GBLooper
GBLooper is a looper built around five copies of a phase vocoder implemented in pfft~, with added pitch shifting via gizmo~. The main purpose of this looper is to allow for extreme time-stretching of recorded loops, and to enable full automation of all parameters, allowing a performer to completely bypass the need to manually interact with its controls during a live performance.

Features
- timestretch your sound without affecting pitch - slow, fast, backwards etc.
- pitchshift, independently from speed. Including random detuning and selection of a few 12 edo tuningsystems
- you can freeze the spectra
- create rhythmic effects by changing the playback regions or spectral freeze location of the buffers
- record into each playback buffer in real time, even multiple at the same time, where each loop can be different durations
- Automate this looper in virtually any way imaginable, offering a vast range of compositional possibilities

Technical Note: Due to the nature of the FFT-based processing of this phase vocoder, the pfft~ buffer must be twice the size of the audio material being processed to capture the full sampling rate—since FFT only represents frequencies up to Nyquist. In real-time looping, this means you simply ignore the second half of the buffer. FFT size (e.g. 512, 1024) determines latency: higher sizes provide greater spectral resolution at the cost of responsiveness.