[wdmaudiodev] AW: Re: Touble with Vista Treble & Bass control

  • From: "Platzer Wilfried" <Wilfried.Platzer@xxxxxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Tue, 17 Jul 2007 20:09:44 +0200

Hi DJ Sisolak,

the best thing about this is that you always control the preferred device.
If you have voice over IP solutions you do not run as preferred device because 
you want only the voice over IP connection and no Windows pling and plong - you 
are forced to do solve this with proprietary software
if you want to have anyway audio controls on your voice over IP device e.g. 
mute volume ... otherwise you are controlling the sound card with your device. 
If you plug in later on a normal usb audio device you start to control this one 
with your controls. This is a great adventure for all people playing around 
with it. Especially the end user has fun with it.
I discussed this issue years ago with Billy Brackenridge (during this days with 
Microsoft) We achieved no solution the Microsoft stuff was not prepared for 
such difficult things. Things did not change as I can see.

Cheers

Willy



Micronas GmbH
Company Headquarters / Sitz der Gesellschaft: Freiburg i. Br. - Municipal Court 
of / Amtsgericht: Freiburg i. Br. HRB 428. VAT ID / USt-IdNr.: DE 811127087
Management / Geschäftsführung: Dr. Wolfgang Kalsbach, Chairman / Vorsitzender, 
Hans-Jürgen Désor, Klaus Heberle,
Nikolaus V. Kaeppeler, Wilfried Lowinski, Dirk Wieberneit, Wolfgang Kühn - 
Chairman of Supervisory Board / Vorsitzender des Aufsichtsrats: Heinrich W. 
Kreutzer

-----Ursprüngliche Nachricht-----
Von: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] 
Im Auftrag von DJ Sisolak
Gesendet: Dienstag, 17. Juli 2007 19:19
An: wdmaudiodev@xxxxxxxxxxxxx
Betreff: [wdmaudiodev] Re: Touble with Vista Treble & Bass control

Hi Ernest,

If you can adjust the controls from the control panel then the device's audio 
interfaces have enumerated correctly. To get the Treble and Bass controls sent 
from the device you need to implement the associated HID controls. Also, for 
HID controls to work, the device must be selected as the preferred audio device 
in the system.

Do you have a HID interface implemented? Is your device the preferred device?

Cheers,
DJ Sisolak
Microsoft Corp.

-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx 
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of 
Ernest_Burghardt@xxxxxxxxxxxx
Sent: Tuesday, July 17, 2007 9:22 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Touble with Vista Treble & Bass control



We have a speaker system that is using the in-box usbaudio driver where the
satelites have Treble & Bass controls.
 The satelite responds correctly if the tone is changed from the Vista
control panel, but not from the satelite.
The thought is that our FW is not enumerating the device correctly to
Vista; does that seem reasonable or is there some other possibility?
Also, does anyone know if there is a specific portion of the enumeration
that lets Vista know a device wishes to control Treble & Bass?

Thanks in advance,
Ernie


Ernest L. Burghardt
Software Engineer
Logitech
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