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.
Example of how the average vowel spacing (AVS) measure is derived. The mean M1 × M2 location for each vowel is represented by the symbols. The AVS is the average of the lengths of the broken lines between each possible vowel pair. Thus, a higher AVS indicates greater separation, and therefore greater contrast, between vowels.
