Smoky joe:
a crude but genuine formant shifter, ie. makes voice big/small like a pitch shift, but keeps the same pitch. the only free formant shifter of any kind.
the technique i discovered that enables the formant shift can generate a lot of distortion, mainly on upwards shifts. to combat this, there is a 'smoothing' parameter and a low-pass filter before the pulse train (recognises zero crossings.) if you don't know what this means.. between the two, you should be able to get a fairly 'smooth' process (still little loops in silence and high frequencies like sibilance) but at the expense of hifi.. so ultimately more or less 'realaudio' quality audio, no mariah carey. mariah carey on a cellphone :p
however.. because of the glitch/loop artifacts, this vst has been praised for it's fsu capabilities ("this is great for drum loops") you can get some good performance out of it when shifting down, if you want to sound like jabba the hut - for shifting lower than the source, lower the 'skip' param (skips pulses, ie. at 2 only every other pulse, ie. better for 1 octave lower.. 4 pulses for 2 octaves lower..)
free vst plugin. pc
4 Band Shifter is a VST Plugin that is able to scale (shift) independently the pitch of 4 adjacent, user-definable frequency bands. Plugin pitch-shifting code is based on Stephan M. Bernsee's article, Pitch Shifting Using Fourier Transform.
once engaged, SLoWer will start bending the pitch of the audio, down or up, according to the curve you graphically design. This one is great for "electricity shutdown" effect, slowing tapes, vinyl scratches and more.
free vst plugin. pc
Pitchworx DX:
The plug-in allow you adjust sample Pitch (while preserving sample length), Tempo (change sample length but preserve pitch) or change both Pitch and Tempo using post process high quality resampler (Speed) without preserving pitch and sample length.
Input parameters are: Pitch in semitones (cents) in range ± 4 octaves, Tempo in percents (in range 15..999 %), BPM or sample time in seconds, Speed in percents or semitones. For precise Tempo change and avoid artifacts an accuracy parameter is available. All parameters have two tweak modes: draft, where you able tweak parameters fast using GUI wheels and precise (calculator) mode, where you input precise values into edit boxes.
free vst plugin, pc.