Voice signal processing method, device and system and storage medium
A voice signal processing and voice signal technology, applied in voice analysis, instruments, etc., can solve the problems of poor voice compensation effect, high system overhead, low accuracy rate of receiving end answering, etc. Solve the effect of large amount of calculation for packet loss compensation
Active Publication Date: 2022-04-22
北京汇金春华科技有限公司
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[0005] The embodiment of the present application provides a voice signal processing method, device, system, and storage medium, which can solve the problem of low answering accuracy at the receiving end due to large system overhead and poor voice compensation effect
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[0045] Embodiments of the present application provide a voice signal processing method, device, system, and storage medium, which can solve the existing problems of high system overhead and poor voice compensation effect resulting in low answering accuracy at the receiving end.
[0046] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements i...
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The embodiment of the invention provides a voice signal processing method. A historical voice signal with a preset length is converted into a first frequency domain signal; determining alternative fundamental tone frequency points in the first frequency domain signal based on the frequency point voiced sound amplitudes of different fundamental tone frequencies and the corresponding threshold amplitudes; under the condition that the alternative base audio frequency point exists in the first frequency domain signal, zero setting is carried out on the frequency point amplitude corresponding to the alternative base audio frequency point in the first frequency domain signal, and a second frequency domain signal is obtained; determining a target voiced sound signal based on the second frequency domain signal; and generating a voice compensation signal according to the target voiced sound signal. Signals are analyzed from the frequency domain level, according to the quasi-periodicity of the voiced sound signals, the frequency points of the voiced sound signals are determined through the voiced sound amplitude of each frequency point, the frequency points which do not contain the voiced sound signals or are weak in voiced sound signals are filtered out, noise signals and unvoiced sound signals can be filtered out as much as possible, and the finally obtained voiced sound signals are closer to the real situation. The accuracy of voiced sound signal estimation is improved, the calculated amount is low, and the problem that the calculated amount of voice signal packet loss compensation is large in an existing algorithm is solved.
Description
technical field [0001] The present application relates to the technical field of speech signal processing, and in particular to a speech signal processing method, device, system and storage medium. Background technique [0002] For Internet voice calls, if there is no data to be played in the voice buffer, packet loss compensation is required, that is, historical data is used to generate current data, otherwise, the peer end will obviously feel that the sound is discontinuous. The general packet loss compensation scheme first calculates the pitch period of the signal through the historical signal, then uses the voiced signal at the historical moment as the current voiced signal, and then superimposes the unvoiced signal and background noise as the voice signal output. [0003] Since the data signal when calculating the pitch period also includes unvoiced signals and noise, this will have a certain impact on the result; in addition, the related calculation amount is relativel...
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Login to View More IPC IPC(8): G10L21/0208G10L21/0232
CPCG10L21/0208G10L21/0232
Inventor 张斌易鑫
Owner 北京汇金春华科技有限公司