[wdmaudiodev] Re: White Papers now available

  • From: "carsten schulz" <carsten.schulz@xxxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Mon, 9 Dec 2002 13:12:09 +0100

I have set up a download area at www.wdmaudiodev.de similar to the one
we had at Yahoo Groups. I have also uploaded the DirectKS.zip to that
site.

If there are any problems please let me know.

Best Regards,
Carsten Schulz
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List Owner - WDMAUDIODEV
http://www.wdmaudiodev.de/
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> -----Original Message-----
> From: wdmaudiodev-bounce@xxxxxxxxxxxxx 
> [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Amar Kumar
> Sent: Monday, December 09, 2002 5:47 AM
> To: wdmaudiodev@xxxxxxxxxxxxx
> Subject: [wdmaudiodev] Re: White Papers now available
> 
> 
> 
> 
> Hi,
> Can anyone tell me from where i can get white papers ....i 
> could not find it
> may be because I have not got that mail ...may be missed that mail ...
> 
> Thanks for ur help iin advance...
> 
> 
> Thanks,
> Amar Kumar.
> 
> -----Original Message-----
> From: wdmaudiodev-bounce@xxxxxxxxxxxxx
> [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]On Behalf Of Mike Garrett
> Sent: Sunday, December 08, 2002 12:27 AM
> To: wdmaudiodev@xxxxxxxxxxxxx
> Subject: [wdmaudiodev] Re: White Papers now available
> 
> 
> 
> Hello Alejandro (and Michel),
> 
> The problem with KMixer is not just latency but also sample rate
> conversion, bit depth stuff, etc.  For Pro Audio, you have to be
> confident that the bits at the sound card converters are 100% 
> identical
> to what the application software sent to the kernel (e.g. so you can
> pass the "180% out of phase = silence"  test.)
> 
> Mike Garrett
> 
> -----Original Message-----
> From: wdmaudiodev-bounce@xxxxxxxxxxxxx
> [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Michel Jullian
> Sent: Friday, December 06, 2002 7:36 AM
> To: wdmaudiodev@xxxxxxxxxxxxx
> Subject: [wdmaudiodev] Re: White Papers now available
> 
> 
> 
> Hi Alejandro,
> 
> Er...I feel a bit foolish making such an obvious suggestion...
> 
> Why don't you lower KMixer latency from the ridiculous 
> present 30 ms to
> say one or two ms (this could be a user preference -with a 
> default value
> of 30 ms if you must-, or could even be set automatically depending on
> hardware performance)?
> 
> The performance hit due to overhead of calling the 
> corresponding routine
> more often would go totally undetected IMHO.
> 
> This way nobody would have to monopolize the audio hardware, 
> or to fool
> around with other APIs than the standard ones : it's quite 
> simple to get
> acceptable (< 10ms) output latency using DirectSound on 
> Win98SE/ME, it's
> a bit silly to get exactly 30ms more on more modern OSes (with
> notoriously better scheduling moreover!)
> 
> What am I missing ?
> 
> Yours,
> Michel
> --
> Michel Jullian
> Exbang Industries/Sequensys
> 
> Alejandro Goyen wrote:
> >
> > A pleasure to meet you all. My name is Alejandro Goyen, Core Audio
> > Program Manager at Microsoft.
> >
> > The low latency platform is open for discussion and I would 
> be pleased
> 
> > to hear about your requirements.
> >
> > Thanks, Alejandro.
> >
> > Alejandro Goyen
> > Core Audio Program Manager
> > Microsoft Corporation
> >
> > _________________________________________________________________
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