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Network voice intercom method, device and system

A network voice and intercom device 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 echoes

Inactive Publication Date: 2014-07-02
ANKE SMART CITY TECH PRC
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  • Abstract
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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 intercom method, device and system to solve the problem of low call quality caused by echoes in network voice intercom

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  • Network voice intercom method, device and system
  • Network voice intercom method, device and system

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Embodiment Construction

[0028] 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.

[0029] 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 intercom method, device and system. The method comprises the following steps: data synchronization is performed on an audio stream recorded locally and an audio stream sent by the opposite end; the echo in the audio stream recorded locally is filtered by taking the audio stream sent by the opposite end as the reference audio stream; and the filtered audio stream is encoded and compressed and sent through a network. The method, device and system of the embodiments of the invention are used to perform data synchronization on the audio stream recorded locally and the audio stream sent by the opposite end and take the audio stream sent by the opposite end as the reference audio for filtering the echo, the encoding and decoding can be optimized, the echo can be eliminated, and the network voice intercom call quality can be improved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a network voice intercom method, device and system. 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 3G network, Internet voice calls on the android system are becoming more and more common. People can conduct normal voice intercom 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 requirements can be me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q5/24H04M9/08
Inventor 余焰罗世振陈兵刘文超
Owner ANKE SMART CITY TECH PRC
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