You are here

LinuxSampler

Why when using LinuxSampler within Qtractor (like plagin) the sound is steep&?
When using Linuxsampler with QJackctl the sound is perfect!
What settings I can use?

Forums: 
rncbc's picture

sorry to answer with questions though.

what you mean by "sound is steep&" ?

and what has qjackctl to do with linuxsampler?

the way to setup one linuxsampler plugin instance (is that -lv2? or -dssi?) often goes by using a LSCP client like qsampler, jsampler or plain telnet/netcat !

take care
cheers

I mean this (sorry for my English):
https://new.vk.com/video-88721425_456239042
In another plugins the same "steep" that is absence of sustain.
I wonder why? Сan I correct it?

rncbc's picture

i can't really tell what's going on, besides hearing a loss in note release tail on the second part on that video.

who or what is actually sending the notes to linxusampler over there? from the linked screencast is not that really obvious (or not at all) that it's being sequenced from qtractor, nor it's there any evidence that a linuxsampler plugin is involved or within...

there's not enough information, sorry.

are you comparing the same plugin, and most importantly, it's the sole or only one and single component on the signal path, on either case? i guess it's linuxsampler-lv2, while 1) inserted on a midi track in ardour and 2) in qtractor ?

again, the video is not at all clear about which is sequencing midi notes at all and whether linuxsampler-lv2 is the only plugin involved in chain.

take care.
cheers

I am sending the notes to linxusampler in first and second part of that video using the same midi controller and the same sample and the same plugin. But in Qtractor I have a loss in note release tail.
I don't understand why because I play equally.
How I can get rid of that loss in note release?

rncbc's picture

it is not that evident on the videos that you're using linuxsampler as a plugin on ardour (must be lv2) or qtractor (maybe lv2 or dssi).

i suppose you're using the auto-monitor filtering facility in qtractor (current track monitoring). however, one thing i should ask anyway is, from the qtractor part of the video, one can see that se a MIDI closed loop to the MIDI controller:

iii You Rock Guitar -> Qtractor(in), and then, Qtractor(out) -> iii You Rock Guitar

is that last ALSA-MIDI feedback connection to the controller really necessary? does it also apply as same connections (JACK-MIDI i suppose) when you're using ardour?

note that, when in (auto-)monitor mode, all incoming MIDI events on input will pass-though to output as is (in fact, that's exactly what the MIDI monitoring concept is in qtractor, kinda an internal MIDI-thru).

maybe, just maybe, the MIDI feedback loop is interfering with the controller, triggering note-off events (or else) too early?

i'm puzzled by the reported behavior, as you probably are. but you can try to record some phrases into a MIDI clip, on the MIDI track where the linuxsampler instrument plugin is inserted, of course, and after that, rewind and playback what you've just recorded and verify whether it sounds the same as loosing note release tails or else?

hth.
cheers

I disconnect Qtractor(out) -> iii You Rock Guitar and nothing changed.
I am using now fluidsynth and have same result.
Yes. When I rewind and playback what I've just recorded It sounds normal without a loss in note release tail.

rncbc's picture

Yes. When I rewind and playback what I've just recorded It sounds normal without a loss in note release tail.
so, something gets weird at the monitoring side of, things...

can you try using some other midi controller input? like vkeybd or vmpk? or also, keep an eye on the raw data that gets feeded by that rock guitar sth.? try to record capture it's input directly into an smf via arecordmidi, then play it back onto qtractor via aplaymidi. somewhere, somewhen, things gotta give, something... :)

cheers

Add new comment