The Fringing Response of Magnetic Reproducers at Long Wavelengths
When a recorded track is wider than the reproducing head, the apparent tape flux at long wavelengths is increased. This produces a boost in low-frequency response, and a measuring error in the -level set- and the frequency response of a multitrack reproducer playing a full-track test tape. Normalized graphs (based on Grimwood's formula) are given which show the appropriate level corrections for common reproducing systems.
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