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DSP Software and Hardware Trade-offs in Professional Audio Applications

Professional Audio systems target a wide variety of applications for recording, mixing, musical instruments, studios, and broadcasting. The challenge for Pro Audio systems designers is to find solutions not only to satisfy some of the more common requirements (including high sample rates, high performance and high precision) but also to meet system-specific design goals such as minimizing latency in effects processors and bit error tracking in digital mixing consoles. This paper will first summarize these requirements; then discuss hardware architecture and software methodology trade-offs (e.g. sample-by-sample vs. block processing) and present a flexible DSP architecture for these systems.

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