The document describes an MCA multichannel audio system for use in public transportation. The key points are: - The MCA system uses a client-server model to provide digital audio to up to 120 clients via 8 audio channels, which can be expanded to 32 channels across multiple servers. - Audio content is stored on an SD card with up to 32GB capacity and over 8,000 songs. The system can pause playback across all channels to broadcast announcements from a microphone. - The MCA system can be integrated with a telematics server to provide location-based audio information to passengers on sightseeing buses and trains based on GPS position. - Components are designed for robustness in public transportation environments,

2. MCA – Multichannel Audio
• MCA – Multichannel Audio system with digital
audio quality
• Client-Server entertainment system
• Audio content is stored on SD card with
capacity up to 32 GB: more than 8.000 songs
(no need to use CD/MP3/USB player
• 8 digital audio channels available (4 can be
used for external Audio source connection)
• Up to 32 channels available (with 4 servers)
• Up to 120 clients
• ANNOUNCEMENT – when driver´s or guide´s
microphone is switched ON, the playback on
all channels is paused and driver / guide
message is broadcasted. After switching OFF
the microphone playback resumes on all
channels automatically

3. Sightseeing BUS
• MCA system can be expanded to sightseeing bus system in connection
with Telematics server
• Information content played based on GPS position
• Multichannel audio and one video signal playback
• Thanks to multichannel capability of the MCA server, information can reach
passengers in 32 languages
• Backround music playback while no GPS based information is broadcasted

4. Main components
MCA server MCA splitter
• Dual earphone jack - two parallel 3,5 mm audio jacks, if one is
temporarily blocked with broken earphones connector the passenger
can use the second one
• Audio jack designed for easy and quick removal of broken audio
connector pin
• Components designed for public transportation use = robust
connectors, water-resistant
MCA receiver (client)

5. Basic architecture

6. User friendly PC tool
• PC tool for creating audio content on SD card - MCA or Sightseeing
image
• Easy content management
• Easy route creating including POI settings
• Adding particular video and audio to each POI
MCA editor, creates
the image of SD card
with 8 audio channels
Route editor creates
the route with POI,
with particular audio
and video – this is
played when set
GPS position is
reached

7. SIGHTSEEING TRAIN solution

8. Thanks for your attention
Zuzana Hostinová
Project Manager
zhostinova@molpir.com
+421 902 971 114
www.funtoroeurope.com