LRAD
450XL
GENASYS INC.
Manual Part No.: 112343-00 Rev. E
24
11. The Normalized Output File should have the following characteristics:
a. Silence is removed from the beginning and end of the recording. This allows for
the audio to start up quickly after the PLAY button is pressed on the MP3 player
used with the LRAD.
b. The level of the recording is increased (normalized), so it will sound louder than
the original recording when played back if the original recording was not loud
enough.
c. The recording is equalized to remove low frequency content that cannot be
reproduced by the LRAD.
12. The “About” tab of the application shows the current software version.
The following figure shows the LRAD Normalizer software while a recording named “GREETING
1” is being made. Note the RECORD button changes to green and the status bar shows
“Recording”.
Figure 19: LRAD Normalizer During Recording
Audio files created by LRAD Normalizer are saved as WAV format.
These recordings can be dragged onto the USB Mass Storage drive that appears when the MP3
Player/Control unit is connected to a PC via the provided USB download cable.
