These days signal processing has become one of the strongest facets of audio and music production. The function of a signal processor is to modify an audio signal in some intended fashion, in either the analog or digital realm. While effecting all parts of audio production, processing is most useful in controlling: amplitude level (dynamic range), the spectral content of a waveform (equalization), and effects (such as delay, reverb, recreating room ambience, etc) (Huber, 2001). Keeping these aspects of processing in mind can provide a fresh perspective on some of your favorite songs.
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