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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
On-line real time acquisition and analysis capability (PEAQ and PSQM)
Comprehensive scripting interface
Remote Control via IP
DDLC™ improved timing accuracy (Dynamic Driver Latency Compensation)
Play and record functionality for wide band audio and voice signals
Trigger functionality for targeted analysis of on-line or long duration test signals (PEAQ and
PSQM)
Graphical user interface
Extensive scripting and command line options for automated testing
Printing and graph exporting functionality
Graphical Displays
Time signal displays, zoomable
FFT Spectra displays, zoomable
Excitation and various psychoacoustic parameters, like NMR, Masked Threshold and
Loudness
Audible distortion measurement
Result summary display with MOV, PSQM MOS, PESQ MOS and PEAQ ODG numerical
scores and bar graphs
Delay Jitter vs. Time min/max scores and graph (PESQ)
Echo Return Loss vs. Delay
Feature Description
PESQ Measurement
Description:
Algorithm standard:
Sample rates:
Sound file formats:
Max. duration of measurement signals:
Gain Compensation:
Automated operation:
F O R
T H E
O P E R A ™
Perceptual measurement of speech quality according to
ITU-T rec. P.862. Indicates call clarity. Results can be
directly compared to subjective listening tests. Capable of
handling varying delays and severe distortions as they
occure in VoIP applications.
Based on standard ITU-T rec. P.862
8 kHz and 16 kHz
WAVE-files containing A-law, mu-law, linear PCM (8 or 16
bit)
As defined by WAVE-format
Maximum gain difference = ±60 dB
Supported
2
O B J E C T I V E
P E R C E P T U A L
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