| Autor: |
Stover, L. J., Feth, L. L., Burns, E. M. |
| Zdroj: |
Journal of the Acoustical Society of America; 1981, Vol. 69 Issue S1, pS118-S119, 2p |
| Abstrakt: |
This study was designed to investigate the pitch of complex signals contained within one critical bandwidth. Four well-trained listeners, with normal hearing, were asked to adjust the frequency of a pure tone until it matched the pitch of various multicomponent periodic signals. These complex tones were centered at 1000 Hz with bandwidths from 10-50 Hz. At each bandwidth, the number of components ranged from two to twenty. In a control condition, each subject also adjusted the frequency of the variable tone until it matched the pitch of a single tone set at 1000 Hz. After extensive practice, a total of twenty matches to each test signal was obtained for each subject. Repeated matches were distributed throughout several one-hour test sessions held on different days. Generally, the average value of the frequency of the adjusted tone did not differ significantly from the center frequency for most of the complex signals investigated. Two-component complexes appeared to be resolved at bandwidths much narrower than the accepted critical band values, however, because several listeners consistently matched the pure tone to two different frequencies. One of the four subjects actually reported multiple pitches more often than single pitches for the majority of the test signals. The results will be discussed in light of current theories of pitch encoding within the auditory system. [Supported by grants from NINCDS.] [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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