[wdmaudiodev] Re: Discovery of Analog Audio Device
- From: Hakon Strande <hakons@xxxxxxxxxxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 6 Nov 2007 11:53:43 -0800
I found it
http://www.microsoft.com/whdc/device/audio/analog_impedance.mspx
Sincerely,
Hakon Strande | Windows Sound Team PM | (p) 425.705.0637
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of
Ernest_Burghardt@xxxxxxxxxxxx
Sent: Tuesday, November 06, 2007 10:10 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Discovery of Analog Audio Device
Thanks Hakon, I would love to read that whitepaper.
Ernest L. Burghardt
Software Engineer
Logitech
360-256-3239 (office)
Hakon Strande To
<hakons@xxxxxxxxx <wdmaudiodev@xxxxxxxxxxxxx>
icrosoft.com> cc
Sent by: Subject
wdmaudiodev-bounc [wdmaudiodev] Re: Discovery of
e@xxxxxxxxxxxxx Analog Audio Device
11/06/2007 09:57
AM
Please respond to
wdmaudiodev@freel
ists.org
Some vendors use Impedance Sensing to guess the nature of the analog
peripheral connected as impedances are different from Microphones to
headphones to speakers to line level devices. It is hardly an exact science
but the results are surprisingly accurate when those who implemented it
knew what they were doing...
There was an MS white paper published on the subject but now I can't find
it on our web site. I'll keep looking.
Sincerely,
Hakon Strande | Windows Sound Team PM | (p) 425.705.0637
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of
Ernest_Burghardt@xxxxxxxxxxxx
Sent: Tuesday, November 06, 2007 9:35 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Discovery of Analog Audio Device
Hi All,
Is there a way to know what the analog audio device (i.e. speaker) that is
plugged into the jack?
Thanks in advance,
Ernie
******************
WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
URL to WDMAUDIODEV page:
http://www.wdmaudiodev.com/
******************
WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
URL to WDMAUDIODEV page:
http://www.wdmaudiodev.com/
******************
WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
URL to WDMAUDIODEV page:
http://www.wdmaudiodev.com/
******************
WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
URL to WDMAUDIODEV page:
http://www.wdmaudiodev.com/
Other related posts:
