17 Sep
2004
17 Sep
'04
5:44 p.m.
On Fri, 2004-09-17 at 14:44, Sebastian Gutsfeld wrote:
| loading driver ..
| apparent rate = 48000
| creating alsa driver ... hw:1|hw:1|256|2|48000|0|0|nomon|swmeter|-|16bit
| control device hw:1
| configuring for 48000Hz, period = 256 frames, buffer = 2 periods
`----
256 frames at 48KHZ is a period time of ~5ms. This is really pushing it
for a USB device. It might work with a low latency kernel.
Kernel 2.4.25 with CAT_SETPCAP patch but no low
latency patch.
This is no good. You *need* a kernel patched for low latency.
BTW, I have no crackling sound using jack with the
Intel. Hopefully
someone can help me with my problem.
A PCI card is several orders of magnitude faster than USB. Best case
interrupt response latency with USB is about 1ms. With PCI it's about 5
usecs. Regardless, since you aren't running a low latency kernel, you
will get xruns triggered by random system activity.
Lee