Audio signal processing method and device, equipment and storage medium

An audio signal processing and audio processing technology, which is applied in signal processing, microphone signal combination, loudspeaker, etc., can solve the problems of poor separation of sound sources, failure to consider the impact of interference sound source movement processing results, etc.

Active Publication Date: 2020-10-20
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The method in the related art uses a pre-designed filter, which does not take into account the influence of the movement of the interfering sound source on the processing result, resulting in poor separation of the final sound source

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  • Audio signal processing method and device, equipment and storage medium
  • Audio signal processing method and device, equipment and storage medium
  • Audio signal processing method and device, equipment and storage medium

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Embodiment Construction

[0050] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0051] It should be understood that "several" mentioned herein refers to one or more, and "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character " / " gener...

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Abstract

The invention discloses an audio signal processing method and device, equipment and a storage medium, and belongs to the field of voice processing. The method comprises the following steps: acquiringat least two audio signals acquired by different microphones in a microphone array; filtering the at least two audio signals through a first filter to obtain a first target beam; filtering the at least two audio signals through a second filter to obtain a first interference beam; obtaining a second interference beam of the first interference beam through a third filter; determining the differencebetween the first target beam and the second interference beam as a first audio processing output; and adaptively updating at least one of the second filter and the third filter, and updating the first filter according to the second filter and the third filter after updating is completed. The method can reduce interference leakage under the condition of interference movement.

Description

technical field [0001] The present disclosure relates to the field of voice processing, and in particular to an audio signal processing method, device, equipment and storage medium. Background technique [0002] In voice communication, the voice signal collected by the microphone will always be interfered by external environmental noise. Speech enhancement technology is an important branch of speech signal processing. It is widely used in noise suppression in noisy environments, speech compression coding and speech recognition. It can solve the problem of speech noise pollution, improve speech communication quality, and improve speech intelligibility. and speech recognition rate are playing an increasingly important role. [0003] In related technologies, a generalized sidelobe canceller (Generalized Sidelobe Canceller, GSC) algorithm is used for speech enhancement. GSC uses a convex optimization method to pre-design the filter to obtain better beam performance. [0004] ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/02G10L21/0216G10L21/0232
CPCG10L21/02G10L21/0216G10L21/0232H04R1/406H04R3/005H04R2430/20G10L2021/02166G10L21/0208H04R25/407H04R2201/40G10L21/003G10L21/0364
Inventor 陈日林姜开宇黎韦伟
Owner TENCENT TECH (SHENZHEN) CO LTD
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