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Speech enhancement method

A technology of speech enhancement and sound frame, which is applied in speech analysis, sound-generating devices, instruments, etc., and can solve problems such as large amount of computation and inability to use mobile devices

Active Publication Date: 2013-03-27
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of technology requires a large amount of calculations, and usually cannot be used on mobile devices with limited computing resources

Method used

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Embodiment Construction

[0026] The direction explored by the present invention here is a speech enhancement method. In order to provide a thorough understanding of the present invention, detailed steps will be set forth in the following description. Obviously, the practice of the invention is not limited to specific details familiar to those skilled in the art of the invention. In other instances, well known steps have not been described in detail in order not to unnecessarily limit the invention. The preferred embodiments of the present invention will be described in detail as follows, but in addition to these detailed descriptions, the present invention can also be widely implemented in other embodiments and the scope of the present invention is not limited, it is based on the scope of the following claims .

[0027] figure 1 A schematic diagram showing a speech enhancement system according to an embodiment of the present invention. Such as figure 1 As shown, the speech enhancement system 100 ...

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Abstract

A speech enhancement method is disclosed. The method includes the steps of: receiving a plurality of frames of sound signals by a microphone array; calculating an inter-aural time difference for each frequency band of each frame of the sound signals corresponding to at least one two-microphone set of the microphone array; calculating a plurality of values of cumulative histograms according to the calculated inter-aural time differences; determining a first inter-aural time difference threshold according to the calculated value of the cumulative histograms; and filtering the plurality of frames of sound signals according to the first inter-aural time difference threshold.

Description

technical field [0001] The present invention relates to speech enhancement technology. Background technique [0002] Speech enhancement technology is a method of filtering out unnecessary noise interference from a received speech signal to enhance the speech content. It can be used in voice communication, voice human-machine interface (user voice interface), voice input (voice input) and other various applications. In recent years, with the rapid development of various mobile devices, automotive electronics and robots, the probability of voice communication, voice input or voice human-computer interaction in an environment with noise interference is increasing. How to filter out noise to enhance voice content , Improving the quality of voice communication or voice human-computer interaction has become an important topic in this field. [0003] Generally speaking, the voice signal captured by the microphone includes a target sound source and an interference sound source. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/02
CPCG10L2021/02165G10L21/0208G10L21/0232G10L2021/02166H04R3/005G10K11/175H04R1/406G10L21/04
Inventor 廖宪正
Owner IND TECH RES INST