Vocal Toolkit is a free plugin for Praat with automated scripts for voice processing.
Praat is a free software for the analysis of speech in phonetics, created by Paul Boersma and David Weenink of the University of Amsterdam.
Latest updates
- Flanger
- Mix all
- Exciter
- Butterworth filter
- Phase rotation (Hilbert transform)
- Distortion (clipping)
- Syllable Nuclei v3. Detect syllables and filled pauses
Commands are grouped into two added drop-down menus, Process and Copy, that will appear when one or more Sounds are selected in the list of objects.

- Process: These commands process the selected Sounds or create new ones
- Copy: These commands modify the characteristics of the second selected Sound to match those of the first selected Sound
The scripts do not modify the selected Sounds but create new ones with the result of the processing.
For more details on each command, please see the corresponding links on the left.
IMPORTANT: No AI was used in the creation of this plugin. Each script was manually programmed after hours of trial and error, learning primarily from Praat's scripting tutorial, as well as from studying existing scripts from cited authors.
I'm not a phonetics expert, just a programmer and sound design enthusiast who selflessly offers this tool to Praat users, and I'm always available to answer any questions, fix bugs, and receive suggestions for improvements here.
This plugin is free and can be used for any purpose.
Please consider to make a donation to support my work and costs. Thank you!
Ramon Corretge