Supporting files shall be 2K-10MB in size with a format of MP3 or PCM. Keep in mind that PCM is not a compressed format if your audio has a lot of data you are better off with an MP3 file although you will lose some quality because of the compression you will not see a large difference in this type of application. 

Upload the files using a USB Drive add the files on a folder called "Voice" on the root of your drive. Be sure to have your recorder up to date in firmware. You will need an amplifier connected to Audio out or MIC Out. 

*Keep in mind that PCM is not a compressed format if your audio has a lot of data you are better off with an MP3 file, although you will lose some quality because of the compression you will not see a large difference in this type of application. 

If you have any questions feel free to give us a call or open a chat session.