Difference Tone


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difference tone

[′dif·rəns ‚tōn]
(acoustics)
A combination tone whose frequency equals the difference of the frequencies of the pure tones producing it.

Difference Tone

 

a combination tone of frequency ω1 - ω2 that arises in a nonlinear acoustic system when two sound waves of frequencies ω1 and ω2, respectively, act on the system.