I'm trying to use multiple Ableton Looper plugins (I'll just talk about 2 of them here for sake of simplicity but really I'll be using 8 ).
Each Looper (called Loopr1, Loopr2... etc) is in a different track and each gets audio independently from the Ext. Input. (I mean that Loopr1 doesn't feed into Loopr2 or anything - they're connected in parallel you might say)

Anyway, I'm using a MIDI foot controller (SoftStep) and LoopBe30 (virtual MIDI ports) to send MIDI CCs that trigger the Rec, Stop and Play buttons on the Loopers. (the little rec. button, not the big one. I don't use the big button at all because it changes to overdub [+] which I don't use).
I record short 'samples' of live audio (guitar) into each looper and can then play them back, pitched up/down and reversed, etc. All well and good.
However, because my feet hitting my foot controller are NOT precise metronomes, I want/need to be able to quantize the recording into each looper to a certain length (probably 1/8 but ideally I'd be able to adjust to 1/4 and other lengths)
Why the Looper plugin Quantization settings won't do the job:
I know you can set quantization lengths on each looper. Believe me, I do know this. Problems arise, however, when using the built-in looper:
1) For Looper's quantization to work, the whole set must be 'playing' i.e. global play button ON
1b) If I have the Looper quantized to 1/4 or 1 bar or any length, then when the set is already playing and I hit the looper record button or the play button, it might not start playing until the next 1/4 of the overall set/host's time position has come around. So I can step on my MIDI footcontroller but won't really know exactly when things are going to start playing or recording (as the odds are I won't be listening to a metronome or any other host-synced cues in the lead-up. I'm not a DJ or anything, just a guitarist).
I can get around the problem of 1b) by setting the looper song control option to "start & stop song". However, this creates its own set of problems when I try playing back multiple recorded samples:
2) If I have a 'sample' of recorded audio in loopr1 continuously playing back over and over, and then want loopr2 to play just once, when I stop loopr2, then the fact that loopr2 controls song "start & stop" means that when I stop the brief playback of loopr2, I will be inadvertently shutting off loopr1's playback as well, because when you stop global set playback, ALL loopers stop at that same time.
So I wouldn't really be able to get into simultaneous playback of the little samples in each of my loopers. Which was the whole point.
As a workaround for the above issues, I think I COULD just do the recording into each sample and THEN via my footcontroller send MIDI CCs to cycle through the "song control" options until "none" is arrived at - but I think this would be one or two (foot)steps too many to make this all do-able in practice, every time I want to rec one sample when just jamming.
Trying a MIDI plugin to quantize the CC messages to the Loopers:
Okay, so built-in looper quantization settings don't seem to be able to help me. What about not quantizing the loopers themselves at all and just quantizing the MIDI messages I'm using to trigger them?
Well, I've looked into quite a few MIDI utility plugins at this stage. Some of them appear to be able to just what I need. Some plugins by pizMIDI for example. There's a MIDI LFO and a MIDI step sequencer (though this only sends notes).
However I don't seem to be able to successfully get MIDI generated from a plugin in one track in Live -> to effect parameters of any of Live's Loopers. And to even get the MIDI routed into the same track as the Looper at all, I have to change the Looper track's input from taking audio to just getting input from the MIDI plugin track. So I can't even record anything with the Looper then, it seems.
(In fact, for some MIDI plugins (the VSTi's as opposed to VST's, I think), Live only seems to let you even try to route the MIDI track output to tracks that have certain types of other VST in them. I'm not even sure of the logic behind it yet because it lets me route the MIDI output to some tracks containing VST effects like Guitar Rig 4 and some tracks containing VSTi's, like LiveSlice.)
Can a MIDI plugin in Live send MIDI to a Port "outside" Live and then back into Live to the overall set? i.e. not just routed through one track.
I have a question: if I use a MIDI plugin to generate some CCs or MIDI notes and that MIDI track's output is just set to "Master", and if I also in Live's preferences -> MIDI tab have, say, OUTPUT to "LoopBe internal Port2" activated, will my MIDI track with output routed to "Master", actually be sending all it's messages to "Internal Port 2"?
I ask that because I think the possible solution it to get a MIDI plugin (i.e. MIDI step sequencer or MIDI envelope) to send MIDI to one of my virtual/internal MIDI ports, and have the same port sending MIDI to the whole set in Ableton Live, then I could use the MIDI messages coming from that port to effect the parameters (stop, rec and play buttons) on Live's loopers.
Does anyone know if that should work? Everytime I try testing it I end up really confusing myself and usually cause MIDI feedback loops
I'm kind of at my wit's end here, I've been trying to hammer out some kind of crazy workaround for this for weeks now.
Any advice or info would be hugely appreciated and thanks again for reading all this.
Here are some other VSTs I have tried already and not really had success with:
LoopyLlama
Mobius looper
LiveSlice
SoopaDoopaLooper
I've also messed around with about a million MIDI utility VSTs. I think they do what I need but I don't know if Live will let me send the MIDI from them where it needs to go (i.e. to the Loopers)
I have MAX for Live and I'm going to see if there are any MIDI utility plugins I can find along those lines that will work but I think my biggest problem is that I must just not understand how to correctly route MIDI from a plugin/VST to affect parameters of the Ableton Looper or indeed of most other plugins in other tracks.
Thanks
Ro