Training a voice morphing apparatus
US11100940B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2020 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Feb 16, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/0135
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for training a voice morphing apparatus are described. The voice morphing apparatus is trained to morph input audio data to mask an identity of a speaker. Training is performed by evaluating an objective function that is a function of the input audio data and an output of the voice morphing apparatus. The objective function may have a first term that is based on speaker identification and a second term that is based on audio fidelity. By optimizing the objective function, parameters of the voice morphing apparatus may be adjusted so as to reduce a confidence of speaker identification and maintain an audio fidelity of the morphed audio data. The voice morphing apparatus, once trained, may be used as part of an automatic speech recognition system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.