A simple module that performs a sample and hold operation.
When a trigger is received by the TRIGGER input the module samples whatever voltage is currently applied to the CV IN socket and then sends this held voltage to the CV OUT socket until another trigger is received.
This is illustrated in the CV Watcher image below.
Note that the Cherry Audio Sample and Hold module is more sophisticated than this module but sometimes all that is required is very basic functionality.
This module also includes a built-in VCA the gain of which is controlled by the CV OUT voltage. This makes the module very handy for stabilizing the output of a chain of Rhythm Sequencers as explained here.
Applications
A Sample & Hold module is often used to hold a pitch control voltage steady in generative patches.
For instance the CV IN socket could be connected to a noise source or perhaps an AHR Generator module while the TRIGGER input is fed the GATE OUT signal of a Rhythm Sequencer. Generally the Sample & Hold module’s CV OUT would then be further processed by a Pitch Adjuster module to quantize the voltage so that the pitch fits into a particular scale or chord.
Below is a relatively simple generative patch that uses a slow LFO and a AHR Generator that’s triggered each bar mixed together to produce an input for the Sample & Hold module.
Tutorial link
The Sample & Hold module is introduced in LSSP 101 Tutorial 2.
Availability
The Sample & Hold module is available in both LSSP XL and LSSP 101.