Voice morphing apparatus having adjustable parameters
US11600284B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2020 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Jul 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/0135
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voice morphing apparatus having adjustable parameters is described. The disclosed system and method include a voice morphing apparatus that morphs input audio to mask a speaker's identity. Parameter adjustment uses evaluation of an objective function that is based on the input audio and output of the voice morphing apparatus. The voice morphing apparatus includes objectives that are based adversarially on speaker identification and positively on audio fidelity. Thus, the voice morphing apparatus is adjusted to reduce identifiability of speakers while maintaining fidelity of the morphed audio. The voice morphing apparatus may be used as part of an automatic speech recognition system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.