<div dir="ltr">Hi Chris et al,<div>Thanks so much... I thought I might be using jack incorrectly... So now I'm trying to use jack as explained by Chris above. Here's some output:</div><div><br></div><div><div>gibbyj@LinuxBVR:~/Downloads$ jackd -R -d alsa -d hw:2 -p 128 -n 2</div><div>jackd 0.124.2</div><div>Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn and others.</div><div>jackd comes with ABSOLUTELY NO WARRANTY</div><div>This is free software, and you are welcome to redistribute it</div><div>under certain conditions; see the file COPYING for details</div><div><br></div><div>JACK compiled with System V SHM support.</div><div>`default' server already active</div><div>no message buffer overruns</div><div><br></div></div><div>I am not sure what it means when it says 'default' server already active. I thought I had stopped the server with qjackctl. When I start it as above, and then start qjackctl, qjackctl still thinks the server is stopped. (Kinda wish I had jack2, seems like it has better admin functions.)</div><div><br></div><div>Here's some more output; there's a jackdbus process; why is that here, I thought that was jack2?</div><div><br></div><div><div> 4611 gibbyj 20 0 813480 76580 56480 S 0.3 1.0 2:08.47 qjackctl </div><div> 4413 gibbyj 20 0 223540 17504 16136 S 0.3 0.2 1:31.74 jackdbus </div><div> 4611 gibbyj 20 0 813480 76580 56480 S 0.3 1.0 2:08.48 qjackctl </div><div> </div><div>gibbyj@LinuxBVR:~/Downloads$ killall jackd</div><div>jackd: no process found</div><div>gibbyj@LinuxBVR:~/Downloads$ ps -ef |grep jackd</div><div>gibbyj 4413 1 0 Jan17 ? 00:01:31 /usr/bin/jackdbus auto</div><div>gibbyj 12590 3958 0 02:12 pts/1 00:00:00 grep jackd</div><div>gibbyj@LinuxBVR:~/Downloads$</div></div><div><br></div><div>No sound coming out yet with this new approach, I guess b/c I see 32 choices for hw:2 playback and I need to figure out which ones are the right ones to send the output to. But I think I'm making progress...</div><div>Thanks,</div><div>John</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jan 17, 2017 at 4:31 PM, Chris Caudle <span dir="ltr"><<a href="mailto:chris@chriscaudle.org" target="_blank">chris@chriscaudle.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Tue, January 17, 2017 2:58 am, john gibby wrote:<br>
>> I'm having trouble setting up Jack to interface between my digital piano<br>
>> application (pianoteq) and the ecasound audio processing app. I'm using<br>
>> ecasound with Ladspa plugins to create a crossover network. Ecasound<br>
>> splits the 2 pianoteq channels into six (woofer, mid & tweeter), and<br>
>> sends them to my analog outputs through alsa.<br>
<br>
</span>That is a very odd way to use jackd. The usual way is that jackd controls<br>
the audio interface.<br>
How do you even configure ecasound to present a jack interface and also<br>
connect to the ALSA hardware directly? Most software supports using<br>
either ALSA directly or jack, but not both simultaneously.<br>
<br>
If you want to continue to use ecasound the more typical way would be<br>
configure jackd to control the output hardware, configure ecasound to use<br>
jack, and then use whatever connection configuration tool you want (e.g.<br>
qjackctl or jack_connect) to connect the output of your audio applications<br>
to the inputs of ecasound, and the outputs of ecasound to the sound card.<br>
<br>
As others pointed out something like zita_lrx might fit into a jack setup<br>
more easily, but if you already have ecasound configured and ecasound can<br>
use jack then the setup I describe above might be the easiest way to<br>
modify what you currently have.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Chris Caudle<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
<br>
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