Tencent Technology (shenzhen) Company Limited

Qingbo Huang

Wei Xiao

Meng Wang

Ling Zhu

This application relates to an audio signal enhancement method, performed by a computer device. The method including decoding received speech packets sequentially to obtain a residual signal, long term filtering parameters and linear filtering parameters; filtering the residual signal to obtain an audio signal; extracting feature parameters from the audio signal, when the audio signal is a feedforward error correction frame signal; converting the audio signal into a filter speech excitation signal based on the linear filtering parameters; performing speech enhancement on the filter speech excitation signal according to the feature parameters, the long term filtering parameters and the linear filtering parameters to obtain an enhanced speech excitation signal; and performing speech synthesis to obtain an enhanced speech signal based on the enhanced speech excitation signal and the linear filtering parameters.

Audio signal enhancement method and apparatus, computer device, storage medium and computer program product

Embodiments of this application disclose a signal transcoding method performed by an electronic device. The method includes: acquiring an encoding result of an isignal frame and encoding results respectively corresponding to first n signal frames of the isignal frame; generating forward error correction (FEC) encoding results respectively corresponding to the first n signal frames according to the encoding results respectively corresponding to the first n signal frames; and synthesizing the encoding result corresponding to the isignal frame and the FEC encoding results respectively corresponding to the first n signal frames to generate an encoded frame corresponding to the isignal frame, the encoded frame comprising a flag bit for indicating a value of n. According to this application, a quantity of FEC encoded frames included in an encoded frame can be flexibly adjusted to improve the reliability of data transmission in a poor network state.

Transcoding method and apparatus, medium, and electronic device

This disclosure relates to encoding and decoding methods and apparatuses. The method may include encoding an isignal frame, to obtain an encoded result of the isignal frame. The method may further include performing forward error correction encoding on first n signal frames, to obtain forward error correction encoded results corresponding to the first n signal frames. The first n signal frames may be signal frames located before the isignal frame. The method may further include synthesizing the encoded result of the isignal frame and the forward error correction encoded results corresponding to the first n signal frames, to obtain an iencoded frame corresponding to the isignal frame. The iencoded frame may comprise a flag bit, the flag bit may be for indicating a number n, and n may be a positive integer greater than or equal to 2.

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Guangdong, China

Qingbo Huang