
- PaulXStretch is a VST2/AU plugin that’s designed for extreme time stretching and spectral processing of audio. This plugin is based on the PaulStretch standalone app, aka Paul’s Extreme Time Stretch.
- PaulXStretch may be the most powerful time-stretching freeware available today, so it is definitely worth checking out if you are into warping audio. The plugin is available only on 64-bit operating systems (Mac and Windows) as a VST or AU. You can download it here for free. MultiAnalyser - Free MaxforLive Device Displays Multiple Track EQ.
It has links to a more recent build, the PPC build, etc.

Yesterday I couldn’t spell OS X Developer and now, I are one!
With some help from my friends on the CMake mailing list I finally got a running standalone OS X application built out of the Paul Stretch source. As I wrote yesterday, it’s free, it’s easy, and it makes hours of freaky soundscapes out of any audio file.
Except for mp3 files. If you try and load an MP3 file it locks up. Oh, and it wants WAV or OGG files — as far as I know it can’t load AIF files. But it’s free, right?
http://www.cornwarning.com/xfer/PaulStretch-OSX.dmg
Xenakios has release a free VST version of the open-source tool Paul’s Extreme Sound Stretch.
PaulXStretch may be the most powerful time-stretching freeware available today, so it is definitely worth checking out if you are into warping audio. The plugin is available only on 64-bit operating systems (Mac and Windows) as a VST or AU. You can download it here for free. MultiAnalyser - Free MaxforLive Device Displays Multiple Track EQ. PaulStretch 2.1 is Out! New build instructions + new x86 OS X build; Olive Kitteridge Music & the synchronicity of chord changes; Sample Sounds of the MRI Scanner; VCVRackTutorial: More ambient drones, more modulation. Top Posts & Pages. New Paulstretch OS X build; Paul Stretch (extreme audio time stretching) for OS X to download!
It’s an amazing sound mangling tool for creating slow evolving pads and drones and other special effects.
Why use the vst version?
- can capture audio in realtime from the track or input
- can also import audio
- automate any parameter
- save presets
- works on up to 8 output channels

In the video below I’ve explored some of the possibilities this plugin is capable of just from a short capture of my voice.
Paulstretch Audacity
You may remember a previous Xenakios project I covered, the CDP Extension for REAPER