Avionics Innovations DMP-300 User manual

DMP-300 Digital Media Player
Users Guide
Version: V1.8
Date: 10 Oct 2009
Doc Number: DMP020
AVIONICS INNOVATIONS, INC.
2450 Montecito Road
Ramona, CA 92065
Phone [phone]
Fax [phone]
www.avionicsinnovations.com

DMP-300 USERS GUIDE PAGE 2 OF 24
P/N DMP020 V1.8
Revision History
Version Date Description By
V1.0 05-Jun-01 Initial Release SB
V1.1 10-Jun-02 First production release SB
V1.2 30-Jul-02 Added info on GPS triggering SB
V1.3 11-Sep-02
-Clarified single-level restore of interrupted tracks.
-Added persistent power up music track.
-Added remote operations of PAUSE input.
SB
V1.4 14-Jan-03 Added “Jog Mode” to Triggers 6 and 7 SB
V1.5 14-Sep-03
-Added Triggers 1 and 2 for remote volume
control in “Jog Mode”. Changed timer to 5 sec.
-Added volume display while changing volume.
-Added setup option for elapsed time display
during PLAY.
SB
V1.6 14-Feb-05
-Added “Disable Chime” option in Cardprep
-Strengthened warning re other brands of CF SB
V1.7 20-Oct-06
- Added CardPrep support for importing playlists
- Updated all screen shots
SB
V1.8 10-Oct-
09
Added DMP-300 Model Name DH

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P/N DMP020 V1.8
Table of Contents
Revision History ..................................................................................................2
Table of Contents................................................................................................3
Overview..............................................................................................................5
File Types .....................................................................................................6
Speech Files.................................................................................................6
Music Files....................................................................................................6
Memory Cards..............................................................................................6
Display .................................................................................................................7
Front Panel Operations.......................................................................................7
TO SELECT LANGUAGES:........................................................................7
TO PLAY A SPEECH FILE: ........................................................................8
TO PLAY A MUSIC FILE:............................................................................8
TO PAUSE PLAYBACK: .............................................................................8
TO CANCEL PLAYBACK :..........................................................................8
TO CHANGE VOLUME LEVEL:.................................................................8
TO CHANGE SELECTIONS WHILE PLAYING: .......................................9
External Operations ............................................................................................9
Track Selection by GPS Position ................................................................9
Track Selection by External Trigger ............................................................9
Remote PAUSE/PLAY Button.....................................................................9
Jog Mode: Track Select and Volume Control With External Switches ..10
Track Select................................................................................................10
Volume Control...........................................................................................11
Creating MP3 Files ...........................................................................................11
Preparing a Memory Card with CardPrep.......................................................12
Installing DMP-300 CardPrep....................................................................12

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P/N DMP020 V1.8
Running CardPrep .....................................................................................12
To add Speech Files: .................................................................................12
To add Music Files: ....................................................................................13
Adding Music Files Individually..................................................................13
Adding a Folder of Music Files ..................................................................14
Adding an Exported Playlist of Music Files...............................................15
To Select Triggers or Attributes:................................................................16
♦ Discrete Triggers ...........................................................................16
♦ GPS Triggers .................................................................................16
♦ Endless Looping ............................................................................17
♦ Jog Mode .......................................................................................17
♦ Normal vs. LOUD Volume ............................................................17
♦ Resume or Cancel if Interrupted...................................................17
♦ Play Automatically at Power-up or When Idle..............................17
To Select Setup Items:...............................................................................18
♦ Default Languages Enabled .........................................................18
♦ Custom Card Titles........................................................................18
♦ Chiming Between Speech Tracks................................................18
♦ Selecting Internal or External Chime............................................19
♦ Changing System Prompts...........................................................19
To Copy all Files and Settings to the Card: ..............................................21
To Save or Open a Card File.....................................................................22
To Import a DMP-100 Card File ................................................................22
Notes on GPS Triggering...........................................................................22
Notes on Interrupting and Restoring Audio Tracks ..................................23

