Method and device for voiceprint recognition
US9940935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2016 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Aug 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L17/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is performed at a device having one or more processors and memory. The device establishes a first-level Deep Neural Network (DNN) model based on unlabeled speech data, the unlabeled speech data containing no speaker labels and the first-level DNN model specifying a plurality of basic voiceprint features for the unlabeled speech data. The device establishes a second-level DNN model by tuning the first-level DNN model based on labeled speech data, the labeled speech data containing speech samples with respective speaker labels, wherein the second-level DNN model specifies a plurality of high-level voiceprint features. Using the second-level DNN model, registers a first high-level voiceprint feature sequence for a user based on a registration speech sample received from the user. The device performs speaker verification for the user based on the first high-level voiceprint feature sequence registered for the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.