted from the B end, part of the sound e played by the c is also recorded by the microphone b, and the sound e is the echo, so that the sound e and the sound a are both transmitted to the On the B side, the sound played by the speaker j includes the human voice a and the sound e, and the sound e is transmitted from the B en...

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Abstract

The invention discloses a network voice synchronous de-noising communication device comprising a synchronizing module, an echo-eliminating module, an audio-encoding module, and a transmitting module. The synchronizing module is used for synchronizing data of a locally-recorded audio stream and an audio stream transmitted from an opposite end. The echo-eliminating module filters an echo in the locally-recorded audio stream by using the audio stream transmitted from the opposite end as a reference audio stream. The audio-encoding module is used for performing coding compression on the filtered audio stream. The transmitting module is used for transmitting the audio stream subjected to the coding compression via a network. The network voice synchronous de-noising communication device has advantages of synchronizing the data of the locally-recorded audio stream and the audio stream transmitted from the opposite end, using the audio stream transmitted from the opposite end as a reference audio stream for filtering the echo, optimizing encoding and decoding and eliminating the echo, and increasing the talkback quality of network voice.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a network voice synchronous noise-canceling communication device. Background technique [0002] With the continuous development of science and technology, people's requirements for life are getting higher and higher, and the connection between each other is more frequent. With the wide application of android system and 4G network, network voice calls on the android system are becoming more and more common. People can carry out normal voice intercom communication through Ethernet, and a free, convenient, clear and smooth communication system is a direction for the development of network voice communication today. At present, there are some more mature applications on the Android system, which can meet the intercom requirements, but basically they are charged, and rarely can achieve real-time, noise-free, smooth calls. The user experience is not very satisfactory, but these r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M9/08H04L7/00
CPCH04M9/08H04L7/00
Inventor 陈拥权李建中郑荣稳鲁加旺
Owner HEFEI VRVIEW INFORMATION TECH
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