Figure 1.
Pitch tracks. Pitch tracks of the three high-rising (red lines), mid-level (black lines) and low-falling (blue lines) tokens.
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.