11 Jan
2014
11 Jan
'14
8:52 p.m.
You might try emailing Alan Stern about this. Could be related to kernel
USB handling..
James
On 10 Jan 2014 16:30, "Kees van Veen" <kees.vanveen(a)gmail.com> wrote:
[James Stone]
Not sure if it has anything to do with it, but I experience 'static'
crackles on my Presonus 1818 as well.
Have to try my old laptop still, but on my new one the crackles sometimes
coincide (from watching tail -f) with
kernel: [12263.813466] usb_submit_urb: -16
in the syslog/kern.log, and an occasional
kernel: [12261.509328] retire_capture_urb: 2 callbacks suppressed
Do you have that as well ?
I'm on Ubuntu 13.10 / 3.11.0-15-lowlatency.
Thanks,
Kees
Thanks for testing this.. Quite weird - so you
are getting crackles
even at 1024x3!!? That sounds really odd and definitely an
unacceptable performance. I have definitely not heard anything like
this on my device. I wonder if it is some kind of hardware fault. Are
you able to test it on a mac or windows comupter?
No such systems around here, so that's unlikely to happen. I might be
able to try it one of these days on different linux USB host hardware,
we'll see.