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C H A P T E R
1 :
I N T R O D U C T I O N
OPERA's flexible scalability may range from a single stand alone tester up to
powerful network-wide setups with distributed systems sharing information over
TCP/IP. OPERA™ may be used interactively as an analyzer, or runs fully
automated according to a predefined schedule.
The open framework concept of OPERA™ allows the addition of advanced
measurement algorithms as plug-ins in the future as soon as they will become
available. In addition, user defined measurement algorithms may be integrated
upon request.
Basically, there are two different versions of OPERA™, a Telecom Version and a
Broadcast Version. Some of the features of the
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ITU-T P.862/PESQ
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ITU-T P.861/PSQM
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PSQM+ (PSQM improved for GSM)
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Echo measurement with real speech
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Delay measurement
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Interfaces to file (*.wav), loop start (a/b), E1/T1, [VoIP, and wireless to
follow]
•
...
Some of the features of the
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ITU-R BS.1387/PEAQ
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Delay measurement
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Real time measurement
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Interfaces to file (*.wav), analog XLR balanced (20 bit) and digital AES/EBU
•
...
All standard measurement algorithms are based on the reference code, which
was used for the standardization, and all algorithms are tested and verified to be
fully conforming to the standards.
OPERA™ is available as a software version, a completely pre-installed portable
system and a completely pre-installed rackmount system. The Workstation
version is not available as a standard product anymore. In addition, we offer
custom tailored and OEM solutions.
Telecom Version
Broadcast Version
are at the time:
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are at the time:
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