As already seen in the embedded computing industry and other consumer markets, the trend in audio signal processing architectures is towards multi-core designs. This trend is expected to continue given the need to support higher performance applications that are becoming more prevalent in both the consumer and professional audio industries. This paper describes a multi-core audio architecture being promoted to the audio industry and details the various architectural hardware, software and system level trade-offs. The proper application of multi-core architectures is addressed for both consumer and professional audio applications and a comparison of single core, multi-core, and multi-chip designs is provided based on the authors’ experience in the design, development and application of signal processors.
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