David Burgess Posted May 31, 2020 Report Share Posted May 31, 2020 1 hour ago, JohnCockburn said: No, you wouldn't. You'd be generating an amplitude variation at that frequency. Which isn't the same thing. Maybe the most helpful way to see this is to consider an analogy between light and sound. I'll explain when I come back from taking the dog for a dump. What is an amplitude variation, other than a greater or lesser variance in air pressure (when the conduction medium is air)? These cyclic pressure variations, and the frequency at which they happen, are what the ear responds to, and what is interpreted as pitch. This includes the pressure variations which are generated by combining two tones, to produce a third set of pressure pulses, at a different frequency from either of the two which were combined to generate it. Quote Link to comment Share on other sites More sharing options...
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