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Wednesday, October 14, 2009

Multiple Codec Operation Apnote

This application note describes a multi-stream audio decoder test bench that works without needing a threading operating system. A software test bench is provided for the Diamond 330HiFi processor that supports decoding and audio mixing of an arbitrary number of homogenous or heterogeneous audio streams. This application note describes the test bench, and discusses the coding techniques used to reduce memory requirements and to synchronize/mix audio decoded from multiple streams.