Local Rhyme-based Acoustic Features for Mandarin Tone Recognition

Dinoj Surendran; Gina-Anne Levow. 25 May, 2006.
Communicated by Gina-Anne Levow.


We investigate the use in Mandarin tone recognition of over two hundred possible local acoustic features based on pitch, overall intensity, and band-passed intensity in the rhyme of a syllable. Features involving pitch height are not as useful as one might expect, showing the need for phrase-level pitch height correction. The intensity contour is useful, particularly when rhyme-initial intensity is subtracted. Intensity in certain medium and high-frequency bands also provides useful information. Unsurprisingly, contour tones are better recognized than level tones using only local features.

Original Document

The original document is available in PDF (uploaded 25 May, 2006 by Gina-Anne Levow).