[ddots-l] MOTU WDM Drivers Are Better Than There ASIO Ones
- From: "Phil Muir" <ddots@xxxxxxxxxxxx>
- To: <ddots-l@xxxxxxxxxxxxx>
- Date: Fri, 12 Jan 2007 08:34:06 -0000
Hi all!!
After a chance discussion with a friend on how good MOTU's WDM drivers are, I
felt I should try
using my MOTU soundcards WDM drivers, rather than the ASIO ones. Guess what, I
have found there is
25% les CPU usage when using the WDM drivers, over the ASIO ones. I have also
been able to
significantly drop the buffers in the MOTU control panel too.
Before, I was using the ASIO drivers and running with buffers in the control
panel of 256. My CPU
usage was around 30% on large projects. I then moved the buffer down to 64 and
tested with the ASIO
drivers. The CPU usage, jumped to around 76% and some crackling was occuring.
So, just for fun, I
changed from ASIO to WDM, reprofiled the card, and the CPU usage, jumped back
to around 51%. Note:
I have also found that every time you change the buffers in your sound cards
external control panel
that it is necessary to reprofile the cards WDM driver. I previously hadn't
done this and because
of the strange audio artifacts that I was hearing, had wrongly asumed that I
had set the latency
too low. In my case, I new this couldn't be right, as I had actually moved the
buffers in the
control panel from 64 to 128 and higher.
Conclusion, use MOTU's WDM drivers, as they are much better written.
Regards, Phil Muir
P J Muir Productions
Music And Audio Production
URL:
www.philmuir.com/
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