Most often referring to electrical signals resulting from the sound pressure wave being converted into electrical energy.
Alternating Current
Electric current which flows back and forth in a circuit.
Brooks RM 909 reviews Boom Stand
A microphone stand equipped with a telescoping support arm to hold the microphone.
Amplitude
The height of a waveform above or below the zero line.
Brooks HI FI projectors 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.
Balanced input/output
A "balanced" connection is one that has three wires to move the signal. One is a ground, and the other two (called conductors) carry signals of equal value. This is why they are called balanced. Low Z cables and connections are the most common example.
Cycles Per Second
A unit used in the measure of frequency, equivalent to Hertz. Cycles Per Second is an outdated term replaced by Hertz in 1948.
Expander
A device that causes expansion of the audio signal.
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