An "analog" (analog) is a close but not perfectly accurate copy of (in this case) a signal or sound. For instance, a signal recorded on tape is an analog of the original sound, and although it may be a nearly perfect duplicate, it will not have exactly the same characteristics as the original.

Device (or software), that allows a MIDI instrument to sequence around any notes currently being played. Most arpeggiators also allows the sound to be sequenced over several octaves, so that holding down a simple chord can result in an impressive repeating sequence of notes.

This is the initial, sharply delineated portion of a signal. For example, the attack of a drum would be the portion of the signal that is generated by the drum stick at the point of impact.

American Standard Code for Information Interchange. A standard code for representing computer keyboard characters by binary data.

The amount of time it takes an effect, such as compression, to begin affecting the signal.

Signals in the human audio range: nominally 20Hz to 20kHz.

Feature of a tape machine or other recording device that enables specific locations to be stored, then at some later time, these locations within the recording may be recalled. For example, you may store the start of a verse as a locate point so that you can get the tape machine to wind back the start of the verse after you've recorded an overdub.

Control on a mixing console designed to route a proportion of the channel signal to the effects or cue mix outputs (Aux Send).

Physical output from a mixer Aux Send bus.

The range of frequencies that can be heard by the human ear.