PaulXStretch | Audio Plugins for Free

“(July 9th 2018 : updated to version 1.2.2)

PaulXStretch – VST2/AU Plugin for extreme time stretching and other spectral processing of audio

This plugin is based on the PaulStretch algorithm. (Paul’s Extreme Time Stretch, originally developed by Nasca Octavian Paul.)

No manual or demonstration video exists at the moment, but some information follows :

The plugin is only suitable for radical transformation of sounds. It is not suitable at all for subtle time or pitch corrections and such. Ambient music and sound design are probably the most suitable use cases.

The plugin can either load an existing audio file from disk to process or it can capture audio from the plugin inputs. (The capture mode is started/stopped with the “Capture” parameter.)

The plugin will require the DAW audio engine to be running on the track it is inserted on. How that is achieved in various hosts is specific to those hosts. Some hosts will just immediately start running the plugin, in other hosts one may need to record/input monitor enable the track or something else needs to be done.

The plugin has lots of latency, that isn’t reported to the host as it likely can’t be properly compensated for, anyway.

Host automation does work, but in a laggy fashion and likely not completely deterministically. (Different play runs may produce different results.) This unfortunately can’t be helped much. The algorithm can only change the processing parameters between fully processed FFT blocks.

Lots of thanks to everyone who has donated so far!

I have tested that the plugin loads and runs in :

Windows : Cockos Reaper 5, Ableton Live Lite 9, FL Studio, Plogue Bidule, JUCE plugin host (which may indicate it works in Tracktion/Waveform).

Mac Os : Cockos Reaper 5 (VST), Ableton Live Lite 9 (VST), Apple GarageBand (AU), Plogue Bidule (VST).

The plugin may well work in other hosts, but I am not able to test and debug with all of them.

There may be problems when doing offline rendering/export in Cubase. A workaround to get the plugin output into a final mix is to record the output of the plugin in real time by some means into an audio track and bypassing/removing the plugin before doing offline exports. (This may be a sensible workflow in other hosts too…)”

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