Analog signal processing is any signal processing conducted on analog signals by analog means. "Analog" indicates something that is mathematically represented as a set of continuous values. This differs from "digital" which uses a series of discrete quantities to represent signal. Analog values are typically represented as a voltage, electric current, or electric charge around components in the electronic devices. An error or noise affecting such physical quantities will result in a corresponding error in the signals represented by such physical quantities.
Examples of analog signal processing include crossover filters in loudspeakers, "bass", "treble" and "volume" controls on stereos, and "tint" controls on TVs. Common analog processing elements include capacitors, resistors, inductors and transistors.
Other articles related to "analog signal processing, signals, analog, signal":
... Analog signal processing is for signals that have not been digitized, as in legacy radio, telephone, radar, and television systems ...
... When a channel is changed on an analog television set or radio, an analog filter is used to pick out the carrier frequency on the input signal ... Another common analog system is an electric guitar and its amplifier ... Most amplifiers are analog because they are easier and cheaper to make than making a digital amplifier ...
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