Re: Get access to the playback mic volume control by in vc++ win32

On Fri, 15 Aug 2008 22:11:08 -0700 (PDT), vinaykabadi
<vinaykabaddi@xxxxxxxxx> wrote:

Hello Sir,

I hope u have forgot about my discussion, thats why I have posted a
new post.

The last discussion we had was

I Said:
Go to playback devices, there you will find some devices atleast
speaker. Click on its properties button down there, It will show some
tabs like general, levels, enhancements, advancements. Among them,
goto levels you will find many components. (microphone, linein, front
mic, etc)

Not neccesary you select speaker, you can select any other device also
but it should be able to be enumerated.


U said:
Unfortunately that's not the case with my sound card (Analog Devices
SoundMax). The only item listed on Levels is Speakers. I have it set
to
show hidden and unused devices.

I will check tomorrow with a Sound Blaster Audigy card.


I just purchased a Vista laptop that uses the Realtek High Definition
chipset, and I also find I cannot control the mixer. In addition, I
tested with a USB "sound card" on the same system, and it likewise
cannot be controlled, so I assume this is a Vista issue.

As a reality check, I always fall back on Mixer Browser freeware
utility by Philip Donner... my copy is version 1.4 (2003). This shows
all the controls (including line IDs and other low-level info) and
allows you to operate them. But under Vista, the controls have no
effect. (So I guess he is doing things just like we are! <g> )
It controls everything just fine under Win9x and XP.

The documentation for the latest version of Mixer Browser says:

---- begin quote -----
"Although the audio mixer system has remained intact in Windows Vista,
the archicture has undergone several changes, which affect the
functionality of the utility. Individual applications - and Mixer
Browser is only of them - operate an application specific virtual
mixer without affecting the settings of any other sound devices."
--- end quote ----

Except that the "application specific virtual mixer" doesn't seem to
actually operate *any* controls!

Hope someone has a clue to this!

Many thanks and best regards,



Bob Masta

DAQARTA v4.00
Data AcQuisition And Real-Time Analysis
www.daqarta.com
Scope, Spectrum, Spectrogram, Sound Level Meter
FREE Signal Generator
Science with your sound card!
.