[LAU] qtractor questions
rosea.grammostola at gmail.com
Mon Mar 22 16:38:04 EDT 2010
On Mon, Mar 22, 2010 at 8:55 PM, rosea grammostola <
rosea.grammostola at gmail.com> wrote:
> On Mon, Mar 22, 2010 at 8:47 PM, Rui Nuno Capela <rncbc at rncbc.org> wrote:
>> On 03/22/2010 07:18 PM, rosea grammostola wrote:
>> > On Mon, Mar 22, 2010 at 7:50 PM, Rui Nuno Capela <rncbc at rncbc.org
>> > <mailto:rncbc at rncbc.org>> wrote:
>> > On 03/22/2010 10:07 AM, rosea grammostola wrote:
>> > >
>> > > Some questions about qtractor:
>> > >
>> > > * You can't render the midi track to wav? How do you get an
>> > > session into an audio file?
>> > midi is meant to be rendered by a sound generator module, a synth, a
>> > sampler, a stand-alone or an instrument plugin (dssi, vsti or lv2);
>> > can drive external midi outboard equipment as well, which in fact
>> > and still is the primordial goal of a midi sequencer like qtractor.
>> > qtractor does not include/integrate any midi sound generator per se,
>> > you cannot render midi tracks directly to audio files. but you can
>> > record/bound the sound modules output back into qtractor, ardour or
>> > other jack enabled hard-disk recorder if you prefer.
>> > qtractor exports audio tracks as audio files; similarly it exports
>> > tracks as standard midi files, nothing else ;)
>> > >
>> > > * Why are there no new audio tracks showing up in Jack when
>> > you add
>> > > a new audio track, like ardour has? Wouldn't this make it
>> > > easy to use it with other apps (for example ardour)?
>> > qtractor is not ardour (tm) -- internal signal flow models are not
>> > same, not even close ;)
>> > re. qtractor, each "input bus" feeds a track on recording; each
>> > feeds an "output bus" for mixdown/merging on playback; it is these
>> > devices that are exposed as jack audio ports or alsa-seq ports
>> > from or to the outside world.
>> > again, buses in qtractor are not the same as buses in ardour. in
>> > qtractor, buses are what you ever see in the jack graph. you never
>> > tracks ;)
>> > I don't understand it totally. Let assume I have to midi tracks in
>> > qtractor and I want to record those to two audio tracks in qtractor. But
>> > there is only master_in1 and master_in2.
>> > When I add an audio track, I can only choose for master_in. Also for new
>> > audio track number two, master_in. How to route output of synth 1 to
>> > track1 and synth 2 to track 2?
>> you create more buses. at least one more in addition to master which is
>> indeed stereo (2channels) and created by default ootb. you can setup
>> your workspace as with many ins and outs you need and make it a template
>> for all your future new blank/scratch sessions.
>> so, recipe is: create one additional bus, call it master_2 for instance
>> and assign it as input for audio track_2; audio track_1 stays on Master
>> for input. now you connect synth_1/outs to Master/ins and synth_2/outs
>> to master_2/ins. voilá :)
>> remember now that qtractor session templates may get very handy here,
>> for not having to be doing this all the time, as it also includes
>> connection recall. alas, it won't start your external synths
>> automatically, you'll have to do that manually, business as usual,
>> qtractor will wait for them appearing on the radar to reconnect. yep,
>> qtractor is not a full-blown session manager, i know. let's leave that
>> for someone else ;)
> Mmh I tried to do what you said, but I get an segmentation fault now, and
> can't restart the session (just an test session, nothing important)...
> bash: line 1: 6175 Segmentation fault qtractor
Which mode should I use for the new bus? Duplex or input (or output)?
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