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Convention Paper

Master-Tape Equalization Revisited

Authors: McKnight, John G.; Hille, Peter F.

AES Convention 42 · Paper 856 · May 1972

Abstract

Optimum signal minus noise level of a commercial tape or disc record requires the signal- and noise-spectra of the studio master tape to be matched to those of the commercial record. The use of the NAB 380 mm/s (15 in/s) equalization (3150 Hz transition frequency) with modern tapes results in frequency- and noise-spectra which have much higher levels at higher frequencies than the final records. Other practical equalizations are studied, and a 12,500 Hz reproducing transition frequency is suggested for further evaluation.

Details

Published in
AES Convention 42
AES Convention
42
Paper number
856
Publication date
May 6, 1972
Affiliation
Ampex Corporation, Redwood City, CA (See document for exact affiliation information.)
Type
Convention Paper