About
VocProc is a LV2 plugin for pitch shifting (with or without formant correction), vocoding, automatic pitch correction and harmonizing of singing voice.
VocProc is released under GPLv2 licence.
News
2010/02/18, I've decided to abandon development of standalone version and maintain only LV2 version of VocProc, starting from verion 0.2
2010/02/03, Jeremy http://linux.autostatic.com has made little soundclip using (among other things) VocProc. It can be found here
2010/02/03, Ubuntu Karmic packages available at https://launchpad.net/~philip5/+archive/extra/+sourcepub/950775/+listing-archive-extra. Info about adding this repository can be found here (thanks to Jeremy and Philip).
Download
VocProc source can be downloaded from http://hyperglitch.com/files/vocproc/vocproc-0.2.tar.gz
Standalone version (not maintained anymore): http://hyperglitch.com/files/vocproc/VocProc-0.12.2.tar.gz
Building and requirements
To build it you need to have installed gtkmm-2.4, lv2-c++-tools and fftw3. These packages are also available in most distro's repositories (note to Debian/Ubuntu users: you need to get dev packages. AFAIK lv2-c++-tools is not in standard repositories so you'll have to compile it yourself. It requires libboost-dev for building).
README file.
Building process:
(edit the Makefile if needed)
> make
> make install
Uninstalation:
> make uninstall
Note: It is possible to build VocProc with or without vocoder functionality. This is described in README and Makefile files.
TODO
- reduce the oscilation between tones on tone transitions
- improvement (optimization) of pitch detecting algorithm
- MIDI control (maybe)
- various optimizations
- ...
BUGS
- first release as a LV2 plugin so we'll see...
Changelog
- 2010/02/18, version 0.2, first release as a LV2 plugin. Fixed GUI (switched to Gtk, added dropdown menus for scale selection, visual indication of offset from desired tone and few other things). Everything else pretty much unchanged.
- 2010/02/02, version 0.12.2, fixed some things I messed up last time when I was fixing things
- 2010/02/01, version 0.12, solved crashing problem on Ubuntu (memory allocation in JACK processing callback - kudos to Gabriel M. Beddingfield)
- 2010/02/01, version 0.11a, added pkg-config support
- 2010/01/31, version 0.1a released
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Well, I think you already know about Tom Baran's Autotalent [http://web.mit.edu/tbaran/www/autotalent.html]. There's a lot of functionality in there (great FLOSS software by the way), like automatic pitch detection i think. But it uses the old LADSPA API and yours newer LV2 plugin with it's pretty GUI looks way better. But maybe there's some functionality to borrow from this other Open Source project. Anyway, I really like VocProc and hope it will keep improving. Thankyou very much for this great plugin.
— by Jonatas Esteves on Fri, 11 Jun 2010
thanks for your support! yes, i'm familiar with autotalent. i think vocproc gives a bit better results than original autotalent (just my opinion). but the problem with vocproc is it has a much higher latency and needs more cpu power (i'll try to fix both problems when i find some time - probably over summer). however, jeremy bubs forked the original autotalent, improved it and released as lv2 plugin: http://code.google.com/p/autotalentlv2/. it currently doesn't have gui but i think he's working on it now. cheers!
— by igor on Sat, 12 Jun 2010