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T E C H N I C A L
S P E C I F I C A T I O N
A N A L Y Z E R
Automatic Delay Compensation:
Static Delay:
Automated operation:
Available Measurement Results:
Additional Features:
PSQM/IP Measurement
Description:
Algorithm standard:
Sample rates:
F O R
T H E
O P E R A ™
±1000 ms
Automatic Delay Compensation ±10 s
Supported
Timesignal,
Spectrum,
Excitation,
Percentage of silent intervals during measurement (Silence),
Percentage of time clipped frames during measurement
(Time Clipped),
Percentage of severely distorted frames during
measurement (Sev. Distorted),
PSQM according to P.861, silence weight = 0.0 (PSQM-
W0),
PSQM according to P.861, silence weight = 0.2 (PSQM-
W2),
PSQM according to P.861, silence weight = 0.4 (PSQM-
W4),
PSQM value of the silent intervals (PSQM-Silence),
Mean Opinion Score (MOS), silence weight = 0.0 (OMOS-
W0),
Mean Opinion Score (MOS), silence weight = 0.2 (OMOS-
W2),
Mean Opinion Score (MOS), silence weight = 0.4 (OMOS-
W4),
Mean Opinion Score (MOS) according to PSQM+
(OMOS+),
Mean Opinion Score (MOS) vs. Time,
Delay between the Reference Signal and the output signal
of the device under test,
Attenuation of the test signal compared to the reference
signal
File-based measurements,
On-line measurements,
Trigger functionality,
Printing and graph exporting functionality,
Includes official ITU voice samples for testing,
Includes PESQ conformance test samples,
Includes PSQM conformance test samples
Same as PSQM and PSQM+. Includes advanced time
alignment algorithm to cope with static and variable
latencies, developed by OPTICOM (Delay Tracking
functionality).
Based on standard ITU-T rec. P.861
8 kHz and 16 kHz
5
O B J E C T I V E
P E R C E P T U A L
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