Real-time digital audio reverberation system
Patent 5530762 Issued on June 25, 1996. Estimated Expiration Date: 
May 31, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 31, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesReverberation sound producing apparatus Artificial reverberation apparatus for audio frequency signals Sound field correcting apparatus and method Patent #: 5369710 InventorsApplicationNo. 251461 filed on 05/31/1994US Classes:381/63, Reverberators381/61, SOUND EFFECTS704/260Image to speechExaminersPrimary: Kuntz, CurtisAssistant: Oh, Minsun Attorney, Agent or FirmInternational ClassH03G 003/00AbstractA software reverberator system produces a sequence of "reverberated" samples from an input digital word sequence where each word in the input sequence comprises a digitized sample of an original analog audio signal. The invention generates the reverberated samples by adding together several scaled and delayed input words to produce a corresponding reverberated output word. The resulting reverberated output word stream can be converted to analog form in sequence to produce a reverberated version of the original audio signal. The delays are produced by clocking the input words through multi-stage first-in, first-out buffers with a number of stages selected to give the desired delay.Other References
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