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Convention Paper

A Method for Level Variance Analysis of Magnetic Tapes

Authors: Kitamura, M.

AES Convention 70 · Paper 1816 · October 1981

Abstract

This paper describes an analysis of level variance which is peculiar to magnetic tape recording. This level variance causes a calibration error in magnetic recording systems. The result of the analysis was applied to a micro-computer mounted cassette taperecorder which made possible the automatic adjustment of the recording level, frequency response and bias current. The adjustment is done in a time length which is much shorter than that of manual adjustment using a VU meter. From this analysis the accuracy of the adjustment has come to be estimated as a function of the time length which is determined by the conditions of level variation observation and averaging.

Details

Published in
AES Convention 70
AES Convention
70
Paper number
1816
Publication date
October 6, 1981
Session subject
Analog Recording and Reproduction
Affiliation
Victor Company of Japan, Ltd., Yamato-shi Kanagawa-Ken, Japan (See document for exact affiliation information.)
Type
Convention Paper