Spectra2|Video Quality Measurement
Spectra2|Video Quality Measurement (VQM) is a single-user software package for Windows that uses a standard Network Interface Card (NIC) to monitor RTP Video Streams. With support for up to four concurrent video streams, users can diagnose a range of video-related problems that include presence, accuracy, delivery, and objective quality metrics.

Forward Error Correction
Forward Error Correction (FEC) is the key for a successful user experience in turbulent IPTV networks. FEC integration of leading edge and user-selectable algorithms allows Spectra2|VQM to report both pre- and post-correction statistics in real-time.

Capture and View
Spectra2|VQM captures every single video packet for extensive scrutiny. Users can also view the actual video streams before and after error correction.

Statistics and Reports
Spectra2|VQM tracks selected metrics graphically in real time. Users can export statistics to file or use the integrated online analysis tools to browse historical data.

Perceptual Video Quality
Perceptual metrics for video quality are integrated directly into Spectra2|VQM, and are based on the perceived quality as experienced visually by the user. Non-intrusive metrics work in real time without reference signals, allowing instantaneous quality measurements.

Video Standards Support

• RTP – IETF RFC 3550. A Transport Protocol for Real-Time Applications. July 2003.
• MPEG-Transport Streams - H.222.0/IEC13818. Information technology - Generic coding of moving pictures and associated audio information. February 2000.
• Codec – Video for Windows (.avi), Real Media (.rm), Windows Media Video (.wmv, .asf), QuickTime (.mov), MPEG-1 (.mpeg, .mpg), MPEG-2 (.mpg, .m2v), MPEG-4 (.mp4)

Spectra2|VQM Monitoring Metrics

RTP Transport Metrics

In addition to the standard RTP statistics, these metrics are collected for all IPTV streams.



These statistics are collected on each video stream for pre- and post-FEC processing.