The Effect of Speaking Rate on Audio and Visual Speech

Sarah Taylor, Barry-John Theobald, Iain Matthews

Research output: Contribution to conferencePaperpeer-review

9 Citations (Scopus)
18 Downloads (Pure)


The speed that an utterance is spoken affects both the duration of the speech and the position of the articulators. Consequently, the sounds that are produced are modified, as are the position and appearance of the lips, teeth, tongue and other visible articulators. We describe an experiment designed to measure the effect of variable speaking rate on audio and visual speech by comparing sequences of phonemes and dynamic visemes appearing in the same sentences spoken at different speeds. We find that both audio and visual speech production are affected by varying the rate of speech, however, the effect is significantly more prominent in visual speech.
Original languageEnglish
Number of pages4
Publication statusPublished - May 2014
EventIEEE International Conference on Acoustics, Speech and Signal Processing - Florence, Italy
Duration: 4 May 20149 May 2014


ConferenceIEEE International Conference on Acoustics, Speech and Signal Processing


  • Audio-visual speech
  • speaking rate
  • dynamic visemes

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