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Term: Frequency response (audio)

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Term: Frequency response (audio)

This concept applies to any waveform, ranging from radio spectrum frequencies to earthquakes. The focus for this definition is sound, where the term is usually referenced to electronic amplifiers, microphones, loudspeakers, or other elements in a recording system. Frequency response is the measure of any system's output to an input signal of varying frequency (but constant amplitude). Frequency response is typically characterized by the magnitude of the system's response, measured in dB, and the phase, measured in radians, versus frequency.
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