Audio encoding/decoding apparatus and method using vector quantized residual error feature
US11804230B2 · kind B2 · utility
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Key dates
| Filing date | Apr 1, 2022 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Apr 1, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An audio encoding/decoding apparatus and method using vector quantized residual error features are disclosed. An audio signal encoding method includes outputting a bitstream of a main codec by encoding an original signal, decoding the bitstream of the main codec, determining a residual error feature vector from a feature vector of a decoded signal and a feature vector of the original signal, and outputting a bitstream of additional information by encoding the residual error feature vector.
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