Re-examining the upper limit of temporal pitch.
Re-examining the upper limit of temporal pitch.
复制标题
DOI：
10.1121/1.4900917
复制
发表时间：
2014-12
期刊：
影响因子：
--
通讯作者：
Carlyon RP
中科院分区：
文献类型：
--
作者：
Macherey O;Carlyon RP
五个听力正常的听众音高排列的谐波复合不同的基频（F0）过滤在三个不同的频率区域。谐波在正弦、交替正弦-余弦（ALT）或脉冲扩展（PSHC）相位中求和。ALT和PSHC复合物的包膜以2F 0和4F 0的速率重复。音高对应于这些利率在低F0，但是，随着F0的增加，有一个范围内的F0的音高保持不变或下降。伽马通滤波器组仿真表明，随着F0增加，滤波器中相互作用的谐波数量下降，该滤波器的输出从2F 0或4F 0重复切换到F0重复。除了滤波到最高频率区域（7800-10800 Hz）的复合物外，结合这种现象的模型很好地解释了数据。为了解释该区域中的数据，有必要假设非常高频率的听觉滤波器比传统上认为的更尖锐，和/或听觉系统将较小的权重应用于输出以高速率重复的滤波器。研究结果还提供了新的证据，可以从纯粹的时间线索的最高音高，并证实了最近的报告，一个复杂的音高可以从非常高的频率解析谐波。
Five normally-hearing listeners pitch-ranked harmonic complexes of different fundamental frequencies (F0s) filtered in three different frequency regions. Harmonics were summed either in sine, alternating sine-cosine (ALT), or pulse-spreading (PSHC) phase. The envelopes of ALT and PSHC complexes repeated at rates of 2F0 and 4F0. Pitch corresponded to those rates at low F0s, but, as F0 increased, there was a range of F0s over which pitch remained constant or dropped. Gammatone-filterbank simulations showed that, as F0 increased and the number of harmonics interacting in a filter dropped, the output of that filter switched from repeating at 2F0 or 4F0 to repeating at F0. A model incorporating this phenomenon accounted well for the data, except for complexes filtered into the highest frequency region (7800-10800 Hz). To account for the data in that region it was necessary to assume either that auditory filters at very high frequencies are sharper than traditionally believed, and/or that the auditory system applies smaller weights to filters whose outputs repeat at high rates. The results also provide new evidence on the highest pitch that can be derived from purely temporal cues, and corroborate recent reports that a complex pitch can be derived from very-high-frequency resolved harmonics.
登录
查看更多内容
影响因子：
2.8
作者：
PIJL, S;SCHWARZ, DWF
通讯作者：
SCHWARZ, DWF
影响因子：
2.4
作者：
McDermott, HJ;McKay, CM
通讯作者：
McKay, CM
影响因子：
2.4
作者：
GOLDSTEIN, JL
通讯作者：
GOLDSTEIN, JL
DOI：
10.1073/pnas.1015291108
发表时间：
2011-05-03
影响因子：
11.1
作者：
Oxenham, Andrew J.;Micheyl, Christophe;Santurette, Sebastien
通讯作者：
Santurette, Sebastien
DOI：
10.1121/1.2821986
发表时间：
2008-02
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Carlyon RP;Mahendran S;Deeks JM;Long CJ;Axon P;Baguley D;Bleeck S;Winter IM
通讯作者：
Winter IM