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Wideband audio codec (WAC) improves the voice quality in the hand-free communication system. It allows the telephone conversation to sound more natural and subtle. In this paper, the G.729.1 WAC is ported to Altera Nios II platform and then optimized with dedicated hardware FIR filter and MDCT accelerators to improve the performance for faster operation. The hardware FIR filter and MDCT accelerators...
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