User manual OPTICOM OPERA BROCHURE 1

[. . . ] Viele neue Technologien des Informationszeitalters sind dadurch erst möglich geworden: Handys, Voice-over-IP, On the other side, the economic benefit of lowering data rates further to a minimum is controversy to clear sound. In spite of , , all digital technology", sound quality and speech intelligibility have become issues again, and thus of much more impact than in those good old , , analog" days! [. . . ] Ein für die Praxis entscheidender Vorteil des OPERA Meßprinzips ist die Tatsache, daß Messungen auf normalen Sprach- oder Musiksequenzen beruhen, also auch bei laufendem Programm vorgenommen werden können. Dies gestattet nicht nur eine Qualitätsüberwachung , , on-line", sondern auch die Berücksichtigung kultureller und sprachbedingter Artefakte. Objective characterization of human listener's subjective quality impression As a consequence of the novel approach to measure the perceived audio quality instead of signal characteristics, for the first time it is possible to gain an objective quality metrics which truly characterizes the quality of service (, , QoS") of a network. Aufgrund des neuartigen Ansatzes zur Messung der wahrnehmbaren Audioqualität ergibt sich erstmals eine objektivierbare praxisbezogene Aussage über die , , Quality of Service", also den Qualitätsstandard beispielsweise eines Telekommunikationsnetzes. objective ompare Compare the features. Make the difference. Scalability from single stand-alone tester to network-wide distributed systems OPERA's flexible scalability may range from a single stand alone tester up to powerful network-wide setups with distributed systems sharing information over IP. Die flexible Skalierbarkeit des OPERA Systems reicht vom Standalone System bis hin zu ganze Netzwerke umfassende, verteilten Systemen, die über Internet administriert und gesteuert werden. Future-proof open framework concept for advances in measurement algorithms The open framework concept of OPERA will allow to add advanced measurement algorithms as plug-ins in the future as soon as they become available. Das offene OPERA Systemdesign erlaubt die problemlose Einbindung zukünftiger Meßalgorithmen. More Features: · Workstation as well as portable version available · Comes with test samples for standard setups · State-of-the-art Windows NT Architecture · Wizard guided graphical user interface · Easy documentation of measurements by , , copy and paste" of diagrams · Support for standard color printers · · · · Easy ODBC database integration Real time test inputs Automated test scheduling Fully programmable in VBA (Visual Basic for Applications) · · Web based user front end OEM modules for various abstraction levels available (DLLs, ActiveX) Supports both, interactive as well as fully automated, unattended operation OPERA may be used interactively as an analyzer, or will run fully automated according to a predefined schedule. Jedes System unterstützt sowohl den interaktiven, also benutzergesteuerten Meßvorgang, als auch vollautomatische Meßprozeduren. Easy to adapt integrated interfaces for telecom or broadcast audio quality testing OPERA comes fully equipped with high quality, loop start or ISDN telephony interfaces, which are approved for most countries. In the broadcast version, high quality studio A/D, D/A and AES/EBU Das OPERA Meßsystem stellt international zugelassene Telefonieschnittstellen als analoge a/b oder digitale ISDN Version zur Verfügung. Open interface for user defined measurement algorithms User defined measurement algorithms may be integrated upon request. Ebenso lassen sich bei Bedarf anwenderspezifische Meßalgorithmen integrieren. interfaces with all necessary synchronization features are provided. features available · Custom tailored solutions telecom version Features · ITU-T P. 861/PSQM perceptual based measurements of speech quality · PSQM+ perceptual measurements (PSQM improved for GSM) · PSQM/IPTM New! An example application of OPERA in a telephone network environment. A single stand-alone OPERA system runs cyclic quality checks via a loop back connection to ensure the quality-ofservice (QoS) A Stand alone loop measurement with OPERA Paris PABX uncompressed PABX New York compressed Telecommunication Network PABX PABX Further advanced PSQM improved for VoIP measurement · New!Analysis/Measurement System London Berlin PAMS Perceptual · · · · · Echo measurement Delay measurement Call setup time measurement Level measurement Interfaces to loop start (a/b), ISDN lines and wireless A fully automated, distributed system of OPERA units may monitor the quality according to a scheduled order of measurements B Automated distributed System, off-line data exchange Paris PABX New York PABX · · VoIP interfacing Bulk call generation London PABX Telecommunication Network compressed Data exchange off-line over IP Berlin PABX broadcast version A Stand alone testing with OPERA Testing a single audio processing device (e. g. a dial-up codec) with the broadcastMPEG Encoder Features · ITU-R BS. 1387 (PEAQ) perceptual measurement of wide-band audio quality · PEAQ , , Basic" and , , Advanced" version · · · Delay measurement Level measurement Real time measurement Interfaces to file (*. wav), analog XLR balanced (20 bit) and digital AES/EBU version of OPERA. ISDN MPEG Decoder · B On-line monitoring with OPERA On-line network monitoring with OPERA based on a live programme feed. Satellite Radio Programme Studio Receiver QualityQual ity is our business No matter if it's speech quality in telecommunications, audio quality of music and broadcast signals or video quality of TV signals, quality is our business! [. . . ] Daraus resultierend profitieren OPTICOM Entwickler auf den Gebieten der Audiocodierung und der objektiven Qualitätsbewertung von Erfahrungen, die bis in die Anfänge dieser Entwicklungen in den späten 80er Jahren zurückreichen. Neben zahlreichen internationalen Kontakten und Kooperationen mit führenden Forschungszentren spielt OPTICOM auch in den internationalen Standardisierungsgremien eine große Rolle ­ wie beispielsweise beim neuen ITU-R Standard PEAQ. [. . . ]