[wdmaudiodev] Re: Hi,

  • From: "Nugen" <nugen@xxxxxxxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Fri, 27 Jan 2006 10:42:46 +0100

I have one WIndows XP application that must receive audio streams from an 
external USB device (that presents audio class compliant descriptors).
The application will send "at the same time"  this stream (synchronized and 
mixed with others audio source) on an another audio device - sound card - for 
playback. 
This application needs very low latency.
So i tried to find out the best way to capture audio streams from my external 
USB audio device.

I understand that i have to use DirectKS (to get a low latency) to access 
directly a device driver -- bypassing the Kmixer. 
DirectKS will help me for enumerating, opening and communicate with the device 
driver.
Do i have to develop my own Device Driver ? or can i use the UAA USB Audio 1.0 
class driver?
I'm new with this architecture and peharps i missed something...

thanks for your help

nugen



 ----- Original Message ----- 
  From: Tim Roberts 
  To: wdmaudiodev@xxxxxxxxxxxxx 
  Sent: Thursday, January 26, 2006 7:37 PM
  Subject: [wdmaudiodev] Re: Hi,


  Hakon Strande wrote: 
    Nugen probably meant the UAA USB Audio 1.0 Class Driver which indeed ships 
with Windows for many releases now.


  Ah, you are probably correct.  I hadn't made that leap.

  In that case, the answer is "yes, but it's probably not what you want to do." 
 Can you tell us what you are actually trying to accomplish?

-- 
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.

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