Method and system for voice separation based on degenerate unmixing estimation technique

A technology of speech separation and technology, applied in speech analysis, instruments, etc., can solve problems such as failure to meet requirements

Pending Publication Date: 2021-09-24
HARMAN INT IND INC
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Problems solved by technology

[0004] In addition, the DUET algorithm usually requires time synchronization of the source, which may not be met by traditional time synchronization methods, because the sampling frequency of the microphone may be as high as tens of kilohertz or higher, and the system time is usually measured in milliseconds

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  • Method and system for voice separation based on degenerate unmixing estimation technique
  • Method and system for voice separation based on degenerate unmixing estimation technique
  • Method and system for voice separation based on degenerate unmixing estimation technique

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Embodiment Construction

[0027] Hereinafter, preferred embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. In the following description of the present disclosure, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure unclear.

[0028] The present disclosure provides a DUET-based voice separation method and system. figure 1 It is a flowchart of a DUET-based speech separation method. The method can be used in various environments, such as carriages, offices, homes, shopping malls, kiosks, stations, and the like.

[0029] Such as figure 1 As shown, a microphone (two microphones are shown as an example) receives and samples sound, which may include multiple sources. The sampling frequency of the microphone can be in the order of kilohertz, tens of kilohertz or even higher. A higher sampling frequency will benefit the separation process...

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Abstract

A method and system for voice separation based on DUET algorithm is disclosed. The method comprises: receiving signals from microphones; performing a Fourier transform on the received signals (S110); calculating a relative attenuation parameter and a relative delay parameter for each data point (S120); selecting a clustering range for the relative delay parameters based on a distance between the microphones and a sampling frequency of the microphones, clustering the data points within the clustering range for the relative delay parameters into subsets (S130), and performing an inverse Fourier transform on each subsets (S140). It provides an efficient and intelligent solution to deploy DUET on the software and / or hardware.

Description

technical field [0001] The present disclosure relates to speech processing, and more particularly to speech separation methods and systems based on the Degenerate Separation Estimation Technique (DUET) algorithm. Background technique [0002] Due to the increasing demands of smart lifestyles and connected cars, voice separation has become ubiquitous in the industry as a key part of human-machine interaction systems. There are mainly two methods of speech separation, one of which is to use a microphone array to achieve speech enhancement, and the other is to use blind source separation algorithms such as Frequency Domain Independent Component Analysis (FDICA), Degenerate Separation Estimation Technique (DUET) algorithm Or their extended algorithms. [0003] The DUET algorithm can separate any number of sources using only two mixes, which is ideal for speech separation in a relatively small space. This technique works even when the number of sources is greater than the numbe...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0272
CPCG10L21/0272G10L21/0308G10L21/055G10L21/06
Inventor 谢由页毕相如张青山张国霞
Owner HARMAN INT IND INC
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