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Recording with Feedback Controlled Effective Bias

In magnetic recording, high frequencies present in the signal act as bias for lower frequencies. If supersonic bias is dynamically reduced by the same amount as the added effective bias of the audio signal, several advantages result. The theoretical aspects of constant effective bias, the implementation in a cassette recorder, and the resulting improvements in quality are described.

Author: Jensen, Jørgen Selmer
Affiliation: Bang and Olufsen a/s, Struer, Denmark
AES Convention:70 (October 1981) Paper Number:1852 Import into BibTeX
Subject:Analog Recording and Reproduction

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