Convolve : Circular convolution filtering module — Cecilia 5.4.1 documentation

# Convolve : Circular convolution filtering module

## Description

Circular convolution filter where the filter kernel is extract from a soundfile segments.

Circular convolution is very expensive to compute, so the impulse response must be kept very short to run in real time.

## Sliders

> Impulse index 1 :

>   Position of the first impulse response in the soundfile (mouse up)

> Impulse index 2 :

>   Position of the second impulse response in the soundfile (mouse up)

> Imp 1 <–> Imp 2 :

>   Morphing between the two impulse responses

> Dry / Wet :

>   Mix between the original signal and the convoluted signal

## Graph Only

> Overall Amplitude :

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

## Popups & Toggles

> Size :

>   Buffer size of the convolution

> Balance :

>   Compression mode. Off, balanced with a fixed signal or balanced with the input source.

> 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