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Reverberation elimination method and device, computer equipment and storage medium

A computer program and reverberation technology, applied in speech analysis, instruments, etc., can solve the problems of long room impulse response length, great learning difficulty, and large variation range, so as to reduce speech damage, improve speech quality, and remove reverberation. Effect

Inactive Publication Date: 2020-06-19
TENCENT TECH (SHENZHEN) CO LTD
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Problems solved by technology

[0003] In traditional techniques, the reverberation signal is deconvolved by estimating the inverse filter of the room impulse response. However, since the room impulse response is unknown, time-varying, and long in length, it is very difficult to track and estimate the room impulse response , resulting in poor reverberation cancellation
At present, the reverberation elimination method based on machine learning of artificial intelligence usually directly estimates the amplitude spectrum of the audio signal, but the amplitude spectrum has a large range of changes and is difficult to learn, resulting in poor voice quality after reverberation elimination

Method used

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  • Reverberation elimination method and device, computer equipment and storage medium
  • Reverberation elimination method and device, computer equipment and storage medium

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Embodiment Construction

[0036] Artificial Intelligence (AI) is a theory, method, technology and application system that uses digital computers or machines controlled by digital computers to simulate, extend and expand human intelligence, perceive the environment, acquire knowledge and use knowledge to obtain the best results. In other words, artificial intelligence is a comprehensive technique of computer science that attempts to understand the nature of intelligence and produce a new kind of intelligent machine that can respond in a similar way to human intelligence. Artificial intelligence is to study the design principles and implementation methods of various intelligent machines, so that the machines have the functions of perception, reasoning and decision-making. Artificial intelligence technology is a comprehensive subject that involves a wide range of fields, including both hardware-level technology and software-level technology. Artificial intelligence basic technologies generally include tec...

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Abstract

The invention relates to a reverberation elimination method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a voice signal with reverberation;processing the voice signal with reverberation to obtain a first amplitude spectrum, and obtaining a voice feature with reverberation of the voice signal with reverberation based on the first amplitude spectrum; determining a corresponding time-frequency masking quantity according to the voice characteristics with reverberation, and performing reverberation elimination on the first amplitude spectrum based on the time-frequency masking quantity to obtain a second amplitude spectrum; and determining the voice signal after reverberation elimination according to the second amplitude spectrum. Byadopting the method, the reverberation elimination effect and the voice quality after reverberation elimination can be improved.

Description

technical field [0001] The present application relates to the technical field of speech processing, in particular to a reverberation elimination method, device, computer equipment and storage medium. Background technique [0002] Indoor reverberation is a relatively common phenomenon in daily life, but the reverberation signal will affect the clarity and intelligibility of the audio signal, thereby affecting the performance of speech recognition, hearing aids, and sound source localization. Therefore, it is necessary to eliminate reverberation. [0003] In traditional techniques, the reverberation signal is deconvolved by estimating the inverse filter of the room impulse response. However, since the room impulse response is unknown, time-varying, and long in length, it is very difficult to track and estimate the room impulse response , resulting in poor reverberation cancellation. The current reverberation cancellation method based on machine learning of artificial intelli...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208
CPCG10L21/0208G10L2021/02082
Inventor 李娟娟朱睿王燕南
Owner TENCENT TECH (SHENZHEN) CO LTD
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