Dual delay line storage sound signal processor

Details Dual delay line storage sound signal processor Dual delay line storage sound signal processor

1974-05-28

1976-02-03

Olms, Douglas W.

Telegraphy

Systems

Printing

178 66TC, 178DIG3, 179 1555R, H04J 318

Patent

active

039366103

ABSTRACT:
Sound signals are processed for compression or expansion utilizing storage and frequency transformation into storage delay lines operated alternately to transform alternate segments of the sound signal respectively with the outputs of the two delay lines combined to produce a continuous sound signal output with the frequency components thereof transformed.

REFERENCES:
patent: 3499996 (1970-03-01), Klayman
patent: 3621150 (1971-11-01), Pappas
patent: 3681756 (1972-08-01), Burkhard
IEEE Journal of Solid-State Circuits; Vol. 564, No. 3, June 1969, "Bucket Brigade Electronics . . .," by Sangster et al., pp. 131-136.
Nature; Vol. 189, No. 4759, Jan. 14, 1961, pp. 117-119, "A Versatile Method for Short Term Spectrum Analysis . . .," by Gill.

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