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Processing method and processing device for voice enhancement

A technology of speech enhancement and processing method, which is applied in the direction of speech analysis and instruments, etc., which can solve the problems of partial speech damage, inability to fully train the adaptive filter, and inability to correctly observe the characteristics of the echo, so as to improve the speech quality, The effect of improving voice quality

Active Publication Date: 2012-09-05
XFUSION DIGITAL TECH CO LTD
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AI Technical Summary

Problems solved by technology

For example, two echo cancellations are connected in series (in tandem), and the voice signal with echo is processed by the first EC and then passed to the second EC module. At this time, the second EC will not be able to correctly observe the characteristics of the echo. Therefore, it is impossible to fully train its internal adaptive filter and control its internal nonlinear processing (NLP, Non-linear Processing) module, which may cause false damage to speech
For another example, two noise reductions (NR, Noise Reduction) are connected in series, the speech signal with noise is first processed by the first NR, and then the second NR processing. At this time, excessive suppression may occur, resulting in the speech part of the signal damaged

Method used

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  • Processing method and processing device for voice enhancement
  • Processing method and processing device for voice enhancement
  • Processing method and processing device for voice enhancement

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Embodiment Construction

[0030] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] A standard G.799.2 of the International Telecommunication Union (ITU-T) defines a dynamic negotiation mechanism to negotiate the switch of each VQE function by exchanging the location information of the VQE module in the voice communication network. G.799.2 provides the optimal positions of various VQE functions, and recommends that the VQE functions not in the optimal positions be turned off. For example, for an EC, the optimal location is a terminal, such ...

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Abstract

The embodiment of the invention discloses a processing method and a processing device for voice enhancement. The processing method for voice enhancement comprises the following steps that: a first VQE (Voice Quality Enhancement) module measures at least one voice quality parameter of the received voice signals; the first VQE module detects the voice quality problem by using at least one voice quality parameter; if the voice quality problem is detected, the first VQE module notifies a second VQE module to change a VQE operation mode of the second VQE module.

Description

technical field [0001] The invention relates to the technical field of digital signal processing, in particular to a voice enhancement processing method and device. Background technique [0002] In the field of digital communication, the transmission of voice, image, audio, and video has a very wide range of application requirements, such as mobile phone calls, audio and video conferences, radio and television, and multimedia entertainment. The voice is digitized and transmitted from one terminal to another through the voice communication network, where the terminal can be a mobile phone, a digital telephone terminal or any other type of voice terminal, such as a VOIP telephone or ISDN telephone, a computer, a cable communication Telephone. The Voice Quality Enhancement (VQE, Voice Quality Enhancement) function is widely used in different places in the voice communication network to solve voice problems in the network, such as acoustic echo (acoustic echo), line echo (line ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/02G10L25/60
CPCG10L25/60G10L21/02
Inventor 艾雅·苏谟特刘长娥
Owner XFUSION DIGITAL TECH CO LTD