Audio signal encoding and decoding method using learning model, training method of learning model, and encoder and decoder that perform the methods
US11694703B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2022 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Feb 15, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An audio signal encoding and decoding method using a learning model, a training method of the learning model, and an encoder and decoder that perform the method, are disclosed. The audio signal decoding method may include extracting a first residual signal and a first linear prediction coefficient by decoding a bitstream received from an encoder, generating a first audio signal from the first residual signal using the first linear prediction coefficient, generating a second linear prediction coefficients and a second residual signal from the first audio signal, obtaining a third linear prediction coefficient by inputting the second linear prediction coefficient into a trained learning model, and generating a second audio signal from the second residual signal using the third linear prediction coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.