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.
Output of a linear hearing aid tested with the signal shown in Figure 6, with the test signal subtracted in order to reveal residual products in the output. The output shown in this graph is the resulting IMD with energy primarily in the 500 Hz to 2000 Hz region.
