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Bluetooth audio self-adaption transmission method

An adaptive transmission, Bluetooth audio technology, applied in transmission systems, near-field transmission systems, electrical components, etc., can solve the problems of Bluetooth audio and sound stuttering, and achieve the effect of reducing stuttering and improving user experience.

Inactive Publication Date: 2014-01-22
FUZHOU ROCKCHIP SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a Bluetooth audio adaptive transmission method to solve the problem of sound freezing during Bluetooth audio calls

Method used

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  • Bluetooth audio self-adaption transmission method

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Embodiment Construction

[0016] see figure 1 As shown, the present invention will be described in detail below.

[0017] In the existing Bluetooth call process, the main device (such as a mobile phone, notebook, etc.) is first paired with a Bluetooth audio device (such as a Bluetooth headset), and Bluetooth audio transmission can be performed after pairing. During the Bluetooth audio transmission process, the main device will compress the audio data, the compression rate is 100%, and the compression process is PCM (that is, pulse code modulation, which is the process of sampling the analog signal first, then quantizing the sample value amplitude, and encoding ) stream packet, and then the Bluetooth driver of the master device packs the PCM stream packet and compression rate into a data packet in A2DP (Bluetooth Audio Transmission Model Protocol) format, and sends it to the Bluetooth audio device by the Bluetooth module of the master device. After the Bluetooth audio device receives it, the decoding w...

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Abstract

The invention provides a Bluetooth audio self-adaption transmission method comprising the following steps of step 10: reading channel information of a Bluetooth module when the Bluetooth module carries out Bluetooth audio transmission; step 20: supposing that the channel information is arranged in a preset channel range value; step 30: compressing audio data by utilizing a preset compression ratio; step 40: after packaging the compressed audio data and the preset compression ratio into a Bluetooth audio data packet, transmitting the Bluetooth audio data packet by the Bluetooth module. According to the Bluetooth audio self-adaption transmission method disclosed by the invention, the problem of the stop of the Bluetooth audio transmission is largely reduced, and the user experience is improved; the problem that the current Bluetooth audio transmission is interfered to generate stop is solved.

Description

technical field [0001] The invention relates to a Bluetooth audio adaptive transmission method. Background technique [0002] At present, one of the biggest uses of the Bluetooth device of the mobile device is to pair with a Bluetooth headset to realize wireless calling and wireless music listening functions. Since Bluetooth, like many other devices, uses the 2.4GHz channel for transmission, when various wireless protocols are mixed, channel congestion is very likely to occur, resulting in the loss of audio data packets during wireless transmission, and the sound signal heard by the user Intermittent and stuck situations occur from time to time, seriously affecting the user experience. During a call, the user is most concerned about being able to fully listen to the other party's expression information, and does not care much about the quality of the sound. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a Blue...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04B5/00
Inventor 林涛
Owner FUZHOU ROCKCHIP SEMICON
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