LooperBank : Sound looper bank with independant pitch and amplitude random — Cecilia 5.4.1 documentation

# LooperBank : Sound looper bank with independant pitch and amplitude random

## Description

Huge oscillator bank (up to 500 players) looping a soundfile stored in a waveform table. The frequencies and amplitudes can be modulated by two random generators with interpolation (each partial have a different set of randoms).

## Sliders

> Transposition :

>   Transposition of the base frequency of the process, given by the sound length.

> Frequency Spread :

>   Coefficient of expansion used to compute partial frequencies. If 0, all partials will be at the base frequency. A value of 1 will generate integer harmonics, a value of 2 will skip even harmonics and non-integer values will generate different series of inharmonic frequencies.

> Amplitude Slope :

>   Specifies the multiplier in the series of amplitude coefficients.

> Boost / Cut :

>   Controls the overall amplitude.

> Freq Rand Speed :

>   Frequency, in cycle per second, of the frequency modulations.

> Freq Rand Gain :

>   Maximum frequency deviation (positive and negative) in portion of the partial frequency. A value of 1 means that the frequency can drift from 0 Hz to twice the partial frequency. A value of 0 deactivates the frequency deviations.

> Amp Rand Speed :

>   Frequency, in cycle per second, of the amplitude modulations.

> Amp Rand Gain :

>   Amount of amplitude deviation. 0 deactivates the amplitude modulations and 1 gives full amplitude modulations.

> Voices Per Channel :

>   Number of loopers created for each output channel. Changes will be effective on next start.

## Graph Only

> Overall Amplitude :

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

## Popups & Toggles

> Partials Freq Jitter :

>   If active, a small jitter is added to the frequency of each partial. For a large number of oscillators and a very small Frequency Spread, the periodicity between partial frequencies can cause very strange artefact. Adding a jitter breaks the periodicity.