[wdmaudiodev] Re: DirectKS not working properly on XP with an USB device
- From: Dominik Peklo <dominikp@xxxxxxxxxxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Sat, 26 Jun 2010 08:40:04 +0800
Hi Maciej,
Most software players supporting Kernel Streaming as a means of output
generally won't work with XP's USB Audio Class driver. Yet a project called
ASIO4All successfully uses it. You might want to contact the author Michael
Tippach via feedback@xxxxxxxxxxxx and ask him how he's done it.
http://www.asio4all.com/
Regards,
Dominik
On Jun 25, 2010, at 23:44 , Maciej Cieślak wrote:
> Hello,
>
> I am developing an application that plays audio on an USB device using
> Kernel Streaming. This program is designed to work with one specific
> device.
> When I am using the DirectKS sample (slightly modified to pick the
> right device) on Vista or 7, everything works properly. However, on XP
> I experience some serious problems: the packets are returned not in
> order and irregularly. Other devices (such as standard sound card)
> work perfectly with DirectKS on the same system.
> The problem is very interesting for me, because KS is supported in
> Windows XP and not supported in Vista and above, and I experience
> something completely opposite.
>
> I have contacted the device manufacturer asking whether this can be
> caused by the device driver, and I got the answer "we always relied on
> the generic Windows drivers" and he advised me to post to this
> newsgroup.
>
> Does anybody have an idea what might be causing this behavior?
>
> Best regards,
> Maciej
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