The original tape recording made during a recording session.

Pronounced 'Skuzzy', it is an abbreviation for Small Computer Systems Interface. A now obsolete interfacing system for using hard drives, scanners, CD-ROM drives and similar peripherals with a computer. Each SCSI device has its own ID number and no two SCSI devices in the same chain must be set to the same number. The last SCSI device in the chain should be terminated, either via an internal terminator or via a plug-in terminator fitted to a free SCSI socket.

A term taken from the practice of editing analogue tape where the tape was manually dragged back and forth across the replay head to locate the required edit point using an action similar to the cleaning action of 'scrubbing'. The term is now routinely used in DAWs and audio editing software platforms where the audio is played forwards or backwards at variable speeds, usually to locate an edit or cue point. A Jog Wheel is often used as the hardware controller for scrubbing.

As analogue recording tape moves across the heads or other non-moving parts in the tape path it can vibrate at a high frquency (typically above 100Hz) due to a rapid stick-slip action, and this causes a form of intermodulation distortion. Often mechanical dampers and rollers are placed in the tape path to prevent scrape flutter.

So called because it resembles the teeth of a saw, this waveform contains both odd and even harmonics.

(S&H) - Usually refers to a feature whereby random amplitude values are generated at regular intervals and then used to control another function such as pitch or filter frequency. Sample and hold circuits were also used in old analogue synthesizers to 'remember' the note being played after a key had been released.

The number of times an A/D converter samples the incoming waveform each second. The sample rate must be more than twice the highest frequency to be encoded — according to the Nyquist Theorem.

Either a defined short piece of audio which can be replayed under MIDI control; or a single discrete time element forming part of a digital audio signal.

A copy or clone of an original tape for use in case of loss or damage to the original.

A hardware controller comprising a knob or dial which can be rotated in either direction without end-stops. A digital encoder of some kind attached to the shaft translates the movement into a digital code that can indicate both direction and speed of rotation to the controlling software of a device.