Methods of encoding and decoding audio signal using neural network model, and devices for performing the methods
US11862183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2021 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Jan 12, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N3/09
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An audio signal encoding and decoding method using a neural network model, a method of training the neural network model, and an encoder and decoder performing the methods are disclosed. The encoding method includes computing the first feature information of an input signal using a recurrent encoding model, computing an output signal from the first feature information using a recurrent decoding model, calculating a residual signal by subtracting the output signal from the input signal, computing the second feature information of the residual signal using a nonrecurrent encoding model, and converting the first feature information and the second feature information to a bitstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.