Q561-DVB IP Audio Encoder

Q561-DVB IP Audio Encoder
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The Qbit Q561-DVB IP Audio Decoder sets standards for high quality audio encoding.
Based on the proven Qbit platform, it provides highest signal quality, best build quality and service without compromise.
Up to 8 digital stereo audio channels (or 4 analog channels) can be encoded simultaneously. They can then be put out as MPEG2 compliant DVB transport streams via IP or ASI interface.
Each channel can be configured individually (e. g. compression algorithm, bit rate, stereo mode, etc.).
If more than 8 stereo channels are required, it is possible to cascade up to 4 Q561-DVB in order to create a transport stream with up to 32 audio channels.
The transmission of ancillary data and switching contact information (GPIO) is possible with the default interfaces.


Audio Input:

Digital: AES/EBU, electrical, XLR (IEC958)
Analogue: XLR, electronically balanced, level range 0 .. +18 dBu (adjustable in 0.5 dB steps)
A/D converter: 24 bits

Audio Encoding:

MPEG-1/-2 Layer II (ISO/IEC 11172-3, 13818-3)
MPEG-2 AAC (ISO/IEC 13818-7)
All allowed bitrates as defined in the respective standards
Sampling Rate:
32 kHz, 48 kHz

Audio Frequency Range (analogue):

20 Hz .. 20 kHz, ± 0.3 dB


Ancillary Data:

Private stream inside the MPEG-2 transport stream, or embedded in MPEG audio data
Transparent, UECP, other formats upon request
RS.232 (Sub-D25 pin connector,1200 .. 38400 bits/sec) via optional SUB-D 9breakout cable or via IP interface

Transport Protocols:

Over IP:
  • Streaming of elementary streams compliant to RFC3550/3551, RFC3016, RFC3640, EBU-TECH 3326
  • Output of DVB/MPEG-2 transport streams including service information according to ETSI EN 300 468, compliant to Pro-MPEG Code of Practice #3 release 2.
  • Forward Error Correction (FEC) according to Pro-MPEG Code of Practice #3 release 2 available as an option.
Over ASI:
  • Output of DVB/MPEG-2 transport streams including service information according to ETSI EN 300 468

Network Interfaces:

  • 2 separate Ethernet interfaces (IEEE 802.3, RJ45) for data (IP streaming) and control (web control, SNMP, ancillary data), optical interfaces (1000 Base-X, 100 Base-FX) available
  • DVB-ASI (EN 50083-9)

  • 4 outputs (relay contacts)
  • 8 inputs (photo couplers, 5 .. 24V)

System Configuration, Control and Monitoring:
  • via Ethernet by accessing the on-system HTTP web server with any internet browser
  • via Ethernet using SNMP
  • via the front-panel keyboard and display


Supply voltage: 100 .. 240V +- 10%, 50 .. 60Hz
Optional: -48V DC
Integrated switching power supply

Power Supply Redundancy Option:
The optional power supply redundancy has the following features:
  • Measurement of power supply voltages, values are provided via web GUI or SNMP
  • SNMP trap generation on power supply fail
  • Activation of switching contacts on power supply
  • Automatic switch-over in case of power supply fail


19" rack mount cabinet, 1U (1RU)
483 mm x 360 mm x 44 mm
Weight: 3,5 kg


Working temp. 0°C to 45°C
Storage temp. –20°C to 70°C
Humidity 20% to 90% none condensing

Ordering Options for Audio Inputs / Outputs:

  • up to 8 stereo channels (digital AES/EBU)
  • up to 4 stereo channels (analogue and digital AES/EBU)


Q561-DVB IP Audio Encoder (Datasheet., PDF, English)

Q561-DVB IP Audio Encoder (Datenblatt, PDF, Deutsch)

Q561-DVB IP Audio Encoder

This Product was added to our catalogue on Tuesday 27 May, 2014.