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...

critical band

6.24  critical band. (a) For loudness, that frequency band within which the loudness of a band of continuously distributed sound of constant sound pressure level is independent of its bandwidth (see also 6.31); (b) For masking (see C11.31), that frequency...

aural combination tone

6.17  combination tone; aural combination tone. Secondary tone that can be perceived when two loud primary tones are presented simultaneously. The secondary tone may be a difference tone or a summation tone. Several combination tones may be produced from a...

combination tone

6.17  combination tone; aural combination tone. Secondary tone that can be perceived when two loud primary tones are presented simultaneously. The secondary tone may be a difference tone or a summation tone. Several combination tones may be produced from a...

click

6.16  click. Acoustic signal typically produced by exciting an earphone or speaker with a brief duration electrical pulse. Annotation 1      For an appropriately brief pulse (e.g., 0.1 ms), the acoustic spectrum of a click is...