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P/N DMP020 V1.8
Overview
The DMP-300 Digital Media Player is a self-contained unit which stores and replays pre-
recorded audio tracks. The audio tracks are encoded in “Motion Picture Expert Group
(MPEG) Level 3” format, commonly referred to as “MP3”. Audio files are stored in a
removable CompactFlash™ memory card which is prepared and installed by the user.
Audio tracks are selected via a single rotary pushbutton on the front panel of the DMP-
300. Optionally, the DMP-300 may be connected to a maximum of seven external
discrete trigger inputs, each of which can be configured in software to select a particular
audio track. In addition, the RS232 data from a panel-mount GPS may be connected to
the DMP-300 to allow triggering of audio files based on geographic position.
The DMP-300 memory card must be prepared using CardPrep software, which is
provided with the DMP-300 and may also be downloaded from the Avionics Innovations
website at www.avionicsinnovations.com. CardPrep is a Windows application which
assembles your desired MP3 files into the DMP-300 format, and allows you to specify
attributes such as language or trigger information.
The DMP-300 memory card can contain up to 500 individual MP3 audio files. Speech
files can be organized into as many as 16 languages, and music files can be organized
into as many as 127 music lists. Total audio capacity is determined by the memory size of
each card. In general, a DMP-300 memory card will hold approximately one minute of
sound per megabyte of memory at CD-quality data rates.
CardPrep gives you control over many aspects of DMP-300 operation. You can:
♦Display a custom two-line message on power up
♦Automatically play a selected speech track on power up, which will then play once
for each language enabled (also selectable)
♦Automatically play a selected music track, an entire music list, or a continuous
random mix of all music tracks on power up
♦Attach a discrete or GPS trigger to any audio track, music list, or “continuous mix”
♦Designate any music track to be played as a continuous loop
♦Designate, for each track, whether or not it should resume playing after it is
interrupted by a new play command
♦Designate, for each track, whether it is played at the normal volume level or at a
pre-determined “LOUD” setting. This allows background music to play at a quiet
volume setting, while important safety messages are played at a higher level.
♦Select whether or not a chime is sounded between each language of a speech
track
♦Select whether the DMP-300 sounds an external chime for speech tracks or
whether it plays a specified MP3 file (two different MP3 recordings of chime
sounds are provided).
All configuration data is contained on the memory card, and can be changed by simply
inserting a different card. Each card also contains the latest version of DMP-300 firmware,
which is automatically loaded by the unit if needed.

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P/N DMP020 V1.8
File Types
Each audio file contained in the DMP-300 memory card must be designated as either
“speech” or “music”. While the actual audio content is irrelevant, this designation controls
how each file is presented on the DMP-300 display.
Speech Files
Every “Speech” file has a title and a language, as well as trigger and display attributes.
Speech files may be selected individually for playback either from the front panel, via an
external trigger, or automatically at a particular GPS position.
When a speech file is selected, it will be played once in each language currently enabled
on the DMP-300. Language selections may be changed from the front panel at any time
by selecting CHOOSE LANGUAGES (this option is not available unless the card contains
speech tracks in more than one language.) The selected languages are retained when the
DMP-300 is powered down, unless default languages have been specified for the card in
CardPrep.
Music Files
Every “Music” file has a title and is a member of a “music list.” Like Speech files, Music
files also have trigger and display attributes when can be set in CardPrep. Music files may
be selected individually for playback either from the front panel, via an external trigger, or
automatically at a particular GPS position.
When a music file is selected, it will play to completion and stop, unless the track has been
designated to “loop continuously” in CardPrep.
Music files are contained within Music Lists. A Music List could be the entire contents of a
CD or playlist, or could be a collection of similar music such as “Light Jazz”. When a
Music List is selected on the DMP-300, the first choice presented for playback is “Play
Whole List”, followed by each individual music track.
Memory Cards
The DMP-300 is supplied with a CompactFlash™ memory card which will hold
approximately one hour of CD-quality audio for every 64 MB of capacity. These cards are
widely used in portable devices such as PDAs and digital cameras, and are available
through most computer supply sources. A 4GB (4000MB) card will provide about 64
hours of audio.
Note: ONLY SanDisk brand CompactFlash cards should be used in the DMP-300!
While other brands may appear to work, the DMP-300 may not reliably power up with
these cards. Any error messages similar to “QV Comm Failure” usually indicate an
incompatible CompactFlash card.

