Abstract
Fundamental frequency difference limens were measured for a target harmonic complex tone (HCT) in the absence and presence of a masker HCT, which were filtered into the same bandpass frequency region and were gated on and off synchronously. There were three kinds of nominal fundamental frequencies (F0s) for target (200, 400, and 800 Hz), five kinds of F0 separations between target and masker (0, ±3, and ±6 semitones), and four kinds of phase combinations. Results found significant effects of nominal F0, phase combination, and F0 separation between target and masker. Analysis based on temporal profile proved that the significant effect of nominal F0 could be explained by peak height of target, and that the significant effects of F0 separation and phase combination could be explained by the ratio of temporal peak heights between target and masker. Thus it is suggested that F0 discrimination of medium-rank harmonics probably depends on the use of temporal fine structure information.
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