Method of processing residual signal for audio coding, and audio processing apparatus
US11508385B2 · kind B2 · utility
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3References
13Claims
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Key dates
| Filing date | Nov 18, 2019 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Dec 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method of processing a residual signal for audio coding and an audio coding apparatus. The method learns a feature map of a reference signal through a residual signal learning engine including a convolutional layer and a neural network and performs learning based on a result obtained by mapping a node of an output layer of the neural network and a quantization level of index of the residual signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.