[wdmaudiodev] Re: sync clocks of two filters

  • From: "Andy Voelkel" <andy@xxxxxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Thu, 31 Mar 2005 11:11:58 -0800

I doubt you can do what you want to do, just because of the hardware issues.
There would have to be a clock sync stream coming from the PC and
controlling the audio conversion process on the USB device. That isn't
trivial. Usually this sort of thing is accomplished by hardware word clock
inputs and outputs on the audio devices.


- Andy



From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Faby, Paul
Sent: Wednesday, March 30, 2005 9:25 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] sync clocks of two filters


 Is it possible to lock the clocks of two filters?  I'm trying to support
multiple usb audio devices(the same type of device) inside of my ASIO
interface(wraps directks).  I was hoping that I would be able to (from user
land) be able to create the render and capture filters of the two devices
and lock there clocks together.  Is this possible?  If not, is it possible
for me to write an avstream driver that would get a hold of the two devices
and lock their clocks?





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