Definitions for "Signal Processing"
The art of modifying an existing sound through the use of electronic circuitry. The circuit can be analog or digital ie a Roland Space Echo is analog while a Zoom 1204 is digital.
Any active processing performed on an audio signal designed to alter or enhance its sonic characteristics.
Electronic functions that enhance the representations of physical or electrical phenomena. Temperature, pressure, vibration, acceleration and flow are examples of physical properties that rely on signal processing enhancements. The detection and conversion of RF, X-ray or ultrasonic energy into images and sound is another form of signal processing.
Keywords:  impulses, transmission
Transmission of impulses.