[linux-audio-dev] BruteFIR + jack = crackling noise?

[David Gerard Matthews]

Patrick Shirkey wrote:

> >yes, you can move audio over USB. the question is not whether you can,
> >but whether you should, and my feeling is that professional or
> >semi-professional users should avoid it completely, regardless of what
> >Yamaha, Tascam, Edirol and others who want to provide *cheap*
> >connectivity to home studio users say in the advertisements.
>
> Actually they're not cheap at all. The main benefit of usb audio 
> devices is the portability. However, now that firewire is becoming a 
> much cheaper alternative usb devices are probably going to become 
> obsolete like the Laser disc has. 

Umm, I've been shopping for an audio interface for a laptop I hope to 
purchase within the next few months.  USB audio devices start around 
$200 US.  I haven't seen FireWire for under $500 US.  If anyone knows of 
a cheaper FireWire card, I need to know about it.  
Yes, I know USB is pretty much broken for audio.  But my main desptop 
box can handle most of the serious duties (it's got a Delta 1010) - I 
just need something cheap, portable, and stereo for gigs with the 
laptop.  From what I've seen and read, USB does perform this task 
adequately, even if it does require ugly driver hacks.
-dgm

>
>
> But it would be very nice if I could use my usb quattro to manipulate 
> the sounds of my bandmates in realtime at lowlatency. I tried with ssm 
> at 64 bytes and there was noticible lag so we couldn't do anything live.
>
> The best I can get out of jack is 1024 but 2048 is more reliable.
>
> Having to use PCI devices is a PITA when you are trying to gig at 
> different venues as they require a lot more space. There is also 
> something elegant about being able to instantly connect your setup to 
> a different computer by simply moving the USB cable.
>
> However, it could be said that any sound device running on a PC is a 
> waste of time for serious musos as you cannot beat the sound quality 
> from a top of the line recording studio.
>
> Each to their own but I would just like to be able to show people the 
> true potential of Linux Audio and currently I cannot unless I get a 
> PCI device. That, IMO, is what really sucks.
>