Audio coding method and related apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorZhe WANG
Life of this patent
Estimating the term…
Abstract
An audio coding method and a related apparatus are disclosed. The audio coding method includes: estimating reference linear prediction efficiency of a current audio frame; determining an audio coding scheme that matches the reference linear prediction efficiency of the foregoing current audio frame; and performing audio coding on the foregoing current audio frame according to the audio coding scheme that matches the reference linear prediction efficiency of the foregoing current audio frame. The technical solutions provided in embodiments of the present disclosure help reduce overheads of audio coding.
Claims20
An audio coding method, performed by an audio encoder comprising:
- estimating a short-term linear prediction efficiency of a current audio frame, wherein the short-term linear prediction efficiency represents an extent to which linear prediction can be performed on the audio frame;
- selecting an audio coding scheme according to the short-term linear prediction efficiency, wherein the audio coding scheme is selected from a group consisting of a linear prediction based coding scheme and a non-linear prediction based audio coding scheme;
- and
- performing audio coding on the current audio frame according to the selected audio coding scheme.
An audio coder, comprising:
- a memory comprising instructions;
- and one or more processors in communication with the memory, wherein the one or more processors execute the instructions to:
- estimate a short-term linear prediction efficiency of a current audio frame, wherein the short-term linear prediction efficiency represents an extent to which linear prediction can be performed on the audio frame;
- select an audio coding scheme between a linear prediction based coding scheme or a non-linear prediction based coding scheme according to the short-term linear prediction efficiency;
- and
- perform audio coding on the current audio frame according to the selected audio coding scheme.
An audio coding method, comprising:
- estimating a short-term linear prediction efficiency of a current audio frame, wherein the short-term linear prediction efficiency represents an extent to which linear prediction can be performed on the audio frame;
- selecting an audio coding scheme between a linear prediction based coding audio scheme or a non-linear prediction based audio scheme according to the short-term linear prediction efficiency;
- and
- performing audio coding on the current audio frame according to the selected audio coding scheme.
An audio coder, comprising:
- a memory comprising instructions;
- and one or more processors in communication with the memory, wherein the one or more processors execute the instructions to:
- estimate a short-term linear prediction efficiency of a current audio frame, wherein the short-term linear prediction efficiency represents an extent to which linear prediction can be performed on the audio frame;
- select an audio coding scheme according to the short-term linear prediction efficiency, wherein the audio coding scheme is selected from the group consisting of a linear prediction based coding scheme and a non-linear prediction based audio scheme;
- and
- perform audio coding on the current audio frame according to the selected audio coding scheme.
Dependencies are inferred from the claim text.