King J B, Horii Y
Northern Arizona University, Flagstaff.
J Voice. 1993 Jun;7(2):151-9. doi: 10.1016/s0892-1997(05)80345-5.
Nine male singers attempted to match rates and extents of synthesized vocal vibrato at low, middle, and high pitch levels. The results showed that on average, the singers were able to match rates of 3, 5, and 7 Hz within 13%. It was difficult for the singers, however, to match extents of 0.5, 1.0, and 1.5 semitones. Thus, the results indicated singers' reasonably good ability to match rates but, contrary to prevalent opinions, not extents of vocal vibrato.
九名男性歌手尝试在低音、中音和高音水平上匹配合成声乐颤音的速率和幅度。结果显示，平均而言，歌手们能够在13%的范围内匹配3赫兹、5赫兹和7赫兹的速率。然而，歌手们很难匹配0.5、1.0和1.5半音的幅度。因此，结果表明歌手们在匹配速率方面有相当不错的能力，但与普遍观点相反，在匹配声乐颤音的幅度方面并非如此。
