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→Signal
==== Signal ====
A signal is the physical embodiment of information communicated from one device to another. In guitar terminology, this usually means the strings inducing electric potentials in guitar pickups, which are passed on through cables into amplifiers, then into speakers where it is converted to sound and sent to the audience's ears. The signal is the message desired to be communicated. Hum, noise, and other interference are generally not considered the signal. In fact, they are considered to degrade the signal.
==== Signal-to-Noise Ratio (SNR) ====
A measure of the audibility of the signal compared to the audibility of noise. The higher the ratio, the "cleaner" and more "high fidelity" the sound.
==== Sharp ====