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P/N DMP020 V1.8
Display
Turning the knob CCW or CW will scroll left or right through the top-level menu. The top-
level menu consists of (from left to right):
♦“CHOOSE LANGUAGES” (click for language selection menu)
♦(title of SPEECH FILE 1) (click to play)
♦(title of SPEECH FILE 2) (click to play)
♦(etc., for each speech file on the card)
♦“CONTINUOUS MIX” (click to play random from all music tracks)
♦(name of MUSIC LIST 1) (click to select music tracks)
♦(name of MUSIC LIST 2) (click to select music tracks)
♦(etc., for each music list on the card)
Pressing the knob when the name of a Music List is displayed will drop down into that list
and display the name of each music file. The first and last entry in every Music List is the
choice: “RETURN TO MENU”. Clicking either will return you to the top-level menu
described above.
Pressing the knob when “CHOOSE LANGUAGES” is displayed will bring up the language
selection menu. The language choices displayed in this menu will be whatever languages
are contained in the Speech files on the card. Pressing the knob when each language is
displayed will toggle between <ON> and <OFF>. As for music lists, the first and last
entries are the choice: “RETURN TO MENU”.
Note that the default languages enabled can be set in CardPrep. If no default languages
are selected in CardPrep, the language selection will be whatever was in effect when the
unit was last turned off.
Front Panel Operations
The DMP-300 uses only a single rotary knob with a push-button action for all front panel
functions.
TO S L CT LANGUAG S:
Rotate the knob fully CCW until “CHOOSE LANGUAGES” is displayed. If
“RETURN TO MENU” is displayed at the most CCW position, push the knob and
then rotate fully CCW.
Push the knob to enter the language selection menu.
Rotate the knob to scroll through the list of languages found in the memory card.
Push the knob to toggle selection of the displayed language.
When finished, rotate the knob fully CW or fully CCW until “END OF LIST –
RETURN TO MENU” is displayed, and push the knob to return to the main menu.

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P/N DMP020 V1.8
TO PLAY A SP CH FIL :
Rotate the knob CW or CCW until the title of the desired file is displayed. If
“RETURN TO MENU” is displayed at either position, push the knob and then
rotate fully CW or CCW.
Push the knob to begin playback. The file will be played once for each language
enabled, if the file exists in those languages.
The display indicates that playback is in progress. This display can either be
elapsed playback time, or can be cycling user prompts. Please see the DMP-300
Installation Manual for more information.
When playback is complete, the audio stops and the display points to the NEXT
speech file, as if the knob had been turned CW once.
TO PLAY A MUSIC FIL :
Rotate the knob CW or CCW until the name of the desired music list is displayed.
If “RETURN TO MENU” is displayed at either end, push the knob and then rotate
CW or CCW to select.
Push the knob to select the music list. Then rotate the knob to select either
“PLAY WHOLE LIST” or the desired music track. Push the knob to begin
playback. The display can either be elapsed playback time, or can be cycling user
prompts. Please see the DMP-300 Installation Manual for more information.
Instead of explicitly choosing a music list and music track, you can select
“CONTINUOUS MIX” at the top-level menu. This will play a continuous random
selection of all music tracks on the card.
TO PAUS PLAYBACK:
Press the knob. This will put the playback into “PAUSED” mode.
To resume playback, press the knob again.
TO CANC L PLAYBACK :
Press and hold the knob for at least three seconds.
TO CHANG VOLUM L V L:
Push and turn the knob in either direction. The volume can be adjusted even if no
track is playing. When adjusting the volume, the display will temporarily display:
“Volume: XX” where “XX” is a number between 1 (min volume) and 100 (max
volume).

