A2DP Bluetooth (Advanced Audio Distribution Profile)
Now a days, you must have read that smartphones are coming
with A2DP Bluetooth so here I tried to give idea what Is A2DP Bluetooth, Hope
you like. Bluetooth has more than 36 profiles one of which is A2DP. Others are like HFP (Hands-free
calling through the stereo) , AVRCP (Control over music playback directly from the stereo) OPP (Uploading
of contact info to the stereo) and many more.
To read more about Bluetooth profiles on Wikipedia : http://en.wikipedia.org/wiki/Bluetooth_profile
)
This profile defines how high quality audio (stereo or mono)
can be streamed from one device to another over a Bluetooth connection. For example, music streamed from a mobile
phone to a wireless headset. Now
a days, consumer demand for wireless everything has meant high quality wireless
audio has to be provided, and because you can’t change the reliable, low
quality handset profile in Bluetooth, the A2DP profile has been created to
compliment it by providing the bandwidth to send high quality audio. All other Bluetooth
communication happens through the much wider data layer. A2DP sets aside a
section of the data layer and sends high quality audio through it.
Many Bluetooth 1.1 and 1.2 mobile phones and portable media
players do not natively support A2DP, while some newer Bluetooth 2.0 headphones
do support it. Bluetooth
headphones, especially the more advanced models, often come with a microphone
and support for the Headset (HSP), Hands-Free (HFP) and Audio/Video Remote
Control (AVRCP) profiles.
Essentially,
A2DP creates a "Source/Sink" relationship between your phone and your
stereo, in which your phone, the source, sends signal to your stereo, the sink.
A2DP is also used in products such as wireless headphones and wireless speaker
systems.
Read more here:
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