METHOD AND SERVER FOR WAVEFORM GENERATION Russian patent published in 2023 - IPC G06N3/08 G10L13/08 

FIELD: computer science.

SUBSTANCE: method includes obtaining a trained flow-based vocoder including reversible blocks and an untrained feed-forward vocoder including irreversible blocks that form a teacher-student network, performing a learning process on the teacher-student network, during which the server generates (i) a teacher-related waveform by a trained flow-based vocoder using the first spectrogram and the first input noise, (ii) a student-related waveform by an untrained feed-forward vocoder using the first spectrogram and the first input noise, and (iii) a loss value for a particular training iteration using the teacher-related waveform and the student-related waveform. The server then trains the untrained feed-forward vocoder to generate a waveform. The trained feed-forward vocoder is used instead of the trained flow-based vocoder to generate waveforms based on spectrograms and input noise.

EFFECT: improved efficiency of generating realistic audio representations of text.

17 cl, 7 dwg