Hey all,<div><br></div><div>So the continuing saga is this: still no luck getting Pianoteq with JACK to equal or spank with superiority the performance of PianoTeq w/ALSA alone on my system.....</div><div><br></div><div>I found the following information: the info from the /proc/asound output that Paul asked me to check out confirmed that at comparable settings, JACK choked where ALSA smoked. I had ALSA down to a period of 64 and 3 periods/buffer (hardware bufsize of 192) at a sample rate of 48000. The same setting of jackd (&#39;jackd -dalsa -dhw:0,0 -r48000 -p64 -n3 -S&#39;) didn&#39;t agree with Pianoteq....</div>
<div><br></div><div>So...here&#39;s my dilemma. I have a live show coming up where I&#39;d prefer to use the superior harpsichord sound of Pianoteq, but I don&#39;t want to risk a lock-up or xruns or worse in a live concert. So I would have to use ALSA...BUT....I also need to switch to playing a live kalimba through some Csound effects right after playing a harpsichord, and Pianoteq under ALSA will not stand for another app opening and sharing the soundcard like JACK will allow (ALSA will block I/O).</div>
<div><br></div><div>So what can I do?</div><div><br></div><div>Best,</div><div>AKJ<br><div><br><div class="gmail_quote">On Sun, Jun 12, 2011 at 2:40 AM, Aaron Krister Johnson <span dir="ltr">&lt;<a href="mailto:aaron@akjmusic.com">aaron@akjmusic.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi all--<div><br></div><div>I&#39;m wondering if anyone else has experienced this:</div><div><br></div><div>I&#39;m considering purchasing PianoTeq, but I wanted to try the demo. It seems to work better with just the alsa driver than it does with jack, a reversal of the usual situation.</div>

<div><br></div><div>I tested this several times by playing fast glissandi on the default piano preset. Each time, my little EEE-PC netbook under jack choked with xruns and a brief silence while PianoTeq &#39;reset&#39; itself, but Alsa alone chugged away with no xruns unless there was an extreme amount of load....</div>

<div><br></div><div>I&#39;m wondering if anyone can comment on this. It seems odd, especially since the jack developers claim jack adds no latency by itself to the picture in any situation---so, do we have a situation where the code is better written for the alsa driver than for jackd? It seems we do, in this case....</div>

<div><br></div><div>Best,</div><div>AKJ</div><div><br></div><font color="#888888"><div><br></div><div><br clear="all"><br>-- <br>Aaron Krister Johnson<br><a href="http://www.akjmusic.com" target="_blank">http://www.akjmusic.com</a><br>
<a href="http://www.untwelve.org" target="_blank">http://www.untwelve.org</a><br>
<br>
</div>
</font></blockquote></div><br><br clear="all"><br>-- <br>Aaron Krister Johnson<br><a href="http://www.akjmusic.com" target="_blank">http://www.akjmusic.com</a><br><a href="http://www.untwelve.org" target="_blank">http://www.untwelve.org</a><br>
<br>
</div></div>