Method and apparatus for providing a visual indication of a rela

Details Method and apparatus for providing a visual indication of a rela Method and apparatus for providing a visual indication of a rela

1985-09-11

1987-03-03

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

358 10, 358 81, 358 82, 84464R, 324 88, H04R 500

Patent

active

046481133

ABSTRACT:
A visual indication of the relationship between first and second electrical signals, such as the left and right channel signals in a stereophonic audio system, is provided through use of a video vectorscope. The first and second signals are used to modulate the amplitude of two sinusoidal waves at a subcarrier frequency and in phase quadrature, so as to synthesize the chrominance portion of a composite video signal. The two modulated sine waves are additively combined, and the resulting signal is applied to the input terminal of the vectorscope.

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