A method and device for processing voice and audio signals

A voice, audio and signal technology, applied in the field of communication, can solve the problems affecting the auditory quality of the signal and the echo of the signal.
CN105336339BActive Publication Date: 2019-05-03HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2019-05-03

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Abstract

The embodiment of the present invention discloses a method and device for recovering noise components of speech and audio signals. The method includes: receiving a code stream, decoding the code stream to obtain a speech and audio signal; determining the first speech and audio signal according to the speech and audio signal; determining The sign of each sampling value in the first speech and audio signal and the amplitude value of each sampling value; determine the adaptive normalization length; according to the adaptive normalization length and each of the sampling values The amplitude value determines the adjustment amplitude value of each sampling value; and determines the second speech and audio signal according to the sign of each sampling value and the adjustment amplitude value of each sampling value. In the embodiment of the present invention, for the voice and audio signal with rising edge or falling edge, when the noise component is restored, the signal after the noise component of the voice and audio signal is restored will not have an echo, and the auditory quality of the signal after the noise component of the voice and audio signal is restored is improved. .
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Description

technical field

[0001] The present invention relates to the communication field, in particular to a method and device for processing voice and audio signals. Background technique

[0002] In order to achieve better auditory quality, at present, when an electronic device decodes encoded information of a speech and audio signal, it restores noise components to the decoded speech and audio signal.

[0003] At present, when an electronic device restores the noise component of a speech and audio signal, it is generally implemented by adding a random noise signal to the speech and audio signal. Specifically, the voice and audio signal and the random noise signal are weighted to obtain the signal after the noise component of the voice and audio signal is restored; wherein, the voice and audio signal can be a time domain signal, a frequency domain signal or an excitation signal, or a low frequency signal or a high frequency signal. frequency signal etc.

[0004] However, the inven...

Claims

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