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A voice signal processing method, device and system

A technology of speech signal processing and expected signal, which is applied in the field of data processing to achieve the effect of avoiding damage

Active Publication Date: 2020-05-08
MOBVOI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, an embodiment of the present invention provides a voice signal processing method, device, system, and storage medium to reduce the problem of system performance degradation caused by mutual interference of different signal processing algorithms

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  • A voice signal processing method, device and system
  • A voice signal processing method, device and system
  • A voice signal processing method, device and system

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Embodiment Construction

[0063] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] Embodiment 1 of the present invention provides a voice signal processing method, specifically as figure 1 with figure 2 As shown, the method includes:

[0065] Step 110: Perform echo cancellation processing on each of the at least two first desired signals according to the reference signal to obtain at least two first residual signals.

[0066] Specifically, it is assumed that there ar...

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Abstract

The embodiment of the invention specifically disclose a voice signal processing method, device and system. The method comprises the following steps: respectively carrying out echo elimination processing on each of at least two paths of first desired signals according to a first desired signal reference signal, so as to obtain at least two paths of first residual signals; carrying out reverberationelimination processing on each path of first residual signal to obtain at least two paths of second residual signals; carrying out reverberation elimination processing on the nth path of first desired signal by utilizing a reverberation elimination filter transfer function corresponding to the nth path of first residual signal, so as to obtain the nth path of second desired signal; taking all thesecond residual signals and all the second desired signals as inputs of a beam forming processing algorithm to carry out beam forming processing, so as to respectively obtain third residual signals and third desired signals, and obtaining second correlation coefficients between the third residual signals and the third desired signals; determining first correlation coefficients between the reference signal and the first desired signals; and carrying out echo suppression processing on the third residual signals according to the first correlation coefficients and the second correlation coefficients.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of data processing, and in particular to a voice signal processing method, device, system and storage medium. Background technique [0002] With the continuous development and innovation of smart voice devices, users have higher and higher requirements for smart voice devices. This is especially true for the authenticity and clarity of the signal. In order to obtain more real and clear voice signals, commonly used signal processing technologies are echo cancellation, echo suppression, reverberation suppression, and beamforming technologies. Especially in the application scenario of multi-channel speech signal processing based on the microphone array, these several technologies need to be combined and applied. The traditional combination method is to cascade echo cancellation, echo suppression, weighted prediction error, and beamforming technologies in sequence. However, nonlinear ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0208G10L21/0216G10L21/0264
Inventor 李勤李楠付聪
Owner MOBVOI INFORMATION TECH CO LTD
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