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P/N DMP020 V1.8
TO CHANG S L CTIONS WHIL PLAYING:
Simply make your new track selection and push the knob (note that if the knob is
not turned for four seconds while you are selecting the new track, the display will
revert to the “PLAYING” screen). The currently-playing audio will fade down and
your new selection will begin. If so configured in CardPrep, the original track will
resume when the new track has finished.
xternal Operations
In addition to the front panel controls, the DMP-300 provides several means of remotely
controlling the audio selection and playback.
Track Selection by GPS Position
The DMP-300 can receive position data from a variety of panel-mount GPS receivers via
an RS-232 or RS-422 serial data link. If a GPS is connected to the DMP-300, then either
speech or music may be triggered automatically when the aircraft is within a specified
distance of a certain latitude and longitude (lat/lon). The desired distance and lat/lon may
be optionally attached to each speech file, music list or music track via the CardPrep
software.
When a track has been triggered by GPS position, the front panel behaves exactly as if
the track had been selected manually. The display shows the track currently playing, and
playback may be paused or cancelled in the normal manner.
If a speech file has been triggered by GPS, it will play once for each language currently
enabled.
Track Selection by xternal Trigger
The DMP-300 provides seven configurable discrete inputs for controlling audio playback
via external switches or sensors. Refer to documentation specific to your installation for
the exact function of each of the external triggers.
Typical applications for external triggering would be aircraft signals such as the “fasten
seat belt” light, or dedicated pushbuttons for certain types of briefing announcements or
music. In CardPrep, these seven triggers can each be assigned to a speech or music
track, an entire music list, or the “CONTINUOUS MIX” selection.
CardPrep also allows the selection of “Jog Mode”. If this mode is enabled, trigger inputs 6
and 7 do not function as triggers, but are used instead to step forward or back through a
speech or music list. See the complete description of Jog Mode on page 10.
Remote PAUS /PLAY Button
The DMP-300 provides an input which can be used to parallel the pushbutton function of
the front panel knob. An external pushbutton connected to this input will perform the same
function as pushing the front panel knob.

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P/N DMP020 V1.8
If a track is playing, pushing the remote button will cause playback to pause. Pushing
again will cause playback to resume.
The external pushbutton works in parallel with the front panel knob: playback may be
paused with one and resumed with the other.
If no track is playing, you can turn the front panel knob until a desired track is displayed.
Then, at some later point, you can push the external button to select the displayed track
and to start playback.
The only difference between the external pushbutton and the front panel pushbutton is
that holding the external button down will not cancel playback. Holding the external button
has no effect.
Jog Mode: Track Select and Volume Control With xternal Switches
Track Select
“Jog Mode” causes the Trigger 6 and Trigger 7 inputs to be used instead to step forward
or back through the DMP-300 menus and lists. When Jog Mode is enabled in CardPrep,
it is active whenever the resulting memory card is used. Inserting a card which does not
have Jog Mode enabled will cause Triggers 6 and 7 to function as normal remote trigger
inputs.
Jog Mode simulates a knob turn, followed by a button press. Each activation of Trigger 6
causes a counterclockwise (left) turn of the knob, while each activation of Trigger 7 causes
a clockwise (right) turn. If no more activations of either Trigger 6 or 7 occur within five
seconds, an automatic “button press” then occurs. Note that the “knob turn” and “button
press” occur in software – the physical knob does not actually move, and no operator
action is required.
If a music track is playing, for example, external switches tied to Triggers 6 and 7 will
cause the display to step backward and forward through the current list. When the desired
track is displayed for one second with no further inputs from either switch, the current track
will fade out and the newly-displayed track will start playing.
If the original track had been part of a “Play Whole List” selection, then the list will continue
to play after the newly-jogged track is done. The Jog inputs can thus be used to skip
forward and backward through a list and the list will continue to play from that point (if
“Play Whole List“ had originally been selected). Otherwise, the jog input will be treated
just a like a physical knob turn and button-press – the new track will be selected, and
playback will stop upon its completion.
Note that no action is taken if the currently-playing track is displayed when the trigger
inputs stop. This way, if you start stepping through the list and suddenly decide that you
really don’t want to interrupt the current track with a new track, simply step the display to
the current track (lower line says “ = =< PLAYING>= = “). After five seconds, the jog mode
simply cancels itself and no action is taken.
One final note: to prevent confusion, the “Choose Languages” menu will not be selected if
that position is reached by using Jog Mode.

