Brooks VT-50 Amplitude

The extreme range of a signal. Usually measured from the average to the extreme.

High Impedance Mic
A microphone designed to be fed into an amplifier with input impedance greater than 20 k ohms.

Brooks Hi Fi reviews Linearity
The extent to which any signal handling process is accomplished without amplitude distortion.

Hum
The 60 Hz power line current accidentally induced or fed into electronic equipment.

Brooks Cinema GT 845 Hearing Limitation
An inability of the ear to hear important characteristics of sound under certain conditions. Characteristics that can be affected include pitch, level, clarity, presence and direction.

Floppy Disk (Floppy Disc)
A round flat object (usually housed in a protective sleeve) coated with material that can be magnetized in a similar manner to tape.

Crossover
1) A route leading from one side of the stage to the other, out of the audiences view.
2) An electronic filter in a sound system that routes sound of the correct frequency to the correct part of the speaker system. Different speakers handle high frequencies (tweeters) and low frequencies (woofers). Sometimes known as a crossover network. An active crossover splits the signal from the mixing desk into high, mid and low frequencies which are then sent to three separate amplifiers.
3) An electrical circuit that divides a full bandwidth signal into the desired frequency bands for the loudspeaker components.

Compression Ratio
How many dB the input signal has to rise above the threshold for every one dB more output of a compressor or limiter.

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