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
The Measurement and Calibration of Sound Reproducing Systems - July 2015
An FM Tape Recorder of High Audio Quality
Sound recording using frequency modulation techniques eliminates two shortcomings of conventional direct recording: 1) distortion due to nonlinearities in the magnetic oxide and, 2) fluctuations in the playback response due to variations in the tapes. Yet FM recording is not prohibitively expensive as is digital recording (PCM). A computer simulation showing the feasibility of a 53 kHz FM carrier (for high fidelity audio) is reported. A low distortion FM tape recorder is built and analyzed.
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