ears not covered

6.30  ears not covered. Listening situation where one or both ears are not covered with an earphone in a supra-aural cushion. Annotation         An example of a situation where both ears are not covered would be for...

ears covered

6.29  ears covered. Listening situation where both ears are covered simultaneously by earphones mounted in supra-aural cushions held in place by a headband.

dissonance

6.28  dissonance. Phenomenon in which tones presented together produce a harsh or unpleasant sensation. See 6.19.

diplacusis

6.27  diplacusis. See 6.14 (binaural diplacusis) and 6.48 (monaural...

difference tone

6.26  difference tone. Combination tone (see 6.17) with a frequency equal to the difference between the frequencies of two primary tones or their harmonics. Unit, hertz...