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Changing key without too much quality loss?
Posted: Fri Apr 27, 2012 8:07 pm
by Bob Cat
Hey everyone!
I am wondering, is there a way to change the key without have a too big quality loss? What I usually do is click on the sample, then go to the bottom, select "Complex Pro" and then Transpose. One line = one note, if I got that correctly. However, the tracks sound... well... a bit messed up.
Is there any other trick to preserve as much quality as possible?
Thanks
Bob Cat
PS: I am using the latest Ableton Live on the latest Lion.
Re: Changing key without too much quality loss?
Posted: Sun May 06, 2012 2:26 am
by lapieuvre
My general rule is:
Instruments --> Warp modes
Drums & Percs --> Beat
Bass and guit --> Tone or complex pro
Keyboards --> Complex Pro
Keyboard Strings --> Complex, sometimes Tone
Vocals --> Complex Pro
Go track by track and see which warping mode sounds best
Re: Changing key without too much quality loss?
Posted: Tue May 08, 2012 6:52 pm
by Vios
One way to "get back" a bit of quality can be to use an exciter (I say get back in quotes because it isn't really possible). I find warping in Ableton can result in the audio loosing some high end and loosing some high end harmonics, and an exciter can help bring back a little bit of that high end. I really like the Modern Exciter, included in the
Antress Modern Plugins free VST pack. lapieuvre's advice is spot on, otherwise rerecord!
One trick to change the key with little quality loss is to use the repitch warp setting and then change your track's BPM. Say the original track is in the key of A and recorded at 100BPM. You can get it to the key of B by selecting repitch in your warp settings and then changing your track's tempo to 112.25BPM (493.88/440*100). Note that this locks you into the new tempo however.
New Tempo = ((Frequency of desired root note)/(Root Note of Original track)*(Original track's tempo in BPM).
Use this as a guide for finding out note frequencies. In the example above I used middle A (440Hz) and middle B(493.88Hz).
This is like the effect of playing a 33 at 45 (if you know about records...), but doing it precisely to transpose between keys.
Re: Changing key without too much quality loss?
Posted: Tue May 08, 2012 7:05 pm
by ramangill
lapieuvre wrote:My general rule is:
Instruments --> Warp modes
Drums & Percs --> Beat
Bass and guit --> Tone or complex pro
Keyboards --> Complex Pro
Keyboard Strings --> Complex, sometimes Tone
Vocals --> Complex Pro
Go track by track and see which warping mode sounds best
Interesting...
Re: Changing key without too much quality loss?
Posted: Mon May 14, 2012 2:14 pm
by Spectrumdisco
Use the list as a guide, but do try other modes as these can cause lucky accidents or improve
