Circuit Slices, LLC
Sample & Noise User Manual
CS019
CS019-UM v2.0| www.circuitslices.com
3
Using the Noise Source
Patch a little white noise to the input of a VCA or VCF, while also adding a very sharp attack and decay
envelope to produce interesting percussive hits, or with longer attacks, steam-pipe organ sounds.
The PINK output is useful for producing lower-pitched sounds, while the LF output can be used to
thundering rumbles or random pitch sequences when used as a control voltage. And the obvious patch
is to use noise for the input to your sample & hold, while clocking it with a steady clock source. This will
produce random pitched steps if the S&H is patched to a VCO.
Note that the LF output is “normalled” or pre-patched to the Sample & Hold input, saving you a patch
cord (this modification is included in Rev 3.0). And of course, if you patch into the Sample & Hold ‘IN’
jack, the normalled LF signal will be disconnected to the input.
The amplitude of the outputs is user adjustable using a single PCB-mounted trimmer, P1. The trim
potentiometer is located on the board between the WHITE and PINK jacks. Use a small screwdriver to
adjust the noise outputs – turning counter-clockwise will decrease the output. The factory setting keeps
the white noise at about +/- 5V, with some peaks just above. The PINK and LF outputs will be a little
lower, /- 5V. You can adjust higher or lower than this.
DIY Option for Internal Clock Source
If you would like to expand the capabilities of this module, you can add a switch and potentiometer to
enable an internal clock source function. First remove the shorting jumper on J9 (located between the
OUT and CLOCK jacks), then an SPDT switch can be connected to J9 to select between the internal clock
or an external source. A 1 Meg ohm potentiometer is then connected between the two pins of J8
(located between IN and OUT jacks). See the figure below for wiring details.
