Journal Forum

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015

Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
1 comment

The Measurement and Calibration of Sound Reproducing Systems - July 2015

Access Journal Forum

AES E-Library

Control of Modulation Noise in Magnetic Recording Tape

Document Thumbnail

Factors in the formulation and manufacture of magnetic tape which contribute to the problem of modulation noise have been defined. The effects of formulation variables (oxide, binder and additive types and proportions) are relatively small. The effects of manufacturing variables, particularly calendering, are very large. Improvements in modulation noise of 12 dB were found when the calendering process was optimized. The best calendering process requires the use of homogeneous compliant rolls instead of the composite type previously used. Infrared transmission microscopy was developed as a useful technique for identifying and controlling the calendering-related modulation noise.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society