Detection of unexpected tones with short and long durations

B. A. Wright, Huanping Dai

Research output: Contribution to journalArticle

46 Scopus citations


The detectability of short and long unexpected tones masked by a continuous wideband noise was assessed using a probe-signal method. This method leads the listener to expect a target frequency by presenting the signal most often at that frequency, and only occasionally at other unexpected probe frequencies. The probe-signal contour (percent correct as a function of probe frequency) was considerably broader with 5-ms than with 295-ms signals. However, auditory filter shapes measured using the notched- noise technique were very similar for those two signal durations, indicating that the results obtained in the probe-signal conditions do not simply reflect peripheral frequency selectivity. Further supporting this interpretation, probe tones having the same frequency but a different duration from the target were poorly detected. It is proposed that the subject listens through a time-frequency window whose location and shape in the time-frequency plane is determined by the duration and frequency of the target.

Original languageEnglish (US)
Pages (from-to)931-938
Number of pages8
JournalJournal of the Acoustical Society of America
Issue number2
Publication statusPublished - 1994
Externally publishedYes


ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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