UHD SDI Audio v1.0 Product Guide - 1.0 English - This IP core is configurable as an Audio Embedder or an Audio Extractor. When configured as an Audio Embedder, it can embed up to 16 channels (8 channel pairs) of synchronous audio onto an SDI stream. Similarly, when configured as an Audio Extractor, it can extract up to 16 channels (8 channel pairs) of synchronous audio from the incoming SDI stream.