Warren, Bashford, Healy, and Brubaker (1994) reported increases in the apparent duration of the fainter sound (the inducee), which alternated with a sound of higher intensity (the inducer). The inducer was a 70 dB, 1 kHz sine tone, and the inducee was a 66 dB sine tone, varying between nine frequency values, one value also 1 kHz, and the other eight frequencies were 1, 2, 6, and 10 semitones (STs) higher or lower. Both the inducer and the inducee lasted 200 ms.
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