Percussion instrument sounds are generally characterized by a rapid attack, poorly defined pitch and a long decay. In the production of percussion sounds, the more simple the complete sound envelope, the better, as long as each component is reasonably authentic. A circuit with adjustable striking device, that can be tuned to a given pitch, enables the production of a large array of percussion types. White noise, suitable formant filters and keying circuits provide the other side of the family. Combinations of the two complete the picture for most of the special cases. The foregoing philosophy was applied during the design of the Wurlitzer -side Man-.
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