iNS/iDS 2-Wire System Manual
350-077
Rev. D - 1/20/2021
Page 93 of 107
13.
Using the Polara Field Service App for PC to Upload Audio Files
13.1
Preparing Audio Files
The audio files which are played in the iNav units are encoded using the open-source Ogg Vorbis codec. Polara provides
professionally recorded custom audio files on the website. Go to Polara.com and click on the Audio Library option. You
can search for audio files which have already been recorded if the streets on the desired intersection are common.
However, you can also request to have messages recorded for you by clicking on the Request Custom Message option
and filing out the form on the website.
If you wish to record your own messages or already have messages in another format (such as .wav or .mp3), these
messages can be converted to the specific Ogg Vorbis format needed by the iNav devices using the Convert Audio
option.
In the Convert Audio screen, click Open Files and select the files you wish to convert, or just drag and drop your audio
files onto into the program. Then click Convert. The converted sound files will be saved to your PC in the same directory
as the original files, ready to upload to the PBS