Figure 10.
(a) Mouth area and head area for Roberto Alagna singing A4 on an ∕ɔ∕ vowel. (b) Corresponding frequency spectrum. (c) Mouth area and head area for Tony Vincent singing A-flat4 on an ∕a∕ vowel, and (d) corresponding frequency spectrum.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.