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Pitch detection with average magnitude difference function using adaptive threshold algorithm for estimating shimmer and jitter

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5 Author(s)
Hae Young Kim ; Interdisciplinary Program in Med. & Biol. Eng. Major, Seoul Nat. Univ., South Korea ; Jae Sung Lee ; Myung-Whun Sung ; Kwang Hyun Kim
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In order to estimate jitter and shimmer, we suggest a method for the detection of precise pitch and amplitude of voiced speech signal. After low-pass filtering, voiced/unvoiced decision and pitch detection is performed using the average magnitude difference function. We find a minimum value at t=τ and also check the possible minimum value at t=τ/2, τ/3, τ/4, τ/5, τ/6. By the application of adaptive threshold, we can estimate pitch more accurately

Published in:

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE  (Volume:6 )

Date of Conference:

29 Oct-1 Nov 1998

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