Method and system for automatically configuring audio encoding format transmitted by bluetooth A2DP

Abstract

The invention discloses a Bluetooth audio sending end in an audio encoding format and automatically configuring the transmission of high quality Bluetooth audio data, and a method and a system thereof. By comparing the audio encoding format of a local audio file with the audio encoding format supported by a Bluetooth audio receiving end, the Bluetooth audio sending end chooses an A2DP transmission audio encoding format for transmitting the high quality audio data from the Bluetooth audio sending end to the Bluetooth audio receiving end; if the audio encoding format supported by the Bluetooth audio receiving end contains the audio encoding format of the local audio file, the audio encoding format of the local audio file is selected as the A2DP transmission audio encoding format and an audio play module is added to the Bluetooth audio sending end, thereby the Bluetooth audio sending end can directly transmit the high quality audio data by an A2DP link circuit and in the audio encoding format of the local audio file to the Bluetooth audio receiving end with no need of the operation of the soundcard of the system for collecting the high quality audio data and the conversion of the audio encoding format.

Description

technical field [0001] The present invention relates to bluetooth communication technology, in particular to a bluetooth audio sending end automatically configures the A2DP transmission audio encoding format of bluetooth high-quality audio data according to the audio encoding format of the local audio file and the audio encoding format supported by the bluetooth audio receiving end methods, devices and systems. Background technique [0002] The emergence of wireless technology enables users to listen to music and make calls wirelessly. Its implementation is usually to have a wireless transceiver in the audio sending end (such as computer, PDA, mobile phone, etc.) audio receiver. [0003] For example, there is currently a Bluetooth short-range wireless communication technology that operates in the 2.4GHz Industrial-Scientific-Medical (ISM) frequency band. In the Bluetooth Advanced Audio Distribution Profile (A2DP) formulated by the Bluetooth Special Interest Group (SIG), t...

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned bluetooth audio application process, the audio player and the bluetooth application system at the bluetooth audio sending end are two different application programs, so that high-quality audio data needs to be collected through the bluetooth sound card in the operating system, and high-quality audio data requires Encoding and decoding conversion between the audio encoding format of the local audio file and the PCM audio encoding format, and encoding and decoding conversion between the PCM audio encoding format and the audio encoding formats such as SBC and MP3 supported by the Bluetooth audio receiver , which will inevitably cause loss of audio signal, occupy higher processor resources and lead to higher power consumption

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