Re: Ardour as a midi timecode slave

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On Thu, Apr 29, 2021 at 4:43 PM Paul Davis <[email protected]>
wrote:

>
>
> On Thu, Apr 29, 2021 at 8:17 PM robertlazarski <[email protected]>
> wrote:
>
>>
>>
>> jack_transport does exactly what I want via the start / stop commands.
>> However it is an interactive shell program. I want to execute each
>> jack_transport command with a background process at a timed interval using
>> jltctrigger (also for Adrour and OSC), for discussion purposes identical to
>> execution in crontab. Does jack_transport have to be interactive? I have
>> done some "expect" language interactive shell programming but thought i'd
>> ask.
>>
>
> echo 'play' | jack_transport
> echo 'stop' | jack_transport
>
>
Perfect!

All in background processes I was able to (a) start / stop ardour via OSC,
and (b) play / stop Rosegarden with incoming midi clock and midi System
Real-Time Messages using the jack_midi_clock program that sends messages
when controlled by jack_transport play / stop.

Thanks a lot to everyone who helped.
Robert

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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Thu, Apr 29, 2021 at 4:43 PM Paul =
Davis &lt;<a href=3D"mailto:[email protected]">paul@linuxaudiosyst=
ems.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"=
margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-lef=
t:1ex"><div dir=3D"ltr"><div dir=3D"ltr"><div style=3D"font-family:arial,he=
lvetica,sans-serif"><br></div></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Thu, Apr 29, 2021 at 8:17 PM robertlazarsk=
i &lt;<a href=3D"mailto:[email protected]" target=3D"_blank">robertl=
[email protected]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote"=
 style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);p=
adding-left:1ex"><div dir=3D"ltr"><div dir=3D"ltr"><br></div><div style=3D"=
font-family:arial,helvetica,sans-serif"></div><div class=3D"gmail_quote"><d=
iv></div><div><br></div><div>jack_transport does exactly what I want via th=
e start / stop commands. However it is an interactive shell program. I want=
 to execute each jack_transport command with a background process at a time=
d interval using jltctrigger (also for Adrour and OSC), for discussion purp=
oses identical to execution in crontab. Does jack_transport have to be inte=
ractive? I have done some &quot;expect&quot; language interactive shell pro=
gramming but thought i&#39;d ask. <br></div></div></div></blockquote><div><=
br></div><div><div style=3D"font-family:arial,helvetica,sans-serif">echo &#=
39;play&#39; | jack_transport</div><div style=3D"font-family:arial,helvetic=
a,sans-serif">echo &#39;stop&#39; | jack_transport</div><div style=3D"font-=
family:arial,helvetica,sans-serif"><br></div></div></div></div></blockquote=
><div><br></div><div>Perfect! <br></div><div><br></div><div>All in backgrou=
nd processes I was able to (a) start / stop ardour via OSC, and (b) play / =
stop Rosegarden with incoming midi clock and midi System Real-Time Messages=
 using the jack_midi_clock program that sends messages when controlled by j=
ack_transport play / stop. <br></div><div><br></div><div>Thanks a lot to ev=
eryone who helped. <br></div><div>Robert<br></div></div></div>

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