Audio encoding and decoding method and device
By selecting a target virtual speaker from a virtual speaker set to generate a virtual speaker signal and a residual signal for encoding, the problems of large data volume and high bandwidth occupancy in multi-channel encoding and decoding methods are solved, and a more efficient encoding and decoding process is achieved.
Patent Information
- Application Number
- CN202011377433.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-11-30
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2040-11-30
AI Technical Summary
Existing multi-channel encoding and decoding methods require adapting the codec according to the number of channels of the original scene audio signal, resulting in large data volume and high bandwidth occupancy, making it difficult to effectively reduce the amount of encoding and decoding data.
By selecting the target virtual speaker from the virtual speaker set, generating a virtual speaker signal and a residual signal, and encoding them, the direct encoding of the original scene audio signal is reduced. The encoding data volume of the virtual speaker signal and the residual signal is independent of the number of channels, thereby improving the encoding efficiency.
It effectively reduces the amount of encoded data and improves encoding and decoding efficiency, while ensuring the encoding quality and the audio signal reconstruction effect at the decoding end.