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Method and device for reducing code rate of audio encoder and storage medium

An audio encoder and audio encoding technology, which is applied in the direction of instruments, voice analysis, short-distance communication services, etc., can solve the problems of low efficiency of LC3 encoder and waste of encoding bits, and achieve the effect of reducing code rate and saving air bandwidth

Pending Publication Date: 2021-01-26
BEIJING BAIRUI INTERNET TECH CO LTD
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Problems solved by technology

[0013] This application aims at the problem that the efficiency of the LC3 coder that conforms to the standard specification is not high at present, especially the above-mentioned problem of waste of coding bits, and provides a method, device and storage medium for reducing the code rate of the audio coder, by reducing Bit rate, which can save air bandwidth

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  • Method and device for reducing code rate of audio encoder and storage medium
  • Method and device for reducing code rate of audio encoder and storage medium
  • Method and device for reducing code rate of audio encoder and storage medium

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Embodiment Construction

[0024] The preferred embodiments of the application will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the application can be more easily understood by those skilled in the art, so as to define the protection scope of the application more clearly.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elemen...

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Abstract

The invention discloses a method and device for reducing the code rate of an audio encoder and a medium, and belongs to the technical field of wireless communication, and the method comprises the steps: a judgment step: judging whether the number of original bytes occupied by at least one frame of data in the audio encoder is redundant or not; a recalculation step: recalculating the byte number actually occupied by the effective value of the data with the redundant original byte number if the original byte number occupied by at least one frame of data is redundant; and an adjustment step: reallocating the required byte number to the at least one frame of data according to the byte number actually occupied by the effective value of the at least one frame of data. According to the invention,the code rate is effectively reduced by adjusting the coding bit stream output by each frame on the premise of ensuring that the coding result is not changed, so that the air bandwidth can be saved.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method, device and storage medium for reducing the code rate of an audio encoder. Background technique [0002] The current mainstream Bluetooth audio encoders are as follows: [0003] SBC: The standard encoding format of Bluetooth audio, the encoding format mandated by the A2DP protocol, is the most widely used and must be supported by all Bluetooth audio devices, but the sound quality is average; [0004] AAC-LC: It is a coding algorithm with a high compression ratio. It has better sound quality and is widely used. Many mainstream mobile phones support it. However, compared with SBC, it takes up a lot of memory and has high computational complexity. Many Bluetooth devices are Based on the embedded platform, the battery capacity is limited, the processor computing power is poor and the memory is limited; [0005] aptX series: the sound retains mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/002H04W4/80
CPCG10L19/002H04W4/80
Inventor 李强王尧叶东翔朱勇
Owner BEIJING BAIRUI INTERNET TECH CO LTD
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