Free Time Stretching Plugins

ValhallaFreqEcho

ValhallaFreqEcho is a free multi fx and delay and echo and time stretcher VST, Audio Unit, RTAS plugin developed by Valhalla DSP. Compatible OS(s): Windows, macOS.

ValhallaFreqEcho is a frequency shifter, combined with an analog-style echo. The MkI release adds a GUI as well as the ability to sync the delay time to the tempo. The sonic results encompass barberpole flanging and phasing, dub echoes that constantly rise or fall in pitch, the classic detuning of frequency shifting, and a variety of psychedelic, evolving self-oscillation patterns that will spin around and through your skull.

Features:

Bode-style frequency shifting.

Analog style delay, with delay time set via knob or synced to tempo.

Low Cut and High Cut filters for shaping delayed sound.

Feedback control (can produce self oscillation even with no input).

Mono/Stereo input, stereo output.

http://www.valhalladsp.com/

TAPEBRAKE

TAPEBRAKE is a free time stretcher VST plugin developed by WOK. Compatible OS(s): Windows.

TAPEBRAKE is #4 in the one-trick-pony series from WOK.

It simulates the effect of a stopping tape or turntable on the fly just with a press of one button.

The “spindown” time can be selected in beats (host synced).

TAPEBRAKE is available for Windows 32-bit as part of the BACKPACK.

http://www.wokwave.com

stwETCH

stwETCH is a free pitch shifter and time stretcher VST plugin developed by whiteLABEL. Compatible OS(s): Windows.

stwETCH is a playable granular time-stretching / buffer repeater effect capable of stretching up to 500% normal length using granule sizes ranging from 10 to 500 ms, meaning that relatively smooth and total whack-job are both possibilities here. Further to this there are 2 pitch controls: one that controls granule playback speed, aka speed control (like tape), and one that controls pitch-shift, aka pitch (like a pitchshifter).

stwETCH was designed as a control surface playable instrument – in a similar vain to wavePLAY. It is entirely monophonic and whilst it has MIDI support, it won’t respond to any plain old note-on data. stwETCH wants nothing but CCs – even the play switch. So, play it from a control surface (or VST automation parameters) or use MIDI CC – just don’t expect it to respond to you playing the notes on a keyboard.

A mono version of stwETCH is available for free (the full version is stereo).

http://dazdisley.co.uk/whiteLABEL/

Speedster

Speedster is a free pitch shifter and time stretcher Audio Unit plugin developed by AA. Compatible OS(s): macOS.

Speedster is an Audio Units effect plugin that pitch shifts and time-stretches in real-time. A clever algorithm allows for controlling (and automating) pitch and speed independently.

It can also perform stereo/center separation, so that the user has independent control not only of the right and left side of the signal, but also of the center.

http://airy.andre.online.fr/

SpatHarmo 8

SpatHarmo 8 is a free pitch shifter and time stretcher VST plugin developed by Acousmodules. Compatible OS(s): Windows.

SpatHarmo 8 is an Octophonic harmonizer.

Features:

Eight separate pith shifters.

Four octave pitch shift.

Free position of the speakers.

Free spatial position of each pitch shifter inside the octophonic space.

External audio input or integrated wave player with pitch control.

Stereo compatible when putting the sounds inside only two speakers.

Inertia parameter for smooth variations.

Change of the configuration by a MIDI keyboard with transition duration for slow evolutions (may take a lot of CPU).

http://acousmodules.free.fr/

Rubberizer

Rubberizer is a free pitch shifter and time stretcher VST plugin developed by Scuzzphut. Compatible OS(s): Windows.

Rubberizer is a front-end for the free timestretching library, Rubberband.

Rubberizer allows the user to browse for samples (with in-host preview) and set the timestretching parameters (time, pitch, crispness) of rubberband.exe. The plugin will then invoke rubberband.exe to render a new, time-stretched file.

New samples are automatically named with a smart naming scheme.

Finally, the user can drag the new, time-stretched sample into their host, directly from the Rubberizer GUI.

http://www.scuzzphut.com/

PitchSlap

PitchSlap is a free pitch shifter and time stretcher VST plugin developed by DarkWare. Compatible OS(s): Windows.

PitchSlap offers massive pitch modulation capability to create completely new sounds from source material.

PitchSlap allows you to alter the pitch in a stereo manner; the left channel and right channel can be altered independently, or together using the center slider. Continuously automated pitch molestation is a cinch with the onboard modulators. You can create modulated delays to accent the pitchslapped material and make “experimental IDM” with a twist of just a few knobs, or with any of the 16 presets.

http://www.jackdark.net/

OctoScratcher

OctoScratcher is a free pitch shifter and time stretcher VST plugin developed by Acousmodules. Compatible OS(s): Windows.

Octophonic gestual (?) pitch and speed variation from four audio files or by grabbing the audio input in realtime.

http://acousmodules.free.fr/

Octave Shifter

Octave Shifter is a free pitch shifter and time stretcher Audio Unit plugin developed by Audiowish. Compatible OS(s): macOS.

Octave Shifter 2 is a real-time pitch shifting audio effect.

Key features:

Real-time, low latency processing for live performances.

High precision post-processing for studio quality results.

Four full octaves of pitch adjustment.

Continuous pitch change, enables automation of pitch parameter.

Extensive user manual.

http://www.audiowish.com/

Nibi

Nibi is a free pitch shifter and time stretcher VST plugin developed by p0k. Compatible OS(s): Windows.

Nibi is a stereo random/wired pitch shifter with feedback delay. It works well for pads and drums (especially to make “drill ‘n’ drum” sound).

http://vst.p0k.net/