ISCA Archive Interspeech 2005
ISCA Archive Interspeech 2005

Proposal of acoustic measures for automatic detection of vocal fry

Carlos Toshinori Ishi, Hiroshi Ishiguro, Norihiro Hagita

Vocal fry is a voice quality that often appears in relaxed voices indicating low tension, or in pressed voices expressing attitudes/ feelings of surprise, admiration and suffering. We propose a set of acoustic measures for automatically detecting vocal fry segments in speech utterances. In order to deal with vocal fry utterances with very low fundamental frequencies, where classic short-term analysis methods become problematic, a glottal pulse synchronized method is proposed. The acoustic measures are based on power, periodicity and similarity properties of vocal fry signals. The basic idea is to scan for power peaks in a "very short-term" power contour, check for periodicity properties and evaluate a similarity measure between power peaks for deciding the possibility of vocal fry pulses. Sub-harmonic properties are also taken into account in the periodicity analysis. Evaluation of the proposed measures in automatic detection resulted in 73.3% correct detection, with an insertion error rate of 3.9%.

doi: 10.21437/Interspeech.2005-321

Cite as: Ishi, C.T., Ishiguro, H., Hagita, N. (2005) Proposal of acoustic measures for automatic detection of vocal fry. Proc. Interspeech 2005, 481-484, doi: 10.21437/Interspeech.2005-321

  author={Carlos Toshinori Ishi and Hiroshi Ishiguro and Norihiro Hagita},
  title={{Proposal of acoustic measures for automatic detection of vocal fry}},
  booktitle={Proc. Interspeech 2005},