SpectralWarper : Phase Vocoder buffer and playback with transposition — Cecilia 5.4.1 documentation

# SpectralWarper : Phase Vocoder buffer and playback with transposition

## Description

This module pre-analyses the input sound and keeps the phase vocoder frames in a buffer for the playback. User has control on playback position and transposition.

## Sliders

> Position :

>   Normalized position (0 -> 1) inside the recorded PV buffer. Buffer length is the same as the sound duration.

> Transposition :

>   Pitch of the playback sound.

## Graph Only

> Overall Amplitude :

>   The amplitude curve applied on the total duration of the performance

## Popups & Toggles

> FFT Size :

>   Size, in samples, of the FFT

> FFT Envelope :

>   Windowing shape of the FFT

> FFT Overlaps :

>   Number of FFT overlaping analysis

> Polyphony Voices :

>   Number of voices played simultaneously (polyphony), only available at initialization time

> Polyphony Spread :

>   Pitch variation between voices (chorus), only available at initialization time