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Computer Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Digital Communications and Networking

2015

Inter­na­tional Jour­nal of Sci­en­tific Engi­neer­ing and Tech­nol­ogy (IJSET)

Articles 1 - 2 of 2

Full-Text Articles in Computer Engineering

Efficient Logarithmic Function Approximation, Amjad F. Hajjar, Mohammad H. Awedh Jul 2015

Efficient Logarithmic Function Approximation, Amjad F. Hajjar, Mohammad H. Awedh

Innovative Research Publications IRP India

A criteria is developed for the approximations of a logarithmic function to piecewise straight lines at multiple segments such that the maximum absolute error is minimized.The optimum cutting points for segmentation are estimated numerically with an exhaustive search. Our hardware implementation is restricted to integer operations (addition and shifting).


Pitch Detection Of Speech Signal Using Wavelet Transform, Innovative Research Publications Irp India, Amin Shadravan Lalezari, Jalil Shirazi May 2015

Pitch Detection Of Speech Signal Using Wavelet Transform, Innovative Research Publications Irp India, Amin Shadravan Lalezari, Jalil Shirazi

Innovative Research Publications IRP India

Pitch frequency is the fundamental frequency of a speech signal. It is one of the most important parameters for speech signal processing. The simulated results on Keele pitch reference database show that the performance of the proposed wavelet transform based pitch detection algorithm is obviously better than the original AMDF and its improvements based algorithms