1. IP Audio Interface
PRS-1AIP1 (HW 2.0)
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2. What is an IP Audio Interface
The Solution for digital audio transport via LAN / WAN
between PA systems or audio connections to remote locations.
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3. What is an IP Audio Interface
The Solution for digital audio transport via LAN / WAN
between PA systems or audio connections to remote locations.
LAN/WAN 1 8
RS232
RS485
Audio CI CO
RS232
RS485
Audio 1 8 CO CI
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4. Why an IP Audio interface?
The need for real-time audio transport over large distance
Cost effective solution for audio over IP
Easy installable system components
Alternative for CobraNet & Omneo.
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5. Features: EN 54-16 certified IP solution (HW 2.0)
One type number for transmitting and receiving
Configure via standard web-browser
Analog audio inputs and outputs
Built-in configurable audio delay
Control inputs and outputs
Dual Ethernet connection
Dual PSU connection
Dedicated Fault contact
SNMP support.
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6. Supervision Network connection Data stream
Dynamic or condenser microphone
Audio path (20kHz Pilot tone detection and generation)
Control inputs
Main and backup power supply
Internal temperature.
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7. Supervision Faults are visible on the status screen
Faults trigger the Fault relay
Faults send out an SNMP message.
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8. 2 Electr. balanced output
Audio inputs:
2 Electr. balanced input
Channel 1 Mic./Line
Channel 2 Line (with pilot tone detection)
Audio outputs:
2 Electr. balanced output
Channel 1, line out
Channel 2, line out (with pilot tone generation).
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9. 8 supervised control inputs
Control outputs:
8 control outputs
1 dedicated Fault output.
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10. Audio compression supported formats:
MPEG1-Layer kHz 2 channel
MPEG1-Layer kHz 2 channel (MP3) (Var. bit rate)
µ-Law, A-law (G.711) 8kHz - 32kHz, 8 bit mono (from the telecom industry)
PCM, 8 – 32 kHz 16 bit uncompressed audio mono
Audio delay
MPEG (MP3) : min. 150mS, typ. 300mS
µ -Law, A-law : Very low
PCM : typ mS.
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11. Audio compression supported formats:
MPEG1-Layer kHz 2 channel
MPEG1-Layer kHz 2 channel (MP3) (Var. bit rate)
µ-Law, A-law (G.711) 8kHz - 32kHz, 8 bit mono (from the telecom industry)
PCM, 8 – 32 kHz 16 bit uncompressed audio mono
Full duplex support
PCM
µ -Law, A-law
For 1 to 1 connections only!!
Half duplex
All formats
For 1 to 1 connections
For 1 to many connections. or
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12. Unicasting, Multicasting, Broadcasting, Re-Broadcasting
Network features:
Unicasting : single data stream to a single predefined receiver
Multiple unicasting : multiple data streams to multiple receivers
Broadcasting : single data stream to all receivers in the network
Multicasting : receiver select the data stream
Re-Broadcasting : receiving a data stream and sending it to
receivers in the network
Unicasting, Multicasting, Broadcasting, Re-Broadcasting
Unicasting : e.g
Multiple unicast : e.g
Broadcasting : e.g
Multicasting : e.g (to )
Re-broadcasting : receive on e.g
transmit on nn.
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13. Network features
Unicasting
LAN/WAN
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14. Network features
Unicasting
Multiple unicasting
LAN/WAN
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15. Network features Unicasting Multiple unicasting Multicasting LAN/WAN
No tks
LAN/WAN
No tks
No tks
No tks
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16. Network features Unicasting Multiple unicasting Multicasting
Broadcasting
LAN/WAN
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17. Network features Internet Unicasting Multiple unicasting Multicasting
Broadcasting
Re-Broadcasting.
LAN/WAN
Re-Broadcasting
Internet
Router
Router
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18. Pilot tone detection and generation
Pilot tone is detected at the transmitter input (AI2)
Pilot tone status is transferred to the receiver
New pilot tone is generated at the receiver output (AO2)
LAN/WAN
Audio only +
20kHz pilot tone status 0/1
Audio +
20kHz pilot tone
Audio +
20kHz pilot tone.
