Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Absolute Flux and Frequency Response Characteristics in Magnetic Recording: Definitions and Standardization

Authors: McKnight, John G.

AES Convention 31 · Paper 447 · October 1966

Abstract

In order to have interchangeable tape recordings, standards are needed for frequency response characteristics and for the recorded flux. The quantities, terms, and definitions needed for this standardization are developed; the absolute flux and the wavelength response of the recorded signal are most appropriately expressed as the -short-circuit remanent flux-; the ratio of this flux to the voltage input to the recorder is defined as the -recording flux characteristic.- The need for equalization, and the division into recording and reproducing equalization, are developed. Standard equalization of many organizations are shown as -flux characteristics.- Terms and definitions used in the various standards are compared with those developed here. This shows that the different standards are not consistent; different concepts are used, and the same terms have conflicting usages, resulting in confusion when standards are compared. Standard -reference fluxes- are tabulated and briefly discussed. An extensive list of standards is appended.

Details

Published in
AES Convention 31
AES Convention
31
Paper number
447
Publication date
October 6, 1966
Affiliation
Ampex CEPD, Los Gatos, CA (See document for exact affiliation information.)
Type
Convention Paper