I'm pretty sure that headset is SCO only. We don't support routing app
processor audio to SCO.

On May 22, 2:38 am, jianwei <kevin....@gmail.com> wrote:
> Sorry for my poor english. May be you didn't understand my purpose.
> I'm a application developer for android platform, and i didn't know
> much about bluetooth. Our application will play some audioes(audio
> format is amr). When bluetooth headset is paired and connected, we
> need playing audio by bluetooth headset. Howerver audio is alway
> played by phone speaker, not bt headset.  My bt headset is HBH-631,
> made by SONY ERICSSON, and it's fine when i call phone. Any
> suggestions? Very thanks.
>
> On 5月22日, 上午9时36分, Dave Sparks <davidspa...@android.com> wrote:
>
> > You asked specifically about Bluetooth SCO 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.
>
> > Bluetooth A2DP 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 A2DP headset, there
> > is nothing the application has to do - it just works.
>
> > On May 20, 6:46 pm, jianwei <kevin....@gmail.com> wrote:
>
> > > Thanks for your responese.
> > > Does this mean all audio in thirdparty application can't play in
> > > bluetooth headset?
>
> > > 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 <kevin....@gmail.com> wrote:
> > > > > Hi all,
> > > > > I met a problem of bluetooth headset. I want to switch audio playing
> > > > > to bluetooth headset when bluetooth headset is paired. I found
> > > > > BluetoothDevice in android sources which can controll bluetooth.
> > > > > 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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