Talk:Hatsune Miku/@comment-213.184.245.178-20120817084649/@comment-5017500-20120817155059

1) The unit of frequency is Hz, not Gz.

2) Fundamental frequency and formant frequency are completely different things. When people feel a voice is high-pitched, it's not the fundamental frequency but formant frequency that really matters.

Consider Miku and Luka are both singing the center C. Then these two voices have the same fundamental frequency, 262Hz. But Miku's voice sounds high-pitched than Luka's, because Miku's formant frequencies are higher than Luka's. Miku's optimum range is A3 ~ E5 (A2 ~ E4 in Yamaha notation). E5 is about 659Hz. So in this sense, her upper limit is around 660Hz. But the fact that her upper limit is low doesn't mean Miku isn't high-pitched. The upper limit 660Hz means the fundamental frequency, not the formant frequency.