It is well known that poor waveform reproduction from a magnetic recording system is due to nonlinear phase response. However, a quantitative analysis has lately been attempted. The authors viewed the problem from its group delay characteristics and carried out measurements on various recording formats using a pulse train method. A peculiar group delay caused by phase nonlinearity was observed in the low-frequency range and its origin was tracked down to the playback process.

Authors: Muraoka, Teruo; Saitoh, Susumu; Imao, Hiroshi
Affiliation: Victor Company of Japan, Ltd., Audio Engineering Research Ctr., Kanagawa-Ken, Japan
AES Convention: 63 (May 1979) Paper Number: 1466
Publication Date: May 1, 1979

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