GRN Saber - Managing Audio Content; File Structure and Playlist; Navigation and Audio Cues

Saber Hand Wind Audio Player - User Guide
4. Managing Audio Content
4.1 File Structure
The Saber can play MP3 and WMA audio files.
The file system is structured in two levels: files within folders. Each folder represents an album,
book or program. Each file in a folder is one track. The Saber has buttons to go forward and
backward between tracks, and forward and backward between folders.
Content should be logically grouped into folders and tracks to enable users to quickly jump to the
desired content.
4.1.1 The Playlist
The player creates an internal playlist which it uses to manage the structure and sequence of
playback.
The playlist is created automatically when the unit is first powered on after changes are made by the
computer.
It is recommended that 20Mb of space is left available for the playlist on the internal memory and
SD cards. If there is insufficient space to create the playlist, the player will turn on, and the green
light flashes at high speed, but will then turn off.
4.2 Navigation
The Saber does not have any kind of visual display to show which folder and track is being played,
as these can be unreliable and/or unreadable to the users for which this player has been primarily
developed. Therefore it is important to have appropriate audio signals to tell the listener where they
are within the whole playlist.
4.2.1 Audio Titles
Audio titles should be included at the beginning of each program, and possibly even each track.
These audio titles would announce the name and/or number of the book, chapter or message.
Audio titles should be in the vernacular of the people who will be using the machine. Optionally
they could also be in a second language such as a local trade language.
The audio title should be the very first thing heard at the beginning of each track, even before any
introductory music. It can even be in a very short track by itself (however care must be taken, as
tracks less than 2 seconds long can cause problems on some kinds of players). Either approach
allows the user to jump to each track and immediately hear the audio title. This allows specific
programs and tracks to be located quickly.
4.2.2 Examples
Recording the Bible: Use a folder for each book, and a track for each chapter or passage. The
audio title for each folder would be the name of the book, eg "Genesis". The audio title for each
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