Neural network-based voiceprint information extraction method and apparatus
US10176811B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2017 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Jun 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus of extracting voiceprint information based on neural network are disclosed. The method includes: extracting a phonetic acoustic feature from an input voice segment; inputting the phonetic acoustic feature into a voiceprint model trained based on a neural network, and extracting a bottleneck feature of the neural network in the voiceprint model; and mapping frame vectors of the bottleneck feature of the neural network into a single-frame voiceprint expression vector, which serves as voiceprint information corresponding to the input voice segment. The neural network-based voiceprint information extraction method and apparatus extract voiceprint information of a voice segment using a voiceprint model trained based on a neural network, and thus the extraction process is relatively simple, and a short-time voice segment can be processed in a better manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.