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P/N DMP020 V1.8
Volume Control
When Jog Mode is enabled on a card, Triggers 1 and 2 are also redefined to control the
volume on the DMP-300. Each activation of Trigger 1 simulates a push-and-turn
counterclockwise, i.e. a decrement of volume. In a similar way, each activation of Trigger
2 simulates an increment of volume. Volume may also be controlled normally via the front
panel knob.
Creating MP3 Files
CardPrep allows you to prepare existing MP3 audio files, but it does not provide facilities
to create them. There are literally hundreds of applications available which allow you to
convert audio CDs, tapes, or even phonograph records into MP3 files. Many also record
from your computer’s microphone directly into MP3, allowing you to generate your own
speech files. Most of these applications are either free or are very reasonably priced.
Some of the more popular MP3 packages are:
♦MusicMatch Jukebox www.musicmatch.com
♦Real Jukebox www.real.com
♦WinAmp www.winamp.com
♦iTunes www.itunes.com
These are full-featured applications which are mainly geared to managing a collection of
MP3 files on your computer.
Most MP3 applications also allow you to create “playlists”, or lists of MP3 files from your
collection. CardPrep can import these playlists directly.
A rather overwhelming list of available CD-to-MP3 software can be found at
www.dailymp3.com/cdrippers.html.
Please observe and respect all copyright restrictions on pre-recorded materials such as
commercial audio CDs.

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P/N DMP020 V1.8
Preparing a Memory Card with CardPrep
Installing DMP-300 CardPrep
The DMP-300 CardPrep software may be distributed on either the CompactFlash™ card
included with the DMP-300, on a CD-ROM or downloaded from the Avionics Innovations
website at www.avionicsinnovations.com.
To install the software, simply run SETUP.EXE and follow the prompts.
Running CardPrep
CardPrep displays a simple menu bar across the top, and five different selection tabs.
Click on each tab to bring up the associated section.
To add Speech Files:
1. Click on the small box under (1), type the display title of the speech file, and press
Add. Repeat for all remaining speech files.
2. Click on the small box under (2), type the first language to be displayed, and
press Add. Repeat for all remaining languages.

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P/N DMP020 V1.8
3. Click on a title in the large box under (1), then click on a language in the large box
under (2). Next, click on the box under (3) and either type in the path or click
Browse to identify the MP3 file which corresponds to the selected title and
language. Repeat this procedure for every title and language combination for
which a track is to be added.
4. Click on the up and down arrows next to each box to move a highlighted
selection within the box. This allows you to control the order in which speech
tracks or languages are displayed on the DMP-300.
To add Music Files:
Music files may be added either individually, like speech files, or in groups. You can add
all the MP3 files in a particular folder, or you can add MP3 files contained in a playlist.
Playlists are created using an MP3 manager such as iTunes, WinAmp or MusicMatch.
Cardprep can read playlists that have been saved (exported) as either “.txt” or as “.m3u”
files.
Adding Music Files Individually
If you are adding a small number of files, or if the files are scattered in different locations,
follow these steps to add each file individually:

