International Symposium on Chinese Spoken Language Processing
August 23-24, 2002
Study on Detection of Prosodic Phrase Boundaries in Spontaneous Speech
Hui Sun, Mingxing Xu, Wenhu Wu
Center of Speech Technology,
Tsinghua University, Beijing, China
Prosodic information, which has the abilities of disambiguation,
improving the parsing of the spoken language and predicting
recognition errors, becomes more and more important in speech
recognition and understanding, especially in spontaneous speech.
In this paper, we investigate the detection of the phrase
boundaries by prosodic features in the domain-specified Chinese
spontaneous speech. The ultimate goal is to use these detected
boundaries in the recognition and understanding component of
EasyFlight, a Chinese spoken dialogue system for querying and
booking flight tickets, to improve the system performance. In the
experiment, we use more than 30 prosodic features for detecting
four types of the prosodic phrase boundaries and obtain a correct
detection rate over 85%.
Sun, Hui / Xu, Mingxing / Wu, Wenhu (2002):
"Study on detection of prosodic phrase boundaries in spontaneous speech",
In ISCSLP 2002, paper 63.