[wdmaudiodev] Re: Anyone here worked with Windows CE?
- From: "Jerry Evans" <jerry@xxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Mon, 5 Mar 2007 23:44:16 -0000
Hi Andy,
Not sure about Vista yet.
Another thought: See http://www.on-time.com/rttarget-32.htm (no affiliation).
You'll still have to do some work if you have PCI kit. Using USB h/w however
you can work directly with the isoch stream with a 1ms/125us frame time. The
loader etc understands Win32 binaries so you can build/debug with VS 03/05.
Good luck!
----- Original Message -----
From: Voelkel, Andy
To: wdmaudiodev@xxxxxxxxxxxxx
Sent: Monday, March 05, 2007 10:48 PM
Subject: [wdmaudiodev] Re: Anyone here worked with Windows CE?
Hi Jerry,
I missed your second paragraph. I read about WaveRT drivers and Vista audio
support. Maybe I missed something, but what I read seemed to indicate that
Vista's audio enhancements would improve the average user experience with
latency, but wouldn't provide a definitive advantage over a tuned Windows XP
machine running ASIO drivers on PCI hardware. Am I wrong?
- Andy
------------------------------------------------------------------------------
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Jerry Evans
Sent: Sunday, March 04, 2007 6:33 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Anyone here worked with Windows CE?
If good tools & v. low latency are the issue then consider OSX. PPC or Intel
both have excellent prosumer hardware available plus Apple CoreAudio is very
easy to use. You should be able to reliably work with 64 sample buffers.
Or try Vista, a 25 buck Terratec soundcard and this BSD licensed driver:
http://cmediadrivers.googlepages.com/. If WaveRT drivers and Vista CoreAudio
live up to promise then you might get all you want.
Keep us posted!
Jerry
----- Original Message -----
From: Voelkel, Andy
To: wdmaudiodev@xxxxxxxxxxxxx
Sent: Friday, March 02, 2007 10:24 PM
Subject: [wdmaudiodev] Anyone here worked with Windows CE?
Hi all,
Having just gone through another frustrating afternoon trying to reduce
Windows audio latency, I am motivated once again to think of alternatives for
real time audio algorithm development. I have a couple applications where a
minimum 4.5 millisecond latency is just not attractive.
I will probably have to use standalone DSP cards for development in order
to avoid this problem, but the development tools on such boards just can't
compare to Visual Studio.
I have thought before of building a Windows CE target using a standard
Pentium motherboard, and cross developing from a host Windows XP machine. I've
heard that the Visual Studio tools for this sort of cross development are
pretty good. I would imagine that Windows CE could be configured to have much
lower latency than Windows XP.
The problem is that the audio driver model is different, and I am afraid
that finding a Windows CE driver for multichannel audio IO would be impossible,
and that developing a driver myself would be very time consuming.
Has this idea occurred to anyone else? Is it even feasible? Has anyone
succeeded? Does anyone have opinions on related subjects?
Thanks!
- Andy Voelkel
CONFIDENTIALITY NOTICE: This e-mail transmission, and any documents, files
or previous e-mail messages attached to it, may contain information that is
confidential and/or legally privileged. If you are not the intended recipient,
or a person responsible for delivering it to the intended recipient, please DO
NOT disclose the contents to another person, store or copy the information in
any medium, or use any of the information contained in or attached to this
transmission for any purpose. If you have received this transmission in error,
please immediately notify the sender by reply email or at
mailto:privacy@xxxxxxxxxxxxxxx, and destroy the original transmission and its
attachments without reading or saving in any manner.
Other related posts:
