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Rohde & Schwarz Launches New Decoder to Measure Transport Streams

Rohde & Schwarz will demonstrate a new optional hardware decoder for its R&S DVM family at NAB2007.

The new tool decodes video and audio signals contained in the MPEG-2 transport stream, allowing users to quickly identify the programs and to immediately view and assess their picture quality. It works in SD and HDTV formats. Signals can additionally be tested by means of the buffer analysis function to determine whether they are in accordance with the MPEG standard.

The new option is available for all instrument types of the MPEG-2 measurement platform R&S DVM. With the option, various picture displays can be connected via numerous interfaces, including the HDMI interface.

The R&S DVM400 digital video measurement system already includes a screen for displaying the graphical user interface. With the new decoder, all models of the DVM family additionally feature an on-screen display with an overview of the technical characteristics of the signal. The decoder supports MPEG-2 and H.264 for video signals and all common formats from MPEG-1 layer II to Dolby Digital for audio signals.

The real-time buffer analysis function checks whether video and audio signals have been coded in line with the standard. For this purpose, transport, multiplex and element buffers can be analyzed to ascertain compliance with the MPEG standard. The video buffer verifier model, the leak method, and the hypothetical reference decoder defined in the standard are supported. Since the measurement results are graphically displayed, they can be interpreted quickly and easily.

Rohde & Schwarz will be in booth C2927.