Bit-width Optimization of CS-ACELP Speech Coder by SIMULINK: Core Layer of the New G.729.1 Standard
Publish place: 14th annual International CSI Computer Conference
Publish Year: 1388
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CSICC14_045
تاریخ نمایه سازی: 24 خرداد 1388
Abstract:
In this work, we present SIMUIINK bit-true .modeling of the conjugate structure-algebraic CELP (CS-ACELP) speech coder which has been chosen as the core layer of speech coder standard ITU-T G.729.1. The optimum bit numbers of the computational blocks are defined as the minimum word-widths that maintain the quality of the output with minimum chip area and power. Such optimum bitwidth of the coefficients and the internal computations are extracted. As a result, a golden model of the codec which best suits as a reference for its hardware implementation is developed. The power and area improvements are estimated in two blocks of CSACELP speech coder.
Authors
Zohre Sharifi Mehrjardi
School of Electrical and Computer Engineering University of Tehran, Tehran, Iran
Neda Kazemian Amiri
School of Electrical and Computer Engineering University of Tehran, Tehran, Iran
Sied Mehdi Fakhraie
School of Electrical and Computer Engineering University of Tehran, Tehran, Iran