<br><br><div class="gmail_quote">2011/3/27 Peder Hedlund <span dir="ltr"><<a href="mailto:peder@musikhuset.org">peder@musikhuset.org</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im">Quoting Cedric Roux <<a href="mailto:sed@free.fr" target="_blank">sed@free.fr</a>>:<br>
<br>
</div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">
----- "Paul Davis" <<a href="mailto:paul@linuxaudiosystems.com" target="_blank">paul@linuxaudiosystems.com</a>> wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
On Fri, Mar 25, 2011 at 7:09 PM, Cedric Roux <<a href="mailto:sed@free.fr" target="_blank">sed@free.fr</a>> wrote:<br>
<br>
> something. There are issues, like jack refusing to work with<br>
> buffers of less than 512 frames (I am not with a rt kernel)<br>
<br>
when you say "refuse" do you mean "will not start" or "performs<br>
badly"?<br>
</blockquote>
<br>
jackd -d alsa -C hw:2 -P hw:0 -r 44100 -p 256<br>
<br>
leads to:<br>
<br>
jackdmp 1.9.6<br></div><div class="im">
JACK server starting in non-realtime mode<br>
Cannot lock down memory area (Cannot allocate memory)<br>
creating alsa driver ... hw:0|hw:2|256|2|44100|0|0|nomon|swmeter|-|32bit<br>
</div></blockquote>
<br>
1. You aren't running jack with realtime priorities and memory locking.<br>
Make sure you're in the audio group, have "@audio - rtprio 99" and<br>
"@audio - memlock unlimited" in /etc/security/limits.d/audio.conf and<br>
start jack with a "-P 70" flag prior to "-d alsa".<br></blockquote><div>As it's Ubuntu 10.10, this configuration takes place in /etc/security/limits.d/audio.conf instead of /etc/security/limits.conf !<br>
jy<br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<br>
2. Built in Intel soundcards usually work better with 3 periods per buffer<br>
<br>
3. Why are you using different soundcards for capture and playback?<div><div></div><div class="h5"><br>
<br>
<br>
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