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
The RCA Quadulator
Cutting of master lacquers for discrete quadraphonic (CD-4) records requires a device for obtaining sum and difference signals, a method of angular modulation of the 30-kHz carrier and associated signal processors. A new modulation system using phase-lock loop circuitry will be described which results in wider dynamic range and lower distortion than previous techniques, and is of far simpler construction. Careful examination of the subjective effect of individual signal processors has led to a further reduction in side and complexity.
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