Graphical Analysis of Linear Magnetic Recording Using High-Frequency Excitation
- 1 May 1949
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE
- Vol. 37 (5) , 569-573
- https://doi.org/10.1109/JRPROC.1949.232981
Abstract
The addition of a high-frequency component to an audio signal which is to be recorded magnetically results in a low-distortion, linear recording characteristic under certain conditions. This paper gives a graphical method for constructing the recording characteristic from the BRversus H curve of the record material. An analysis accounts for such magnetic-recording characteristics as variation in sensitivity with bias, linearity at low recording levels, adjustment for maximum sensitivity, and adjustment for minimum distortion.Keywords
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