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 Post subject: Looper plugin & M4L pitch shifting device: solving latencies
PostPosted: Fri Apr 19, 2013 2:20 pm 

Joined: Thu Jan 05, 2012 6:22 pm
Posts: 57
Location: Magdeburg (Germany)
I think the looper plugin could get an update/upgrade.

Image
(Screenshot with high resolution)

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(Screenshot with high resolution)

Any hints and ideas are welcome!
Big up for helping!

btw: sorry for my crappy english.

edit: There are no global latencies if Leo's Pitch Shifter is activated! Not even if you are using like me 7 of them - 1 instance per each channel of them. Latencies are only audible of the pitched signal if you crank up the knob "dry/wet" of the pitch shifter. The clean signal still got no audible latencies.

My hardware: MacBook Pro 2,7GHz, 16GBRAM, Ableton Live 9.0.2 Stable x86 | RME Fireface UCX | Ableton Live Suite 9.0.2 x86

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 Post subject: Re: Looper plugin & M4L pitch shifting device: solving latencies
PostPosted: Tue Apr 23, 2013 1:19 pm 

Joined: Thu Nov 08, 2007 3:12 am
Posts: 911
you should contact the support and maybe link to this thread, it's very uncertain if it read here.

best regards


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 Post subject: Re: Looper plugin & M4L pitch shifting device: solving latencies
PostPosted: Wed Apr 24, 2013 10:08 am 

Joined: Thu Jan 05, 2012 6:22 pm
Posts: 57
Location: Magdeburg (Germany)
Hi,

the support was connected too some days ago. But the answer doesn't fix it:

"...
Thanks a lot for your email and for explaining the issue.
It is right in saying that Max for Live can add an unwanted delay.
As you have all of these channels set to Monitor-In, any plug in delay compensation is by passed, so I can recommend that you set the Input to Auto, and arm the track instead.
..."

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 Post subject: Re: Looper plugin & M4L pitch shifting device: solving latencies
PostPosted: Thu Apr 25, 2013 1:58 pm 

Joined: Wed Apr 16, 2008 8:57 am
Posts: 138
just my 0.02 €

being an fft based device one should to take in account also the "length" of the fft.

An fft performed on 1024 samples at 44.1 KHz will have a latency of more than 23 ms which should be added to the one from the buffer size of Live.

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 Post subject: Re: Looper plugin & M4L pitch shifting device: solving latencies
PostPosted: Thu Jan 16, 2014 11:36 pm 

Joined: Mon Sep 23, 2013 1:16 pm
Posts: 12
Hi Psyndrome,

a simple idea (but functional) would be to use Bome´s MIDI translator to delay the action of the press to the same delay you´re getting with the Ableton Live Looper.

For example, if you guess your latency time when you use the pitchshifting is 20ms, you could create an action in BOMEs for that when you press the pedal, the response is 20ms later, to synchronize with your performance.

I hope it helps.
Ruben


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 Post subject: Re: Looper plugin & M4L pitch shifting device: solving latencies
PostPosted: Fri Jan 17, 2014 12:54 am 

Joined: Sat Jan 24, 2009 8:16 pm
Posts: 430
Location: Arcata, CA
In this instance, I think your solution is to put the pitchchanger in an effects rack, then add another device to that rack in a second chain (a simple delay or an m4l device that allows you to compensate for the difference you're getting with the pitchchanger's output). Instead of using the Mix% on the pitchchange plugin, use the chainselector of the effects rack to crossfade between the two chains.

Latency is a complete pain for me, I wrote my own looper precisely because of this, and it's still a hassle. I actually write my loops to buffer with an offset that I have to calibrate at the beginning of using each Live session, and that's been the best solution for me....

And yeah, Live's looper device needs an update....so much potential, and yet so much FAIL.

Hope that helps,

a

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 Post subject: Re: Looper plugin & M4L pitch shifting device: solving latencies
PostPosted: Fri Jan 17, 2014 11:05 am 

Joined: Mon May 31, 2010 12:36 pm
Posts: 654
Well, pitch shifting is a heavy DSP thing, for the time being it's not possible to have it real-time (I mean with no audible latency). FFT needs time to work.

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 Post subject: Re: Looper plugin & M4L pitch shifting device: solving latencies
PostPosted: Mon Jan 20, 2014 9:46 am 

Joined: Thu Apr 07, 2011 6:10 am
Posts: 113
latency is there because of pitch shifting. This is not ableton bug. Read about pitshifting plugins. Almost each one of them have latency.


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