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DtBlkFx Audio FX Plug-in

DtBlkFx is a Fast-Fourier-Transform (FFT) based VST plug-in.

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This is a fork of the original DtBlkFx by Darrell Tam. The original source was not ready for public consumption. I have spent a considerable amount of time getting this ready for a Github release.

Despite a major overhaul of the project structure, I have only made very small changes to the source itself to enable x64 builds on windows. There is still a long way to go to making it clean and easy to hack on.

That being said, anyone with a reasonable amount C++ experience shouldn't find it too difficult to get started. I am glad to accept pull requests and any other help I can get.

Usage examples

  • Precision parametric equalizing with sharp-roll off
    • Set the frequencies so accurately that you can adjust individual harmonics of a sound
    • Frequency resolutions of up to 0.7 Hz
  • Harmonic based (or comb) filtering
    • Set a fundamental frequency and adjust the level of it and its harmonics - you can even remove the pitched component of a voice
    • Active harmonic tracking - let DtBlkFx automatically track a sound and adjust the level of it's harmonics
  • Various types of noise control
    • Change the "contrast" between loud and soft frequencies
    • Adjust only those frequencies below or above a particular threshold
    • Clip frequencies above a particular threshold
    • Sound smearing (phase randomizing)
  • Frequency shifting
    • Harmonic shifting by a fixed number of notes
    • Non-harmonic shifting by a fixed frequency
    • Active harmonic repitch - the pitch of your sound is monitored and shifted to a destination note (or matched to another channel)
  • Various methods of mixing left and right channels
    • Standard Vocoding (frequency enveloping) - make your trumpet rap, string section sing or synthesizer talk
    • Harmonic based vocoding - harmonics in one channel are power-matched to those in the other (or some predefined waveforms) for a new vocoding sound
    • Convolution-like mixing
    • 2 new mixing algorithms
  • Frequency masking
    • A harmonic or threshold mask may be set for any effect (apart from vocoding) - for example only shift frequencies that are below the threshold

You can select up to 8 of the above effects to be run in series! Combining the effects in this way allows you to make completely new and surprising sounds.