2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information

2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information
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Paper Detail

Paper IDSPE-29.3
Paper Title Impact of speaking rate on the source filter Interaction in speech: a study
Authors Tilak Purohit, Achuth Rao M V, Prasanta Kumar Ghosh, Indian Institute of Science, India
SessionSPE-29: Speech Processing 1: Production
LocationGather.Town
Session Time:Wednesday, 09 June, 16:30 - 17:15
Presentation Time:Wednesday, 09 June, 16:30 - 17:15
Presentation Poster
Topic Speech Processing: [SPE-SPRD] Speech Production
IEEE Xplore Open Preview  Click here to view in IEEE Xplore
Abstract Source filter interaction (SFI) explains the drop in pitch caused due to the constriction in the vocal tract during voiced consonant production in a vowel-consonant-vowel (VCV) sequence. In this work, we examine how the drop in pitch alters when such a VCV sequence is spoken at three different speaking rates - slow, normal, and fast. In the absence of electro-glottograph (EGG) recording, a high-resolution pitch contour is determined using a glottal closure instant (GCI) detector. For this, in this work firstly, five different GCI detector and pitch estimation techniques are compared against EGG-based pitch estimates on a small dataset where simultaneous EGG recordings are available. Yet Another GCI Algorithm (YAGA) is found to be the best choice among all. For examining the impact of speaking rate on SFI, VCV recordings from six subjects with five vowels (/a/, /e/, /i/, /o/, /u/) and five consonants (/b/, /d/, /g/, /v/, /z/) at three speaking rates are used. The study reveals a significant difference between the pitch drop values between slow and fast rates, with increasing pitch drop with decreasing speaking rate. For slow speaking rate, vowel /o/ and /u/ tend to show higher pitch drop values compared to remaining vowels.