[wdmaudiodev] Re: Setting KSPROPERTY_AUDIO_VOLUMELEVEL
- From: Neetu Sand <neetu.freelist@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Sat, 25 Jun 2011 09:32:31 +0530
Hi Tim,
If exposing volume control is not an option then what should I do to get rid
of 30 dB gain?
Any ideas?
cheers,
Neetu
On Fri, Jun 24, 2011 at 11:00 PM, Tim Roberts <timr@xxxxxxxxx> wrote:
> Neetu Sand wrote:
> >
> > Our driver is based on wavecyclic miniport. It exposes a speaker and
> > MIC. We are seeing that on Windows 7, MIC volume has a 30dB gain with
> > a volume slider range -192 dB to 30 dB. Our device does not have a
> > volume knob but we want to change the volume slider range to -192 dB
> > to 0 dB or at least be able to set volume to 3dB for MIC. That way we
> > can get rid of extra gain. That's why I have implemented topology
> > filter and implemented property handler.
>
> If your device does not have adjustable volume, then you should not be
> exposing any volume properties at all, and there should not be a volume
> control in the control panel.
>
> --
> Tim Roberts, timr@xxxxxxxxx
> Providenza & Boekelheide, Inc.
>
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