Patent ID: 11869482
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The method of claim 1, wherein the first neural network model is trained through:
receiving a training speech signal comprising a glottal source signal and a vocal tract training feature;
extracting fundamental frequency training information, a phase training feature, a shape training feature and an energy training feature from the glottal source signal;
obtaining a reconstructed glottal waveform based on the fundamental frequency training information, the phase training feature, the shape training feature and the energy training feature through the first neural network model;
comparing the reconstructed glottal waveform with the glottal source signal to obtain a glottal waveform error; and
optimizing the first neural network model based on the glottal waveform error.