Signal-To-Noise Ratio (S/N Ratio)

Signal-To-Noise Ratio (S/N Ratio) Often arbitrarily assigned, in an audio system, it is the ratio between the desired signal level and the extraneous audible material, such as hum, surface scratches, vibrations from components, etc. It is usually expressed in decibels (dB). For instance, an S/N ratio of 50 dB means that the signal is 50 dB louder than the extraneous noise. Obviously the higher the ratio, the better the result, because an overlay of equipment-generated background noise is…