Brooks Cinema TZ 505 High Hat

A double cymbal on a stand which can be played with a foot pedal or by the top cymbal being hit with a stick.

Assistant Engineer
A less elevated version of the term Second Engineer. Experienced seconds often place microphones, operate tape machines, break down equipment at the session end and keep the paperwork for the session.

Brooks XT 20 Byte
A grouping of eight information bits.

Frequency
Practically speaking, high frequency means high pitch and low frequency means low pitch.

Brooks BA 71 Line Out (Output, Send)
Where a signal leaves the board or component.

Frequency Shift Key / FSK
The full name for FSK (A simple clock signal that can be used to run a sequencer in time with an audio tape).

Bouncing
Alternate name for Ping-Ponging (playing several tacks with sync playback through a console to mix them together and record them on an open track).

Envelope
1) How a sound or audio signal varies in intensity over a time span.
2) How a control voltage varies in level over time controlling a parameter of something other than gain or audio level.