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P/N DMP020 V1.8
1. Click on the empty box under (1), type the name of the desired Music List, and
press Add. Repeat for all remaining Music Lists.
2. Click on the empty box under (2), type the first music track to be displayed, and
press Add. Repeat for all remaining music tracks.
3. Click on a Music List in the large box under (1), then click on a Music Track in the
large box under (2). Next, click on the empty box under (3) and either type in the
path or click Browse to identify the MP3 file which corresponds to the selected
Music Title and Music List. Repeat this procedure for every title and list
combination for which a track is to be added.
4. Click on the up and down arrows next to each box to move a highlighted
selection within the box. This allows you to control the order in which music
tracks or music lists are displayed on the DMP300.
Note 1: Use the Edit button to change the text for a selected music list or music track.
Note 2: CardPrep will not allow two Music Lists with the same name, or two Music Tracks with the
same name in the same Music List. In these cases, CardPrep will automatically insert two digits before
the name to avoid duplicates.
Adding a Folder of Music Files
If all your desired music files are organized by folder, it may be much more convenient to
import an entire folder per music list. Click on Add Folder… and CardPrep will use the
folder name as the name of the newly created Music List, and will add the contents of the
folder as Music Tracks. Use the Edit buttons to fix up the List or Track names as needed.
If you have imported CDs into an MP3 manager such as iTunes or WinAmp, you may find
Add Folder to be a convenient way to include an entire CD onto the DMP300 memory
card. Simply Browse to the root folder of your music library (C:\My Documents\My
Music\iTunes\iTunes Music, for example) and navigate to the folder containing the entire
CD.

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P/N DMP020 V1.8
Adding an Exported Playlist of Music Files
Most MP3 manager applications allow you to create and manage Playlists. A Playlist is
simply a list of MP3 tracks that you would like to group together. You could create a
separate playlist for each CD in your collection (“White Album”, for example), or you can
create a playlist with tracks from many different sources (“Night-Flying Music”, for
example).
MP3 managers such as WinAmp and MusicMatch save their playlists in either “.txt” or
“.m3u” format, both of which can be read directly by CardPrep. iTunes playlists are
embedded in the iTunes library and cannot be read directly by CardPrep. iTunes users
must first export their playlists to “.txt” so the playlists can be read by CardPrep. (In
iTunes, right-click the playlist, select “Export Song List…”, and change the “Save as type:”
box to “Text files”.)

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P/N DMP020 V1.8
To Select Triggers or Attributes:
The “Triggers and Attributes” tab allows you to select either Speech or Music tracks, and
then to specify the following information:
♦ Discrete Triggers
Click on the check box next to any available discrete trigger to associate that track
with the corresponding trigger. More than one trigger may be assigned to a single
track. Clicking on “View” will display the track which has been associated with that
trigger. If the corresponding audio track is later deleted, the trigger will also be
deleted.
♦ GPS Triggers
Enter the latitude and longitude and desired distance from that lat/lon for which to
trigger the selected track. You may also select “<Continuous Mix>” or “<Play Full
List>” to be triggered.
Select “Trigger First Time Only” to prevent the track from playing each time the GPS
trigger is active (until the next power-up), otherwise select “Trigger Every Time”.
For example, an aerial tour may desire speech tracks to be played at each point of
interest on the outbound flight, but not on the return flight. These waypoints would be

