Voice noise reduction device

A voice noise reduction and noise reduction technology, used in voice analysis, instruments, etc., can solve the problem of not providing the near-end voice signal noise reduction function, and achieve the effect of reducing interference

Active Publication Date: 2010-10-06
ZGMICRO HEFEI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, various noise reduction devices usually only provide the noise reduction function of the far-end voice signal, but do not provide the noise reduction function of the near-end voice signal

Method used

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Embodiment Construction

[0030] The detailed description of the present invention directly or indirectly simulates the operation of the technical solution of the present invention mainly through programs, steps, logic blocks, processes or other symbolic descriptions. In the ensuing description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention may be practiced without these specific details. These descriptions and representations herein are used by those skilled in the art to effectively convey the substance of their work to others skilled in the art. In other words, for the purpose of avoiding obscuring the present invention, well-known methods, procedures, components and circuits have not been described in detail since they are readily understood.

[0031] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementa...

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Abstract

The invention discloses a voice noise reduction device, which comprises a remote voice noise reduction module and a local voice noise reduction module, wherein the remote voice noise reduction module provides a background noise reference signal for the local voice noise reduction module. The voice noise reduction device realizes the noise elimination of remote voice signals in a voice call by using the active noise reduction and elimination technology-based remote voice noise reduction module and realizes the noise elimination of local voice signals in the voice call by using the noise adaptive-filtering technology-based local voice noise reduction module so as to maximally reduce the interference of background noise to the speech quality of both a caller and a callee in the voice call. Due to the simple structure and easy implementation of the voice noise reduction device, a noise reduction micro earphone comprising a microphone can be realized.

Description

【Technical field】 [0001] The invention relates to noise elimination technology, in particular to a scheme for eliminating the negative influence of noise during voice communication. 【Background technique】 [0002] With the wide application of mobile Internet terminals such as mobile phones and network audio and video software, it is more and more convenient to realize calls anytime and anywhere between people. In view of the complexity and diversity of the call environment, people also It is more and more likely to be in a noisy environment, and the negative impact of noise in the call environment on the call quality is becoming more and more obvious. For example, in noisy streets, rooms, and squares, or in vehicles such as cars and trains, the negative impact of surrounding background noise on the call quality of both parties is sometimes very serious. For users of portable multimedia digital devices who wear earphones to listen to music, watch movies or play video games, ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/02
Inventor 张晨冯宇红
Owner ZGMICRO HEFEI LTD
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