Detection and discrimination of gliding tones as a function of frequency transition and center frequency

The Journal of the Acoustical Society of America
J P Madden, K M Fire

Abstract

Two experiments were performed to investigate subjects' ability to detect and discriminate 50-ms up-glides in frequency in several different conditions. In the first experiment, the subjects indicated which of two signals increased more in pitch. The comparison, or standard signal, was a sinusoid which increased in frequency by either 0, 250, or 500 Hz. Center frequencies were 0.5, 1, 2, 4, and 6 kHz. Discrimination thresholds were obtained in both nonroved and roved conditions. In the roved condition, the actual center frequencies of the signals were varied randomly over a range equal to 0.1 times the nominal center frequency. The second experiment was the same as the first, except that the standard signals were swept over a frequency range equal to 0.5, 1, and 2 times the equivalent rectangular bandwidth (ERB) of the auditory filter at the nominal center frequency. Discrimination thresholds expressed as delta Hz/ERB varied little as a function of center frequency as long as the frequency transition of the standard was a constant proportion of ERB. In addition, discrimination thresholds did not vary significantly as a function of the frequency extent of the standard when the extent was one ERB or less, but doubled when the ext...Continue Reading

Citations

Nov 10, 2004·The Journal of the Acoustical Society of America·Hongbin Chen, Fan-Gang Zeng
Jun 17, 2005·The Journal of the Acoustical Society of America·J Lyzenga, R P Carlyon
Dec 13, 2005·The Journal of the Acoustical Society of America·Diane Kewley-Port, Shawn S Goodman
Nov 28, 1997·The Journal of the Acoustical Society of America·J P Madden, K M Fire
Jul 27, 1999·The Journal of the Acoustical Society of America·A Sek, B C Moore
May 20, 2006·The Journal of the Acoustical Society of America·Nick Thyer, Doug Mahar
Jul 22, 1998·The Journal of the Acoustical Society of America·B C Moore, A Sek
Jun 6, 2008·The Journal of the Acoustical Society of America·Jinyu Qian, Virginia M Richards

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