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Voice quality enhancement system

A technology to enhance system and voice quality, applied in voice analysis, instruments, etc., can solve the problem of not considering the influence of frequency band intelligibility, and achieve the effect of avoiding computational complexity, increasing energy ratio, and improving user experience

Inactive Publication Date: 2014-07-09
CHENGDU LINGTIAN KECHUANG INFORMATION TECH CO LTD
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

The noise estimation method can only detect random noise, and does not consider the influence of the energy adjustment of each frequency band on the intelligibility

Method used

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  • Voice quality enhancement system

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Embodiment Construction

[0020] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0021] The invention is used for enhancing the comfort and intelligibility of the voice played by the voice playing device in the noise environment. Such as figure 1 As shown, the voice quality enhancement system of the present invention includes a voice decoder, a time-domain adaptive gain control module, a real-time calculation module for target gain, an unvoiced audio spectrum adjustment module, a voiced audio spectrum adjustment module, an environmental noise collection and estimation module, and an audio output module, Speech decoder, target gain for real-time calculation module, unvoiced tone spectrum adjustment module, voiced tone spectrum adjustment module are all connected with time domain adaptive gain control module, target gain for real-time calculation module, voiced tone sp...

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Abstract

The invention discloses a voice quality enhancement system. The voice quality enhancement system comprises a voice decoder, a time-domain self-adaptation gain control module, a target gain real-time calculation module, a voiceless sound frequency spectrum adjustment module, a voiced sound frequency spectrum adjustment module, an environmental noise collection and estimation module and an audio output module, wherein the voice decoder, the target gain real-time calculation module, the voiceless sound frequency spectrum adjustment module and the voiced sound frequency spectrum adjustment module are connected with the time-domain self-adaptation gain control module, both the target gain real-time calculation module and the voiced sound frequency spectrum adjustment module are connected with the environmental noise collection and estimation module, and both the voiceless sound frequency spectrum adjustment module and the voiced sound frequency spectrum adjustment module are connected with the audio output module. According to the voice quality enhancement system, comfort and intelligibility of voices output by a voice output device in different environment are improved.

Description

technical field [0001] The invention relates to an enhancement system, in particular to a speech quality enhancement system. Background technique [0002] With the popularization of mobile communication devices such as mobile phones, people have the conditions to realize voice communication anytime and anywhere, either in a quiet environment, such as a bedroom or a hospital ward, or in a noisy environment. In mobile voice communication, such as when making a phone call through a mobile phone, the environmental noise usually fluctuates, and the noise characteristics vary greatly, such as bus noise, subway noise, street noise, bar music noise, etc., and the sound volume and frequency distribution are different. same. With the further development of wireless IP networks such as 3G, 4G and WIFI, wireless VoIP services are in full swing, and voice communication software on mobile devices such as mobile phones and tablet computers emerges in an endless stream, such as skype, Vibe...

Claims

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Application Information

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IPC IPC(8): G10L21/034G10L21/0364
Inventor 刘思远高尹忠程德杰王星冯文波
Owner CHENGDU LINGTIAN KECHUANG INFORMATION TECH CO LTD
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