vincenttone / dtblkfx

Fast-Fourier-Transform (FFT) based VST plug-in

DtBlkFx Audio FX Plug-in

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

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.