THE AUDIO FILES.

The audio files used by the DMS2 must be in MP3 format, and are produced using commercially available software.

The DMS2 can accept MP3 bit rates up to 128Kbps, but 64Kbps is the recommended rate as this gives good quality audio at a reasonable file size.

At 64Kbps a 16MByte flash card can hold over 30 minutes of audio. This can be increased by using a larger card (64MBytes) or reducing the bit rate as necessary.

Each of the DMS2 messages to be loaded is assigned to an audio file. This means that the message length and audio quality is determined by the audio file alone, therefore it is possible to have different bit rates between messages on the same DMS2 should this be required.
 