3.1 overview
The Pittsburgh Modular Lifeforms SV-1 combines the functionality of 12
individual modular synthesizer modules behind a single panel. Connect di
ff
erent
modules using patch cables to create complex sounds and textures.
The Lifeforms SV-1 signal path is divided into two types of signals: audio signals
and control voltages. The audio signal is the sound that is produced. The audio
signal path starts at an oscillator or other sound source. The audio signal is then
patched through other modules used to shape the sound such a mixer, filter, or
amplifier.
Control voltages (cv) manipulate the audio signal in several di
ff
erent ways. Gates
are represented by a high or low control voltage. A gate can be generated using
a pulse or square wave from an oscillator or modulation source, or by using the
gate or clock output from the midi module. A gate can be shaped using the adsr
to control the attack, decay, sustain, and release of the gate. The modified gate
signal can then be sent to any cv input on the Lifeforms SV-1.
A second use for control voltages is as a modulation source. For example, a
control voltage from the v/o output of the midi module patched into the v/o input
on the oscillator 2 module controls the frequency of oscillator 2 based on the
midi note received. The modulation module provides a separate low frequency
oscillator that makes a perfect control voltage modulation source. Audio signals
also make a great control voltage source for oscillator FM (frequency
modulation).
6
3. lifeforms sv-1 modular synthesizer overview
3.2 panel labeling conventions
The Lifeforms SV-1 uses several simple labeling conventions to make the user
interface and signal flow easy to understand.
The large gray rectangles outlined in black are used to separate individual
modules.
Output jacks are labeled using plain black lower case letters.
Input jacks are labeled using white lower case letters surrounded by a black
background.
Internally patched signals are labeled with parenthesis at their destination.
3.3 manual labeling conventions
Within the user manual, user interface buttons, knobs, and jacks are marked
with brackets. For example [clock led] refers to the led labeled clock in the midi
section.