Sigma Electronics Adds to OctaStream Product Line

Oct 2, 2003 12:00 PM, Editors


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Sigma Electronics unveiled its DV5515 latency-control module, an enhancement for the OctaStream™ family of AES digital audio signal management products.

The new DV5515 is a unique digital video-frame synchronizer that integrates with OctaStream modules via Sigma’s OctaBus™. This allows for timing information to be read and compared between up to eight delay modules to realign the timing of HD, SD and AES signals. The DV5515 incorporates memory sufficient to delay high-definition video for up to 10x 25Hz frames (400ms) and in excess of 50 frames at standard-definition rates. The DV5515 also allows the user to frame-synchronize and re-align video frame boundaries across different signal formats.

The OctaStream family also offers the DA5320 Mixer and Subframe router that brings timing, mixing and synchronizing power to eight individual audio channels from four AES input streams; the DA5315 Variable Delay Compensator and DATC Comparator, which sets variable delay up to 10 seconds for each of four independent AES signals over eight channels; the DA5325 Sample-Rate Converter that serves as the audio equivalent of a video-frame synchronizer; and the SG5605 AES and DATC Reference Generator, which provides an AES tone/silence with eight audible channel identifiers.

“Signal latencies have significantly increased with the advent of digital video and audio systems,” commented Nigel Spratling, president of Sigma Electronics. “Every time a signal is compressed, processed or converted in the audio/video chain, a slice of processing time is added to the program material. This ultimately translates into loss of the timing relationships between signals, especially between different formats. The addition of the DV5515 to the OctaStream product family now delivers the power to eliminate these problems and keep the production stream flowing smoothly.”

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