Dolby AC-3 in a Broadcast Plant - PBS
Dolby AC-3 in a Broadcast Plant - PBS
Dolby AC-3 in a Broadcast Plant - PBS
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5.1 Audio Distribution Methods<br />
• Six channels of 20 bit PCM audio is<br />
<strong>in</strong>efficient: would occupy 6Mb/s bandwidth.<br />
• <strong>Dolby</strong> Labs envisioned broadcasters would<br />
use “<strong>Dolby</strong> E”.<br />
• <strong>PBS</strong> HD began as station “pass-thru” hence<br />
<strong>AC</strong>-3 was used.<br />
• <strong>Broadcast</strong> distribution store/forward models:<br />
–<strong>Dolby</strong> E system<br />
–<strong>Dolby</strong> D (<strong>AC</strong>-3) system
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