An Audio Units plug-in diatonic pitch shifter and harmonizer inspired by effect units like the Eventide series of harmonizers has been made available by Forever For Now. It is designed to work on a monophonic signal to create harmonies.
Diatonic Shifter Audio Unit features

• Diatonic pitch shifting and harmonizing on a per note basis
• User configurable tuning frequency for the A440 note
• Adjustable tracking delay setting to prevent note detection jitter
• Works on any amount of input and output channels at any sample rate
• Adjustable FFT size ranging from 512 to 8192 and dynamic oversampling
• Three different windowing types: cosine, Hamming and Hann
• Industry standard Cocoa user interface and compliance
• Freeware

Pricing and Availability:
Available for free download.
More information, audio demo and download:

• www.ffnn.nl/pages/projects/audio-unit--diatonic-shifter.php
  
  
  

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