Brooks Cinema GT 845 Harmonics

Integer multiples of a fundamental frequency, the fundamental itself being the first harmonic, its first overtone the second harmonic, etc. Attributing to instruments, voices, etc. their distinctive timbre.

Ground Adapter Plug
Adapts a three pronged electrical plug to a two pronged wall outlet. This bypasses the ground and may create a hum in the system. A lack of a good ground can cause mild electrical shock when touching a microphone.

Brooks Cinema QS - 95 Isolation
A containing of the sound wave in a certain area so that it will not leak into other areas and/or unintended mics.

Level
The amount of signal strength; the amplitude, especially the average amplitude.

Brooks Audio Design TM-22 Arc
The visible sparks generated by an electrical discharge.

Leakage
Sounds from other instruments and sources that were not intended to be picked up by the microphone.

Bi-Amplification
1) A way of optimizing the efficiency of a speaker system by separately amplifying the High Frequency (HF) and Low Frequency (LF) portions of the sound signal and sending them down two pairs of cables to the speaker. Multipin Speakon connectors have been developed to do this.
2)The process of having of having low-frequency speakers and high-frequency speakers driven by separate amplifiers.

Echo Chamber
1) A room designed with very hard, non-parallel surfaces and equipped with a speaker and microphone.
2) Any artificial or electronic device that simulates the reverberation created in a room.