Dave, thanks very much. I've got it. : )
On 5月23日, 上午2时32分, Dave Sparks <[email protected]> wrote:
> With an A2DPheadset, all app processor audio can be routed to theheadset.
>
> I thought I gave a pretty good summary of the differences between SCO
> and A2DP. If you need more detail, there is a lot of information
> available on the web.
>
> On May 22, 7:02 am, jianwei <[email protected]> wrote:
>
> > What's SCO? What's A2DP? I'm not clear about that. Did that mean if i
> > using A2DPbluetoothheadset, all audioes will auto play by
> >bluetoothheadset? And not allbluetoothheadsethardware supports
> > A2DP. Does that right?
>
> > On 5月22日, 上午9时36分, Dave Sparks <[email protected]> wrote:
>
> > > You asked specifically aboutBluetoothSCO before. SCO is an 8KHz mono
> > > audio channel compressed down to a low bit-rate stream. To get a
> > > simulation of what it sounds like, try listening to music over a GSM
> > > circuit.
>
> > > BluetoothA2DP is a different story. It use a reasonably good
> > > perceptual stereo codec. With the Cupcake 1.5 release, we support A2DP
> > > out of the box. If the user pairs and connects an A2DPheadset, there
> > > is nothing the application has to do - it just works.
>
> > > On May 20, 6:46 pm, jianwei <[email protected]> wrote:
>
> > > > Thanks for your responese.
> > > > Does this mean all audio in thirdparty application can't play in
> > > >bluetoothheadset?
>
> > > > Dave Sparks wrote:
> > > > > We don't support sending app processor audio over SCO. The audio
> > > > > quality would be very poor.
>
> > > > > On May 20, 6:51 am, jianwei <[email protected]> wrote:
> > > > > > Hi all,
> > > > > > I met a problem ofbluetoothheadset. I want to switch audio playing
> > > > > > tobluetoothheadsetwhenbluetoothheadsetis paired. I found
> > > > > > BluetoothDevice in android sources which can controllbluetooth.
> > > > > > However it is not contained in android.jar. So I used
> > > > > > AudioManager.setBluetoothScoOn(true), but it still can't work. This
> > > > > > problem has troubled me a long time. I do appreciate your help.
> > > > > > Thanks
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