Need recommendations for time/pitch shifting software

Let me recent use and what I do now that I want to be able to do in Sonar:
 
I wanted to create an ominous background drone as a basis for a soundscape for a video game. I didn't want to use pure pink noise toned down and filtered cause it just wasn't as dramatic. I instead, recorded my waterfall in stereo and then used Sony elastique' inside of Sound Forge to slow down the sample to 30% of its previous speed while NOT wanting to preserve the pitch. Just get a nice really creepy deep natural base for what I did.
 
Now, I really would like to use a tool inside of Sonar to play with audio in this way instead of popping into Sound Forge for this stuff. All the tools I have seen in either Sonar or Kontakt can give you about an octave either way and they concentrate on preserving pitch while stretching time because that is obviously the typical application. Even if you can decouple them I only see a narrow range of expansion/contraction possibilities in the provided tools (-50%/+200%) which is not enough for me.
 
Any suggestions?
 
Ken

Sony licenses Elastique from ZPlane.( http://products.zplane.de...hp?page=elastiquepitch ) Elastique Pitch is the ZPlane VST. I just picked it up for 50% off the regular $199 price, but I think that offer expired a week ago or so.I have only used it for basic pitch correction so far - but really like it a lot.

Understand - in case this fits with your budget, or you change your mind, it looks like Audio-Midi have both Elastique and Vielklang (Harmonizer app) for their sale prices - Elastique is $99

DaveClark


Hi Ken, If not happy with my own code, I would start here: http://hypermammut.sourceforge.net/paulstretch/ for extreme stretch. Once you have the stretch, you can manipulate the pitch etc. in post-processing steps. Regards, Dave Clark

Definitely interesting looking stuff but unfortunately, there is no VST version of this so you can't just drop it into Sonar.


Ken

DaveClark


Hi Ken,
 
Doing real-time, extreme time-stretching is problematic, both from a programming and from a use perspective. From the programming perspective: You've got to keep an ever-increasing amount of data in memory, for one thing (because it's used much later). From the use perspective: Suppose you want to offset your clip that is stretched 23X --- how would you prefer to do this, given that the time is stretched along its axis?
 
This is one of those things where the cure is probably worse than the disease; but if you've got answers to some of the problems, I may look into creating something because I've seen a number of requests for this capability.
 
Regards, Dave Clark 
 

Thanks for the reply Dave. Decent points to consider. For the specific things I want to use this for I don't have a huge worry about excessive memory useage once the sample is produced because I would just trim it down and loop it. Thus, the whole issue of real time use is a non-factor at least for me. I definitely understand that in extreme stretch cases while you are trying to create the new sample originally you are going to chew up some memory. Something like the waterfall sample slowed down is easy to use as a sample loop of much smaller size because it is like a pink noise source on steroids.


One simple solution is to just not do a stretch that goes beyond some configurable memory limit. You obviously are far more familiar with this domain than me. What range of time stretch have people asked for?


Of course one super easy way to do this is to just slow down a clip, cut a sample out, and then repeat as necessary. I am sure there is some technical reason why this may be an issue but I am not sure what it might be other than you limit the amount of sonic variety you are going to end up with.


Ken

AT


http://m-rgt.com/index.html

Try ambitron.  Just got it, and tho it is a granular you can load in two wav files and "play" them on the keyboard.  it might be your ticket.  You can demo (if you don't mind the spoken "Ambritron" blanking out your sound every minute or so), but it is only $33.

@

Omnisphere does a pretty decent job of granular synthesis but this does look interesting for the price. Just a different type of application than what I was looking for.


Ken