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 EMS plot for a typical speaker. The top waveform depicts the raw audio file, the middle portion depicts the extracted amplitude envelope, and the bottom portion displays the modulation index for each modulation band. EMS = envelope modulation spectrum.
