The 7721AD-HD series Audio De-embedders extract embedded audio as specified by SMPTE 299M from a 1.5Gb/s serial HDTV video signal. The companion 7721AE4-HD Audio Embedder facilitates audio multiplexing at the source. The 7721AD-HD is available in 3 different versions.  SMPTE 299M allows for up to four groups (4 channels/group) to be embedded within a serial digital signal. The 7721AD4-HD can de-embed two audio groups onto four unbalanced AES outputs. The 7721AD-A4-HD can de-embed one audio group onto two unbalanced AES outputs and 4 balanced analog audio outputs.

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• Automatic detection of video input format
• Card edge LEDs indicating module status, video presence, selected audio group data is present
• Audio group selection via card edge DIP switches
• 7721AD-A4-HD has independent volume controls for each of the audio channel outputs and supports both HD and SD-SDI signals