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P/N DMP020 V1.8
selected as “Trigger First Time Only”. On the other hand, the same tour may desire
that a “falling water” soundtrack be played whenever the flight approaches a waterfall,
so this waypoint would be selected as “Trigger Every Time”.
See “Notes on GPS Triggering” on page 22 for detailed information.
Be sure to click on “Apply” when entering or changing any GPS trigger data.
♦ Endless Looping
This attribute is only available for music tracks. When set, the selected music track
will repeat endlessly when it is played either via a trigger or by an explicit selection
from the front panel. The track will not loop if it has been selected via either
“CONTINUOUS MIX” or via “PLAY WHOLE LIST”.
♦ Jog Mode
If enabled, Triggers 6 and 7 are used to simulate a knob turn followed by a button
press. This allows stepping forward and backward through the track lists. Also,
Triggers 1 and 2 are used to control the volume level. See page 10 for details.
♦ Normal vs. LOUD Volume
Any track can be played at either the currently-set volume level or at a pre-determined
“LOUD” setting. This allows background music to play at a quiet volume setting, while
important safety messages are played at a higher level. The actual volume level of
the LOUD setting is selected in Setup Mode. Please refer to the “DMP-300
Installation Guide”, AI document number DMP010, for information on entering Setup
Mode and changing this setting. Note that the internal chime sound is always played
at the LOUD volume level.
♦ Resume or Cancel if Interrupted
This setting determines the behavior of a currently playing track which is interrupted
by another track which then finishes. If set to “Resume”, the original track will rewind
approximately 3 seconds and then resume playback. If set to “Cancel”, the original
track is simply cancelled when the new track begins. By default, Speech tracks are
set to “Resume” while Music tracks are set to “Cancel”.
♦ Play Automatically at Power-up or When Idle
This attribute can be attached to either a speech or music track, an entire music list, or
the “CONTINUOUS MIX” selection. Only one selection may be given this attribute.
The selection will begin to play on power-up immediately after the opening screen and
any custom titles are displayed. In addition, the selection will play any time the DMP-
300 is idle after having played any audio tracks. Note that if more than one interrupt
has occurred, the power-up track will be re-selected, and will not resume from where
it was interrupted but instead will restart at the beginning.
For a full explanation of how tracks are interrupted and restored, see “Notes on
Interrupting and Restoring Audio Tracks” on page 23.

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P/N DMP020 V1.8
To Select Setup Items:
♦ Default Languages Enabled
Select and highlight one or more languages to be enabled on power up. Note that
this screen is potentially confusing: the desired language(s) must be highlighted to be
selected. If none are highlighted, the list simply displays the languages on the card.
♦ Custom Card Titles
Up to two lines of 16 characters each can be displayed on the DMP-300 after the
initial screen on power up. This can be used to identify the card, to greet the operator,
to provide special instructions, etc.
♦ Chiming Between Speech Tracks
If a chime (either internal or external) is enabled, this setting controls whether the
chime sounds between the playing of each language of a speech track, or just once
(before the first language).

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P/N DMP020 V1.8
♦ Selecting Internal or External Chime
The DMP-300 may be interfaced to an external cabin chime or tone generator. A
chime will be sounded whenever a speech track is selected or triggered (selecting or
triggering a music track will not sound a chime.) When sounding an external chime,
the DMP-300 will pause for several seconds before starting to play the track, to allow
the chime to finish. The exact length of this pause can be configured in Setup Mode.
Please refer to the “DMP-300 Installation Guide”, AI document number DMP010, for
information on entering Setup Mode and changing this setting.
You can also choose an MP3 file to be played as the chime sound. Select Internal
Chime and then click Browse to select the MP3 file to be played. Several chime
sounds are provided in the /Chimes directory under the main CardPrep directory.
Note that when internal chime is selected, the DMP-300 does not activate the external
chime signal. This allows you to switch between cards using internal or external
chimes without having to physically disable the external chime.
To defeat chiming completely, select Disable chime. There will be no delay when
playing a speech track and the external chime signal will not be activated.
♦ Changing System Prompts
Most of the text displayed by the DMP-300 in normal operation is actually stored on the
memory card and can be changed via CardPrep. This was intended to allow for
translation of the system prompts into languages other than English. Clicking on the
“System Text...” button brings up the following screen:

DMP-300 USERS GUIDE PAGE 20 OF 24
P/N DMP020 V1.8
To make changes to the text, simply click in a box on the right side, type in your new text
and click “Save”. Use caution (and common sense) when making changes! Always refer
to the original text in the left column to be sure you are not changing the intent of the text.
As with all the other configuration settings in this section, any changes made here will only
apply to this card. Inserting a different card will cause the unit to reload the configuration
and clear the changes.