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Sigma KEE - AdvancedAudioDistributionProfile
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A2DP
蓝牙立体声音讯传输规范（Advance Audio Distribution Profile），规定了使用蓝牙非同步传输信道方式，传输高质量音乐文件数据的协议堆栈软件和使用方法， 基于该协议就能通过以蓝牙方式传输高品质的立体声音乐。分为1.1版和1.2版，只要连接双方支持A2DP协议都能以16位， 44.1 kHz的质量传输声音信号。假如有一方没有支持A2DP的话，只能以8位，8 kHz的质量的免手持装置规范（Handsfree Profile）传输模式，声音质量会大打折扣。 （资料转载由维基百科）
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Parents 蓝芽 Bluetooth is a wireless technology standard for exchanging data between fixed and mobile devices over short distances using short-wavelength UHF radio waves in the industrial, scientific and medical radio bands, from 2.400 to 2.485 GHz, and building personal area networks (PANs). It was originally conceived as a wireless alternative to RS-232 data cables. (from Wikipedia)


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