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Method and device for sound signal processing

A sound signal processing and sound signal technology, applied in the information field, can solve problems such as large wind noise probability or signal-to-noise ratio error, affecting voice quality, and wind noise residual.

Active Publication Date: 2018-08-21
HUAWEI CLOUD COMPUTING TECH CO LTD
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  • Abstract
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Problems solved by technology

The probability of wind noise calculated in this way or the SNR error is relatively large, resulting in residual wind noise and voice distortion, affecting voice quality

Method used

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  • Method and device for sound signal processing
  • Method and device for sound signal processing
  • Method and device for sound signal processing

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Embodiment Construction

[0158] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0159] figure 1 A schematic flowchart of a sound signal processing method 100 according to an embodiment of the present invention is shown. The method 100 can be executed by an audio signal processing device. Such as figure 1 As shown, the method 100 includes:

[0160] S110, performing wind noise detection on the sound signal according to the frequency spectrum continuity of the wind noise and the characteristic starting from low frequency;

[0161] S120. Per...

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Abstract

The invention discloses a method and a device for processing sound signals. The method comprises the steps of: carrying out wind noise detection on the sound signals according to characteristics of the wind noise in spectrum continuity, which start from low frequency; performing a voiced sound detection on the sound signals according to harmonic frequency characteristics of the voiced sound; carrying out an unvoiced sound detection on the sound signals according to medium-high frequency characteristics of the unvoiced sound; controlling gains of the sound signals according to results of the wind noise detection, the voiced sound detection and the unvoiced sound detection. Based on the method and the device for processing the sound disclosed by the embodiment of the invention, the voice quality can be improved.

Description

technical field [0001] The present invention relates to the field of information technology, and more particularly, to a method and device for processing sound signals. Background technique [0002] Various voice processing devices, such as mobile phones, Bluetooth headsets, tape recorders, video recorders, etc., will inevitably be disturbed by wind noise when used outdoors. Wind noise is mainly produced by the interaction between the airflow and the microphone, similar to the noise produced by tapping the front of the microphone with a finger when the microphone is picking up sound, or exhaling when the mouth is close to the microphone. Since the wind noise is formed by the airflow directly acting on the surface of the microphone, it can reach a high sound pressure level, which can easily cover up the voice signal and have a great impact on the hearing comfort and intelligibility of the voice signal. Therefore, for speech processing equipment, wind noise suppression techno...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0264
Inventor 周雷郑成诗石代虎
Owner HUAWEI CLOUD COMPUTING TECH CO LTD
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