Smartelectronix Alex Antti Bram DestroyFX dmi dunk ioplong Jaha Jason Koen Magnus mda mdsp Sean

Friday, March 25, 2005

Fre(a)koscope 0.8 public beta


frequoscopesmall.png

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Fre(a)koscope is an FFT-based real-time spectrum analyzer featuring: lin/log/semitones/third-octave/Bark scales
- window size selection
- frequency zooming
- freeze
- peak hold
- cursor information (amplitude+frequency)

planned:
- mel/Erb frequency scales
- spectrum averaging
- basic informations like spectral centroid, dominant pitch...

for bugs reports and requests go to this thread



downloads:

Fre(a)koscope-0.8-beta macosx
Fre(a)koscope-0.8-beta win32 installer

Saturday, January 08, 2005

FFT tools vol 1

These plugins are intended to constitute a spectral sound-design toolbox. Most of them are inspired by image processing techniques as you can find in photoshop for example. I've used the FFTReal class by Laurent De Soras that can be downloaded at musicdsp

::WARP::
This plugin swap a frequency band defined between the fmin and fmax parameters while leaving the side bands unchanged. Low frequencies are mapped to high ones and high to low. The resulting sounds are highly inharmonic. You can try to set the min frequency very low (i.e.100Hz) and the max frequency to its maximum thus letting the very low frequencies pass through while swapping the remaining frequencies...

::LEVELS::
This plugin affects the spectral dynamic. It classifies the magnitudes in 3 regions: small, medium and big whose gains can be adjusted independently between [-20dB;+20dB]. Therefore by boosting or cutting the small magnitudes, you can either add liveliness or remove background noise. Just try it to hear how far you can change your sound's character.

::KONTRAST::
This plugin also affects the spectral dynamic. It scales the spectral magnitude histogram according to a transfer function defined by the min, max and center parameters with saturation of the levels below the min and above the max.

::ROBOTIZER::
This one just forces the phase to 0.0 thus removing life from your sound. No parameter except a gain.



downloads:
vst win32
vst osx

Just uncompress them to your plugins directory and have fun ;-)

Friday, January 07, 2005

FFT tools vol 2

In preparation:
pixelize pixelize the fft bins and spectral bit-crushing
Shift translate the spectrum inharmonically
Scale pitchshifter
Reorder
Freezer freezes the magnitude, let the phase as is
Whisperizer add noise to the phase
SpektralFilter slows spektral envelope evolution
Cell Cellular Automata based synth. cf Bram's WinCell

visit ADAFx and DAFx for some of the ideas that are stimulating my imagination.