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Posted by Werner \"Menneisyys\" Ruotsala on November 20, 2007, 5:08 am
Please log in for more thread options > That is adjusting volume on the source, doesn't do anything to the volume
> on the BT receiver.
Well, let me also add that it's only with the Widcomm BT stack A2DP
implementation that the A2DP volume isn't changed when you change the system
volume. On the MS BT stack, it does. See my related A2DP articles / Bibles
for more info if interested.
However, as far as the original question is concerned: no, you can't change
the *system* volume remotely with any of the available WM stacks (and not
even on Symbian).
--
--
Werner "Menneisyys" Ruotsalainen - Microsoft MVP - Windows - Mobile Devices
Please see the Pocket PC Mag Expert Blog (including mine) at
http://www.pocketpcmag.com/blogs/ - you will definitely like it.
> Unless Motorola did something different, the BT stereo spec doesn't allow
> for volume control over the BT channel. The audio is transferred
> digitally, reconstructed and the amplifier section at the output device,
> speakers/headphones is responsible for managing volume. That is adjusting
> volume on the source, doesn't do anything to the volume on the BT
> receiver. The spec does allow for sending control signals back to the
> source, play, pause, forward, back, but not volume commands. Your BT
> speakers should have a volume control, and that is what you have to use to
> change the volume.
>
> --
> Sven
> MS MVP Mobile Devices
>>I am having problems getting the volume control to work on Windows Media
>> Player when playing music through Bluetooth speakers. Controlling volume
>> on
>> the onboard speakers are ok, just the Bluetooth speakers do not work.
>> This
>> is on the MotoQ. I have tried different BT devices, which results in the
>> same problem. I have tried different cell phones with WMP, and it seems
>> to
>> work ok. It is just the MotoQ.
>>
>> Is the sound mixer a custom Motorola application, or is this an OS
>> control?
>> Is there any registry tweaks I can try to modify to get this to work?
>
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