Affiliation:
1. Lanzhou Jiaotong University
Abstract
A new method of pitch detection is proposed based on Hilbert-Huang Transform (HHT). Firstly noisy speech signal is filtered by morphological filtering to remove the noise, and then HHT is employed to get Hilbert-Huang spectrum and to calculate instantaneous energy and its derivative. Distinguish the unvoiced and voiced using mutation of instantaneous energy and track pitch.
Publisher
Trans Tech Publications, Ltd.
Reference8 articles.
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