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19. Connections
Supervised Control inputs
Control outputs.
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20. Connections
Control inputs.
CI1
CI2
CI3
CI4
CI5
CI7
CI6
CI8
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21. Connections
Supervised Control inputs.
10 k
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22. Connections Control outputs. CO1 CO2 CO3 CO4 CO5 CO6 CO7 CO8 Fault out
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23. Connections
Audio inputs
Audio outputs.
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24. Connections Audio inputs. Line input (20kHz detection)
Mic. / Line input
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25. Connections Audio outputs. Line output 2 (20 kHz out) Line output 1.
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26. Connections
RS232.
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27. Connections
Ethernet connection.
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28. Connections Ethernet connection
Both Ethernet connection have the same IP address
They cannot be connected to the same Ethernet network
Use 2 separate Ethernet networks for redundancy.
Main
Ethernet connection
Backup
Ethernet connection.
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29. Connections Mains Pwr connection Backup Pwr connection RS485.
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30. Connections Mains Pwr connection Backup Pwr connection RS485. RS485
Main Pwr
Backup Pwr
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31. Contact mapping LAN/WAN CO_1 CO_1 CI_1 CO_2 CO2 CI_3 CO_1 CI_1 CO_2
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32. Audio delay Audio delay up to 4 Seconds
LAN/WAN
Audio delay up to 4 Seconds
(Depending on the audio compression format)
No delay
2 Sec. delay
4 Sec. delay 2 4 6
t (sec.)
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33. Easy configuration, control and monitoring via web-pages
Plena & IP
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34. CobraNet IP Audio interface Routing over LAN only Unicast & multicast
Connect to Praesideo system bus
4 Audio in / 4 audio out per unit
Audio only
Uncompressed audio
No audio delay
IP Audio interface
Routing over LAN/WAN & Internet
Unicast, multicast & broadcast
Analog audio connection
1 or 2 audio channels out per unit
Audio + contacts + RS232/485
Compressed and uncompressed audio
Configurable audio delay.
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35. NCO NCO MCI / BAM MCI / BAM CST CST CIN CIN CRF CSI - Configuration
HP Switch
HP Switch CD CD
NCO
NCO
MCI / BAM
MCI / BAM
Z11
Z11
CST
CST
Z12
Z12
Z13
Z13
CIN
CIN
CRF
CSI
- Configuration
- Logging
- CobraNet config
- PC CST
RCS
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36. LAN/WAN NCO NCO MCI / BAM MCI / BAM CST CST CIN CIN CRF CSI
HP Switch
HP Switch
LAN/WAN CD CD
NCO
NCO
MCI / BAM
MCI / BAM
Z11
Z11
CST
CST
Z12
Z12
Z13
Z13
CIN
CIN
CRF
CSI
- Configuration
- Logging
- CobraNet config
- PC CST
RCS
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37. CobraNet applications: IP Audio interface applications:
Connecting Praesideo systems in a LAN
No, audible, audio delay.
Adjacent zones between multiple systems no problem
Connecting to third party CobraNet equipment
Amplifiers, music sources etc.
IP Audio interface applications:
Connecting PA system via LAN, WAN, Internet
Connecting remote Praesideo systems
Connecting remote amplifiers
Connecting remote call station for e.g. PC Call Station.
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38. Example 1 LAN/WAN Audio routing Zone selection Fault detection
PC Call Station CO CI
Audio
Audio routing
Zone selection
Fault detection
PC Call station.
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39. Example 2 LAN/WAN Audio routing EOL detection Multiple locations. COCI
Audio
Audio routing
EOL detection
Multiple locations.
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40. Example 3 LAN/WAN Audio routing EOL detection Zone selection ZoneCO CI
Audio CI CO
Audio
Zone
Audio routing
EOL detection
Zone selection
Up to 8 zones.
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41. Example 4 LAN/WAN Audio routing Fault detection. CO CI Audio Audio
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42. Example 5 LAN/WAN Audio routing Call multiple BGM Fault detection. COCI
Audio CI CO
Audio
Audio routing
Call
multiple BGM
Fault detection.
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43. Example 6 LAN/WAN Remote call station PC Call station. CO Audio CI
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