Why OPERA set the Standards... The OPERA™ Voice/Audio Quality Analyzer represents the latest developments of perceptual measurement techniques as it is not just a test & measurement product but also OPTICOM's development platform for new quality testing algorithms. As OPTICOM is actively engaged in international standardization, you can find the original reference implementations of the standards being used in OPERA's software, which may not be the case for the products of other manufacturers.

Important facts for your purchasing decision...
Objective perceptual evaluation of compressed voice/audio signals based on modeling recognized standard listening test procedures with natural speech/music (ITU-T P.800, ITU-R BS.1116, ITU-R BS.1534)
Original reference implementations from the co-developers
and originators of the ITU standards, incl.
  - original PSQM code of KPN-Research which formed the basis for ITU-T recommendation P.861;
  - original PSQM+ code developed by KPN-Research (unpublished) which formed the basis for ITU-T COM 12-20;
  - original PESQ code of BT/Psytechnics and KPN-Research which formed the basis for the ITU-T P.862, certified by OPTICOM's conformance test certificate;
  - original PEAQ code developed by Fraunhofer, OPTICOM, CRC, CCETT, TU Berlin, T-Systems, IRT and KPN, which represents ITU-R recommendation BS.1387;
Direct relation of measured Quality-of-Service (QoS) to customer’s satisfaction

Efficient diagnostic tool for next generations chip/hardware/
networks design


... and did you know that ... OPTICOM, under sole license of KPN, introduced PSQM in 1996 and has been the sole point of licensing since then;

... OPTICOM developers have been working on and gained experience in perceptual measurement technology since 1987;

... OPTICOM's OEM code, which is available for licensing, can be found today in many state-of-the-art products of well known industry partners!

> More details For more details on the development of Perceptual Measurement refer to our Technology section, or visit:

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[www.peaq.org]

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[www.pesq.org]

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