[wdmaudiodev] Re: Audio device selection on Longhorn
- From: "Sam Tertzakian" <sam@xxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Fri, 12 Aug 2005 02:35:55 -0700
That is probably why my logoed driver for XP/2000 fails to display any wave
devices in the audio properties drop down lists, and why it fails to make
any QCap.dll filters in GraphEdit (but it does make KxProxy.dll filters).
So, for example, my device is not listed under "capture devices" but it is
listed under "wdm streaming devices".
MSFT is look at this right now using my device and my driver.
It seems to me that if a wave device was exposed under xp, it should also be
exposed under Longhorn.
I should have answer in a couple of weeks (I am told by MSFT) regarding
whether it is a bug on my end or a bug in Longhorn.
You can see my previous post for more information.
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff Pages
Sent: Thursday, August 11, 2005 11:32 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Audio device selection on Longhorn
We manufacture a range of multi-channel sound cards. Each channel is
implemented as a WavePCI subdevice, and each subdevice is given a
distinctive name (Chan.1, Chan.2, etc.). This works fine on Windows 2000, XP
and Server 2003, and our cards are logo'd for these platforms.
On Longhorn Beta 1, however, in the Sounds and Audio Devices Properties
dialog, the Preferred Playback Device dropdown lists destination pins rather
than subdevices, and identifies them by pin type (rather than pin name) so
that we get two entries saying "Speaker output on Auricon". On the Preferred
Recording Device dropdown list, it appears to list all source pins, again
identified by pin type, so we get multiple entries for each subdevice, all
called "Line In on Auricon". Needless to say this is not a good user
experience.
Also our input topology is a mixer rather than a selector, allowing any or
all physical inputs to be mixed into each wave input subdevice, so selecting
the Preferred Recording Device from a list of source pins doesn't make a
whole lot of sense.
Jeff Pages
Innes Corporation Pty Ltd
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