{Solved}Qtractor(0.7.0) Midi track to Audio Export Freeze

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Hello,

I am a first time linux user(and also First time music maker..)
I am currently using KXStudio's qtractor build(version 0.7.0)
Everything is perfectly fine with qtractor(atleast so far) but Only one problem
I do a lot of synthesized music and want to export a midi track to audio file(*.flac or *.wav)
So,i have done this way Track->add track->MIDI->(In Plugins tab)add Calf organ(lv2 plugin..).
Now,Created a new midi clip by Clip->new
Composed some music....(Screeshot below screen-1.png)

Finally,saved it and started to export to audio track by right-click->export->audio->selected session and master output->and presses ok to export to (*.wav)

(screen-2.png)

At some point it just freezes of and stay there forever(screen-3.png)

after 5 minutes it just stays there(screen-4.png)

but i tried the same thing in ardour and lmms but worked flawlessly is it software thing or i have done something wrong???

i know i could record the audio in other audio editor but it would be a hassle to do so(even though jack makes it esay)

thank u so much for help and wonderful software

Permalink

probably a known problem related to JACK's alsa_in/alsa_out adapters, aka. "ALSA Bridge" on KXStudio's JACK frontend (Cadence), conflicting with jackd-freewheel run mode.

if it's the case, turn off or stop the so called alsa-bridge (from cadence) and try again; hopefully it won't freeze anymore on qtractor (or ardour) export procedure.

hth.
cheers

Permalink

yes, disabled alsa-bridges(or cadence snd-aloop daemon)...
Thanks rncbc
Now everything is fine, midi-audio export won't freeze
But ardour and lmms works fine even with alsa-bridges enabled
Anyway no problem i can disable alsa-bridges
Oh God!!! there's another problem audio export works fine without freezing(or crashing) but the actual audio file is empty
i exported in both(flac & wav) formats and played in vlc,audacious,smplayer,ffmpeg,snd,audacity but the time,bit depth,sample rate information is present
but don't contain the actual sound,I can send u audio files but where to upload it, i am new to linux audio
after long endevour of searching for daw i settled with qtractor please help me...

Permalink

Yes i had Calf Organ(lv2) plugins on MIDI track
Anyway i had the test files uploaded(above)
So please check it with u tell me what is the problem??

you have dedicated audio output ports on your MIDI Track 1! (see attachment qtractor-926-6707-1.png).
-- dedicated audio output ports are not rendered on audio export, only (internal) audio output buses;
please, turn off dedicated audio outputs option and retry audio export on Master output bus (the default).

hth.
cheers

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