The lack of frequency dependence of thresholds for short tones in continuous broadband noise

Huanping Dai, Beverly A. Wright

Research output: Contribution to journalArticle

10 Scopus citations


The threshold for detecting a tonal signal in a continuous broadband noise increases with increasing signal frequency for long, but not for short signal durations. This is revealed by an analysis of previous studies, and confirmed with three subjects in the present experiment using signals covering a frequency range from 125 to 4000 Hz and a duration range from 2 to 1000 ms. The relationship between threshold and signal frequency for a wide range of signal durations is explained by an energy-detector model in which the time window is assumed to match the signal duration and the predicted signal level is adjusted to compensate for the loss of signal energy due to spectral spread at short durations.

Original languageEnglish (US)
Pages (from-to)467-472
Number of pages6
JournalJournal of the Acoustical Society of America
Issue number1
StatePublished - Jul 1 1996
Externally publishedYes


ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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