FFT Re-Synth & FFT Note Extractor in Bitwig (Patreon)

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Today, I introduced a new FFT Resynthesizer and Note Extractor that works differently from traditional bandpass filtering or vocoders.

This tool uses sine oscillators to analyze and resynthesize audio, allowing for creative effects like spectral stretching, shimmer reverb, and note extraction based on musical scales.

The entire process is musically oriented, focusing on notes rather than arbitrary frequency bins, making it especially useful for ambient music and experimental sound design. If you're interested, you can download the presets for free and try them out yourself.

Introduction to a unique FFT Resynthesizer and Node Extractor built in Bitwig Studio, not based on traditional bandpass filtering

Uses sine oscillators for each note instead of a fixed frequency grid, making it musically mapped across all notes

Demonstrates real-time spectral resynthesis, extracting amplitude information at each note and recreating the sound with sine waves

Features include cutoff for amplitude signal smoothing, octave shifting for creating spectral shimmer effects, and note delay for disperser-like flares

Option to remove partials not in a chosen musical scale, keeping only harmonics that fit the selected key

Explains the difference between traditional FFT bin mapping and this method’s musical note-based mapping

Describes the technical process: multiplying sine and cosine oscillators with the audio, filtering and recombining to extract amplitude and (optionally) phase information

Showcases a simple note extraction tool that converts audio input to MIDI notes, allowing played notes to trigger synthesizers

Demonstrates practical applications: ambient sound design, spectral effects, and note extraction

Patch and presets available for free download, with encouragement to experiment and offer feedback

Download FFT - Re-Synth & Note Extractor