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Applications and Features
A Flexible and Reliable Tool
to Assess a Large Variety
of Systems Under Test
• End-to-end voice quality testing
of 3G, VoIP, VoDSL, VoATM,
ISDN, GSM, POTS, based on
real world speech signals
• Measure VAD behaviour, echo
cancellers and signal enhancers
with any speech signal
• End-to-end wide band audio
quality testing of MP3, AAC,
AC3 and Microsoft
™
Windows
Media
™
• Interactive or automated
unattended measurements
• Immediate overview of the QoS
of your network based on stan-
dardized metrics
• Plenty of detailed views and
graphs provided for further fault
analysis, incl. voice or wide
band audio quality, echo, delay,
jitter, VAD behaviour and call
timing
• Stress your network in order
to observe the effects on the
transmission quality (bulk call
generation)
• Monitor the QoS of any corpo-
rate, public or long distance
network
• Remote control a single or
numerous OPERA
™
analyzers via
an IP connection.
Share a pool of OPERA
™
systems in your test lab with
other developers. Conveniently
control the pool from your
office PC
• Freely combine various inter-
face types in every measure-
ment (e.g. VoIP calls from POTS
to a VoIP terminal)
• Include the acoustical path in
the measurement using a head
and torso simulator (HATS)
• Monitor broadcast networks
on-line
Why
OPERA
sets the
Standards:
• Objective perceptual
evaluation of compressed
voice/audio signals modelling
recognized listening test
procedures, based on natural
speech/music
• Original reference imple-
mentations from the co-
developers and originators
of the ITU standards,
incl. KPN, BT, OPTICOM
• Direct relation of measured
QoS to customer's satisfaction
• Efficient diagnostic tool
for next generations hard-
ware/networks design
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