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Noise elimination, voice recognition method and device

A technology of noise elimination and speech recognition, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of speech signal noise, reduce the reliability of noise reduction, and affect the sound quality, so as to improve sound quality, improve reliability, reduce cost effect

Active Publication Date: 2020-03-31
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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Problems solved by technology

[0003] However, if the distance between the signal source corresponding to the speech signal (for example: a person's mouth) and the two microphones changes, the speech signal may be determined as noise, so that the speech signal is also suppressed to the same degree as the noise signal , which seriously affects the sound quality after noise reduction, resulting in a reduction in the reliability of noise reduction

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  • Noise elimination, voice recognition method and device
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  • Noise elimination, voice recognition method and device

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Embodiment Construction

[0066] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0067] It should be noted that the terminals involved in the embodiments of the present invention may include, but are not limited to, mobile phones, personal digital assistants (Personal Digital Assistant, PDA), wireless handheld devices, tablet computers (Tablet Computer), personal computers (Personal Computer, PC ), MP3 players, MP4 players, we...

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Abstract

A noise elimination and voice recognition method, apparatus and device, and a non-volatile computer storage medium. In the noise elimination method, voice-print matching is performed on acquired original audio data to be processed based on a specific voice-print parameter (101), so that valid audio data can be acquired from the original audio data to be processed according to a voice-print matching result of the voice-print matching (102) without needing an additional sound collection apparatus to collect other sound signals, for example, a noise signal, etc. The present invention can avoid the problem that the same degree of suppression as the noise signal is performed on a voice signal which is caused by a change in the distance between a signal source corresponding to the voice signal and two microphones in the prior art, thereby improving the reliability of noise reduction, while being capable of effectively improving the sound quality after noise reduction.

Description

【Technical field】 [0001] The invention relates to noise processing technology, in particular to a noise elimination and voice recognition method and device. 【Background technique】 [0002] With the rapid development of sound processing technology, terminals have higher and higher requirements on the quality of sound to be processed, and noise reduction technology has emerged as the times require. The current noise reduction technology mainly uses dual microphones to actively reduce noise. Through a certain algorithm, the audio data collected by one microphone (that is, corresponding to the noise signal and the voice signal with weak signal strength) is used to compare the audio data collected by the other microphone. (that is, corresponding to the noise signal and the speech signal with strong signal strength), noise suppression processing is performed. [0003] However, if the distance between the signal source corresponding to the speech signal (for example: a person's mo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0208G10L17/04
CPCG10L15/20G10L21/0208
Inventor 李士岩
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD