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Method and apparatus for realization of Bluetooth stereophonic sound with support of a plurality of sampling rates

An implementation method and sampling rate technology, applied to stereo communication earphones, devices with bluetooth interfaces, electrical components, etc., can solve the problems that audio files cannot be played in bluetooth stereo, achieve the effect of stereo play and improve sound quality

Inactive Publication Date: 2012-02-15
ZTE CORP
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Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a method and device for implementing Bluetooth stereo that supports multiple sampling rates, which can solve the problem that audio files with multiple sampling rates cannot be played in Bluetooth stereo

Method used

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  • Method and apparatus for realization of Bluetooth stereophonic sound with support of a plurality of sampling rates
  • Method and apparatus for realization of Bluetooth stereophonic sound with support of a plurality of sampling rates
  • Method and apparatus for realization of Bluetooth stereophonic sound with support of a plurality of sampling rates

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Embodiment Construction

[0026] The basic idea of ​​the present invention is: first read the audio file that needs to be played, and decode the audio file into PCM data; convert the sampling rate of the PCM data into a sampling rate suitable for the Bluetooth stereo protocol; Play to bluetooth stereo headset.

[0027] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0028] figure 1 It is a schematic flow chart of a Bluetooth stereo implementation method supporting multiple sampling rates of the present invention, such as figure 1 As shown, the method specifically includes the following steps:

[0029] Step 101, read the audio file that needs to be played, and decode the audio file into PCM data;

[0030] Specifically, the format of the audio file includes various encoding formats of audio data. The most common ones are: MP3, AMR, AAC, WMR, WAV and other encoding formats.

[0031] Step 102, c...

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Abstract

The invention discloses a method for realization of a Bluetooth stereophonic sound with support of a plurality of sampling rates. The method comprises the following steps that: an audio file that needs to be played is read and is decoded into pulse code modulation (PCM) data; a sampling rate of the PCM data is converted into a sampling rate that is suitable for a bluetooth stereophonic sound protocol; after the converted PCM data is encoded, the encoded PCM data are sent to a Bluetooth stereo headphone for playing. In addition, the invention also discloses an apparatus for realization of a Bluetooth stereophonic sound with support of a plurality of sampling rates. According to the method and the apparatus provided in the invention, on one hand, when a user can conveniently listen to an audio file through a Bluetooth without limitation of any format; on the other hand, acoustic qualities for listening by a Bluetooth can be improved and stereo playing can be realized.

Description

technical field [0001] The invention relates to bluetooth transmission technology, in particular to a method and device for realizing bluetooth stereo which supports multiple sampling rates. Background technique [0002] At present, bluetooth technology is widely used in the field of consumer electronics, especially bluetooth stereo music in bluetooth technology is increasingly becoming the choice of fashionable people. Among them, the one that supports Bluetooth stereo playback mainly relies on the Bluetooth audio distribution profile (Advanced Audio Distribution Profile, A2DP) protocol. The A2DP protocol can use the chip in the headset to stack data to achieve high-definition sound. [0003] However, the A2DP protocol only supports audio files with two sampling rates, namely 44.1KHz and 48KHz. However, with the improvement of modern compression coding technology, the degree of compression of many music is getting higher and higher, and the sampling rate is getting lower ...

Claims

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Application Information

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IPC IPC(8): H04B14/04H04B5/00
CPCH04R5/033H04M1/6058H04M2250/02H04R2420/07
Inventor 张忠海万超李明
Owner ZTE CORP
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