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As the evolution of smart phone, 3D graphics become more and more important in mobile computing systems. Within 3D graphics, logarithmic arithmetic is usually utilized to simplify multiplication, division, and power operations. In this paper, we propose a low-error and Rom-free logarithmic arithmetic unit for 3D graphics applications. The logarithmic arithmetic unit applies non-uniform regional linear...
The ANSI S1.11 1/3-octave filter bank is popular in many acoustic applications because it matches the human hearing characteristics. However, the long group delay and the high computational complexity limit the usage in hearing aids. A Quasi-ANSI S1.11 18-band 1/3-octave filter bank is proposed to reduce the group delay. With the matching error reduction method, the results show that the filter bank...
Auditory compensation consumes significant power due to the computation-intensive operations in the filter bank. To reduce the complexity, a controllable filter was designed to replace the filter bank. Filter order was designed to match prescriptions within a specific error constraint with minimum computational cost. An interpolation scheme according to the variation of signal intensity was implemented...
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