The following file contains the CMU Pronouncing Dictionary version 0.6 augmented with syllable boundaries (syllabified CMU). The boundaries were generated automatically using a structured SVM approach, which was shown to correctly syllabify over 98% words in the CELEX dictionary. If you use this data in your work, please cite the following paper:

Susan Bartlett, Grzegorz Kondrak and Colin Cherry.
On the Syllabification of Phonemes.
NAACL-HLT 2009.

cmudict.0.6d.syl