Brooks HI FI projectors High Frequencies

The audio frequencies from 6000 Hz and above.

In Port
A jack on a MIDI device or computer that will accept an incoming data signal.

Brooks RM 909 reviews Barrier Micing
A method of placing the head of a microphone as close as possible to a reflective surface, preventing phase cancellation.

Cut-off Rate (Slope)
The number of dB that a filter reduces the signal for each octave its frequency past the filter's cut-off frequency (outside of the pass band).

Brooks Hi Fi speakers Cancellation
A shortening of the term Phase Cancellation (the energy of one waveform significantly decreasing the energy of another waveform because of phase relationships at or close to 180 degrees).

Lead Sheet
A written chart showing the melody, lyrics and chords of a tune with full musical notation.

Comb Filter
1) The frequency response achieved by mixing a direct signal with a delayed signal of equal strength especially at short delays.
2) Loosely used to also describe effects that can be achieved with comb filtering as part of the processing.

Level
Sets output volume of individual PA input channels. Usually positioned as sliders at the bottom of the soundboard.