[linux-audio-user] Just how bad is USB audio?

[Dan Armak]

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On Saturday 25 January 2003 19:50, iriXx wrote:
> just my 2 euros....
> 
> under GNU/Linux, you'll find you get more mileage out of usb audio than 
> you do under windows....
> 
> i'm running on a much lower spec system than yours - i use an m-audio 
> quattro usb module (4 in 4 out + midi) on a thinkpad 600e laptop, 
> pentium II 366Mhz... and 224Mb Ram... pretty modest - and it does just 
> fine :) if i had a higher spec system like yours doubtless i'd get a lot 
> better performace... but in general i'm very pleased with the use i get 
> out of the quattro for pro-audio composition and performance.

That's good to hear. Mabe the review that says the Extigy uses 20% of a 
p4-2Ghz under Windows counts special effects that are actually done by the 
driver and not the sound card...

I wonder if there's a way to artificially flood the usb bus (ie without 
getting a high-bandwidth device somewhere) to see how much that drives the 
cpu level up?...

If you have a minute, could you please check the level of cpu usage while 
using your quattro? Fex. when playing a cd, or better yet some 4-channel 
stream, which is uncompressed so that almost the cpu activity will be due to 
the usb bus activity. If it's negligible on your system, it should be so on 
mine too. Thanks :-)

- -- 
Dan Armak
Matan, Israel
Public GPG key: http://www.gentoo.org/~danarmak/danarmak-gpg-public.key
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