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difference tone
difference tone A difference tone, or Tartini’s tone, is a combination tone heard in relation to two primary tones and described as the stronger of the two combination tones.
A difference tone, or Tartini’s tone, is a combination tone heard in relation to two primary tones and described as the stronger of the two combination tones. It is usually taken to have a vibration rate equal to the difference between the rates of the two primary tones, though the source also notes that under different conditions one of two such tones may be heard.