0007232: No audiochannels created when adding carla-patchbay or carla-rack (lv2/vst) to a midi track.

ID	Project	Category	View Status	Date Submitted	Last Update

0007232	ardour	bugs	public	2017-02-10 21:20	2020-04-19 20:18

Reporter	rghvdberg	Assigned To	paul
Priority	normal	Severity	minor	Reproducibility	always
Status	closed	Resolution	fixed
Platform	Linux	OS	Mint	OS Version	18
Product Version	5.X git (version in description)

Summary	0007232: No audiochannels created when adding carla-patchbay or carla-rack (lv2/vst) to a midi track.
Description	When adding instruments to a midi track ardour creates audio channels. Carla-Patchbay can be (is often?) used to load one or more instruments. However, I found that no audio channels created when adding carla-patchbay (lv2/vst) to a midi track. Workaround is to click the pinout -> manual config and add the audio channels manually.
Steps To Reproduce	Create midi track Add carla-patchbay (lv2 or vst) Observe that no audio channels are created and thus no audio from carla
Additional Information	Ardour 5.5.770 "The Plateaux of Mirror" (rev 5.5-770-g0835309) Intel 64-bit tiny screenshot attached
Tags	No tags attached.

rghvdberg 2017-02-10 21:20 reporter	Selectie_152.png (6,319 bytes) Selectie_152.png (6,319 bytes)

x42 2017-02-10 21:27 administrator ~0019362	Did you create the MIDI track with strict-i/o (a plugin can neither add nor remove ports), if so: try flexible-i/o. This is a setting when creating the track and can later be changed in the context menu (right click on the mixer strip header)

x42 2017-02-10 21:30 administrator ~0019363	PS. one exception to strict-i/o are MIDI instruments (if they announce themselves as instruments -- or for plugin standards without categorization: plugins that have 1 midi in, 0 audio inputs, >= 1 audio out) see http://manual.ardour.org/signal-routing/signal-flow/

rghvdberg 2017-02-12 09:08 reporter ~0019367	flexible-i/o did the trick ! Thanks I guess this one can be closed ?

paul 2017-02-12 11:03 administrator ~0019369	see notes. reporter can close.

system 2020-04-19 20:18 developer ~0023716	Issue has been closed automatically, by Trigger Close Plugin. Feel free to re-open with additional information if you think the issue is not resolved.

Date Modified	Username	Field	Change
2017-02-10 21:20	rghvdberg	New Issue
2017-02-10 21:20	rghvdberg	File Added: Selectie_152.png
2017-02-10 21:27	x42	Note Added: 0019362
2017-02-10 21:30	x42	Note Added: 0019363
2017-02-12 09:08	rghvdberg	Note Added: 0019367
2017-02-12 11:03	paul	Note Added: 0019369
2017-02-12 11:03	paul	Status	new => resolved
2017-02-12 11:03	paul	Resolution	open => fixed
2017-02-12 11:03	paul	Assigned To	=> paul
2020-04-19 20:18	system	Note Added: 0023716
2020-04-19 20:18	system	Status	resolved => closed