This is the Stacy v0.1.3 User Manual. In here, you'll find information on how to install and use that version of Stacy.

Stacy is an "interactive circuit editor" (very much like Pure Data) that works on audio signals. A good intuitive model of this kind of program is the Guitar Pedalboard.

With this program, the user creates a circuit by patching components together. Then audio and other types of signals are piped through the circuit as inputs, transformed by the components and the output of the circuit is sent back to the user.

Some components have zero inputs and some have one or more, but all components have exactly one output. This allows the user to "place copies of" (or to instantiate) a component in a square grid and to considere the corresponding "cell" to represent both the instance and the output signal of that instance. Here, an important intuitive model is the spreadsheet formula.

Again, components receive signals as inputs and produce a signal as output. Intuitively, a signal is "that which goes through a wire". There are a few types of signals:

• audio signals (continuous values)
• user interface (or UI) signals, which behave like MIDI
• bytebeat signals (integer values)
• pair (or multiplexed) signals, which encapsulate two signals inside a single one.
• And the error signal, which represents the "absence" of a signal.