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AC-3
Frame Synchronizer and Rate Shaper |
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Maintaining consistent, error-free AC-3 bitstreams is critical for high quality audio transmission. Bitstreams
delivered from sources outside of the local plant must be synchronized
to local reference, must be free of errors and must be of a consistent
data rate to prevent multiplexer issues. Decoding and re-encoding AC-3
is expensive, degrades audio quality, and is therefore not an option. The Linear Acoustic Model LA-5448 Frame Synchronizer and Rate Shaper satisfies these requirements and more, all without re-coding, and can process up to four separate AC-3 streams in a single rack unit. The LA-5448 is ideal for applications where AC-3 streams are delivered from external sources and must be multiplexed into a single transport stream. This requires all streams to be locked to local reference, but also to be free of errors and most importantly kept at a consistent data rate. As there is no way to guarantee a fixed data rate from an external source, it must be handled locally. The unit can also be used in situations such as commercial insertions where content of varying data rates needs to be combined into a single consistent output stream. The LA-5448 can be located after a standard routing switcher able to pass AC-3, and regardless of what stream is selected, the result will be consistent and error free. FEATURES
Spec Sheet
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Copyright 2008 TLS Corp. |
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