Download Print this page

Feature Overview - OPTICOM OPERA ANALYZER Technical Specification

Objective perceptual analyzer

Advertisement

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

Feature Overview

Voice Quality Measurement
PESQ, perceptual evaluation of speech quality according to ITU-T rec. P.862 [2001].
Combines PSQM with PAMS, optimized for VoIP and hybrid end-to-end applications
PSQM, perceptual speech quality measure according to ITU-T rec. P.861 [1996]
PSQM+, advanced perceptual speech quality measure according to ITU-T COM 12-20
[1998]
PSQM/IP, perceptual speech quality measure according to ITU-T rec. P.861 [1996], incl.
advanced delay compensation for end-to-end measurements, developed by OPTICOM
Echo measurement based on real speech, Echo Return Loss ERLmom, ERLpeak, ERL vs. delay
One way delay measurement, with PESQ also delay jitter vs.time
Measurement under double talk conditions
One way and two way measurements
Bulk call generation
H.323 interface functionality using Windows NetMeeting™ and audio interfaces
Front-end clipping FEC measurement
Hold-over time HOT measurement
Background noise measurement
Utterances detection
Delay histogram
1
Signal-to-noise SNR measurement of speech and silence portions of a test signal
User definable state machine support for E1 MFC-R2, E1 CAS-R2, T1 CAS
Official ITU voice samples for testing and conformance verification
Audio Quality Measurement
PEAQ, perceptual evaluation of audio quality according to ITU-R rec. BS.1387 [1999], Basic
and Advanced Model
Result logging functionality, including user definable log intervals and quality score threshold
Official ITU audio samples for testing and conformance verification
Common Functionality
Advanced delay compensation for end-to-end measurements, suitable for constant and
variable delays (VoIP), developed by OPTICOM
Delay measurement with real speech/music. Results in samples as well as ms
Attenuation measured in dB
Available Q4/2001
1
F O R
(PESQ)
1
(PESQ)
1
(PESQ)
1
(PESQ)
1
(PESQ)
T H E
O P E R A ™
O B J E C T I V E
1
P E R C E P T U A L

Advertisement

loading

This manual is also suitable for:

OperaOpr-1xx-xxx-p