Colored noise-based voice enhancement method

A speech enhancement and colored noise technology, applied in the field of signal processing, can solve the problems of speech intelligibility reduction, noise filtering and damage to speech signals, etc., to achieve the effect of ensuring intelligibility, easy implementation, and simple method

Inactive Publication Date: 2017-11-03
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0006] In view of this, the embodiment of the present invention provides a speech enhancement method based on colored noise for the technical problem that the speech signal will be damaged while filtering the noise during the speech enhancement process, resulting in a decrease in speech intelligibility.

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  • Colored noise-based voice enhancement method
  • Colored noise-based voice enhancement method
  • Colored noise-based voice enhancement method

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0059] Step 1: Establish a dual-microphone array, re...

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Abstract

The invention provides a speech enhancement method based on colored noise. By establishing a dual-microphone array, two channels of noisy speech signals are obtained, and the covariance matrix of the noisy speech signal data is subjected to eigenvalue decomposition, and the noisy speech signal space It is divided into signal subspace and noise subspace. The relatively pure speech processing signal is obtained by subspace method processing, and then combined with the minimum mean square error estimation algorithm, the enhanced speech is obtained. This voice enhancement method is suitable for the dual-mic array of smart home. It not only has a good noise reduction effect on noise, but also achieves minimum distortion on voice damage, ensuring the intelligibility of pure voice to the greatest extent. In addition, the method not only has a good noise reduction effect on the synthesized noisy speech, but also has a good noise reduction effect on the actual noisy speech.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a colored noise-based speech enhancement method. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, users have put forward higher demands on the living environment, and pay more and more attention to the comfort, safety and convenience of home life. Smart home aims to integrate computer, automation control, artificial intelligence and network communication technologies, and connect various equipment terminals in the home environment, such as lighting equipment, audio and video equipment, security systems, network appliances and other home networks. , to realize the intelligent control of the home environment. [0003] Voice is the most convenient way of interaction between people. Intelligent voice technology has great innovative significance for changing the control methods of TV, speakers, li...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/02G10L21/0208G10L21/0216
CPCG10L21/02G10L21/0208G10L21/0216G10L2021/02082G10L2021/02166
Inventor 郑康丽
Owner XIAMEN UNIV OF TECH
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