Standardized Audio Response from Magnetically Striped Motion-Picture Films

Grimwood, W. K.; Kolb, F. J.; Carr, David

doi:10.5594/j09039

Cited by 10 publications

(4 citation statements)

References 11 publications

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“…A sufficiently careful description requires great detail and is just now being developed [e.g., in this paper, and those by Grimwood, Kolb and Carr (1969) and Lovick, Bartow and Scheg (1 969) 1.…”

Section: Measuring the Signalsmentioning

confidence: 99%

“…Thus the only "spacing" of concern in the measurement of tape flux is additional spacing, such as that caused by "dirt" on the head face, inadequate head-to-tape pressure, inadequate wrap angle, incorrect vertex adjustment, and head wear (grooving). These factors are discussed in more detail elsewhere (McKnight, 1967a;Grimwood, Kolb and Carr, 1969. )…”

Section: Wavelength Response At Short Wavelcngfhsmentioning

confidence: 99%

“…9. A similar table for motion-picture systems is given by Grimwood, Kolb and Carr (1969). The differences in the various flux-frequency responses which have been standardized reflect the factors mentioned in Sec.…”

Section: Standard Flux-frequency Responsementioning

confidence: 99%

“…Present standards contain a number of ambiguous statements which are open to misinterpretation. Grimwood, Kolb and Carr (1969) have pointed out several such ambiguities in the NAB and RIAA Standards.…”

Section: Ambiguous Statementsmentioning

confidence: 99%

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Flux and Flux-Frequency Measurements and Standardization in Magnetic Recording

McKnight¹

1969

J SMPTE

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In order to have interchangeable tape recordings, standards are needed for fluxfrequency response and for the absolute value of the recorded flux. It is shown that the recorded signal is best measured and specified as the "shortcircuit flux per unit track width"; measurements techniques are reviewed. The need for equalization and the division into recording and reproducing equalization are developed. Standard equalizations of many organizations are shown as flux-frequency responses. Standard reference fluxes and operating levels are tabulated and discussed. The terms necessary for response and level standardization are proposed and defined and, since terms are not defined in presently published standards, those defined here are compared with usages of the standards.

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Section: Measuring the Signalsmentioning

confidence: 99%

Section: Wavelength Response At Short Wavelcngfhsmentioning

confidence: 99%

Section: Standard Flux-frequency Responsementioning

confidence: 99%

Section: Ambiguous Statementsmentioning

confidence: 99%

See 2 more Smart Citations