PDF(Pubmed)
Abstract：
Difference limens for fundamental frequency (F0), F0DLs, are usually small for complex tones containing low harmonics that are resolved in the auditory periphery, but worsen when the rank of the lowest harmonic increases above about 6-8 and harmonics become less resolved. The traditional explanation for this, in terms of resolvability, has been challenged and an alternative explanation in terms of harmonic rank was suggested. Here, to disentangle the effects of resolvability and harmonic rank the complex tones were presented either diotically (all harmonics to both ears) or dichotically (even and odd harmonics to opposite ears); the latter increases resolvability but does not affect harmonic rank. F0DLs were measured for 14 listeners for complex tones containing harmonics 6-10 with F0s of 280 and 1400 Hz, presented diotically or dichotically. For the low F0, F0DLs were significantly lower for the dichotic than for the diotic condition. This is consistent with a benefit of increased resolvability of harmonics for F0 discrimination and extends previous results to harmonics as low as the sixth. In contrast, for the high F0, F0DLs were similar for the two presentation modes, adding to evidence for differences in pitch perception between tones with low-to-medium and very-high frequency content.
摘要：
基频的差值(F0)，F0DL,对于包含在听觉外围解析的低谐波的复杂音调，通常很小，但是，当最低谐波的秩增加到大约6-8以上并且谐波的分辨率降低时，情况会恶化。对此的传统解释，在可分辨性方面，已经受到挑战，并提出了一种关于谐波秩的替代解释。这里,为了解决可分辨性和谐波等级的影响，复杂的音调以双向（双耳的所有谐波）或双向（双耳的偶数和奇数谐波）呈现；后者增加了可分辨性，但不影响谐波等级。F0DL是针对14个听众测量的，这些听众包含谐波6-10的复杂音调，其中FOs为280和1400Hz，双向或双向呈现。对于低F0，二分法的F0DL明显低于二分法。这与用于F0鉴别的谐波的可分辨性增加的益处一致,并且将先前的结果扩展到低至第六的谐波。相比之下,对于高F0，F0DL与两种演示模式相似，增加了具有低到中和非常高频率内容的音调之间的音高感知差异的证据。
