Audio signal processing

<p>Audio signal processing is a subfield of <a href="/facts/Signal_processing/Npaja6zb">signal processing</a> that is concerned with the electronic manipulation of <a href="/facts/Audio_signal/rFSTI9IF">audio signals</a>. Audio signals are electronic representations of <a href="/facts/Sound_wave/DlKXlPuF">sound waves</a>—<a href="/facts/Longitudinal_wave/KoysWuIN">longitudinal waves</a> which travel through air, consisting of compressions and rarefactions. The energy contained in audio signals or <a href="/facts/Sound_power_level/CDs5e3ta">sound power level</a> is typically measured in <a href="/facts/Decibel/0LyxAPXh">decibels</a>.  As audio signals may be represented in either <a href="/facts/Digital_signal_(signal_processing)/bCtTHxre">digital</a> or <a href="/facts/Analog_signal/xDbb4uB5">analog</a> format, processing may occur in either domain.  Analog processors operate directly on the electrical signal, while digital processors operate mathematically on its digital representation.
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Audio signal processing open-in-new

Audio signal processing