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This paper presents a low-power filter bank design for digital hearing aids, which is compliant with the ANSI S1.11 standard. A multi-rate filtering algorithm and its coefficient design method are proposed, which reduce 94% multiplications. The power dissipation is further reduced by 31% and 35% with switch activity reduction and multi-VDD silicon implementation respectively. The design has been implemented...
The performance of single-issue RISC cores can be improved significantly with multi-issue architectures (i.e. superscalar or VLIW) by activating the parallel functional units concurrently. However, they suffer high complexity or huge code sizes. In this paper, we borrow some ideas from old vector machines and propose a novel DSP architecture with very compact codes. In our simulations, the DSP has...
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