Abstract
Iterated rippled noise (IRN) stimuli are generated by a cascade of delay (d), gain (g), and add networks. The matched pitch of IRN stimuli was determined as a function of the type of network used to generate IRN stimuli, the delay (d = 2, 4, and 8 ms), the number of iterations (n = 1,2,3,4,6,8) of the delay and add networks, and whether the delayed noise was added (g = 1) to or subtracted (g= -1) from the undelayed noise. The matched pitch of IRN stimuli did not depend on the type of network. When g= 1 (addition), the matched pitch did not depend on the number of stages of iterations (n) and was always equal to the reciprocal of the delay (l/d). When g = -1 (subtraction), the match pitch depended on n. When n = 1, the matched pitch of IRN stimuli was ambiguous having two pitches in the region of l/d ± 10%. When n = 8, the match pitch was equal to 1/2d. This change in the pitch occurred between n=2 and 6. The results are discussed in terms of spectral and temporal models of complex pitch processing. A temporal model based on autocorrelation was able to provide quantitative predictions for the pitch of these IRN stimuli. However, a spectral type of model can also account for the pitch of these IRN stimuli.
Original language | English (US) |
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Pages (from-to) | 511-518 |
Number of pages | 8 |
Journal | Journal of the Acoustical Society of America |
Volume | 100 |
Issue number | 1 |
DOIs | |
State | Published - Jul 1996 |
Externally published | Yes |
ASJC Scopus subject areas
- Arts and Humanities (miscellaneous)
- Acoustics and Ultrasonics