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- W2000749240 abstract "The improvement of detectability of visible speech cues found by Grant and Seitz [2000. The use of visible speech cues for improving auditory detection of spoken sentences. JASA 108, 1197–1208] has been related to the degree of correlation between acoustic envelopes and visible movements. This suggests that audio and visual signals could interact early during the audio-visual perceptual process on the basis of audio envelope cues. On the other hand, acoustic-visual correlations were previously reported by Yehia et al. [1998. Quantitative association of vocal tract and facial behavior. Speech Commun. 26 (1), 23–43]. Taking into account these two main facts, the problem of extraction of the redundant audio-visual components is revisited: the video parametrization of natural images and three types of audio parameters are tested together, leading to new and realistic applications in video synthesis and audio-visual speech enhancement. Consistent with Grant and Seitz’s prediction, the 4-subband envelope energy features are found to be optimal for encoding the redundant components available for the enhancement task. The proposed computational model of audio-visual interaction is based on the product, in the audio pathway, between the time-aligned audio envelopes and video-predicted envelopes. This interaction scheme is shown to be phonetically neutral, so that it will not bias phonetic identification. The low-level stage which is described is compatible with a late integration process, which may be used as a potential front-end for speech recognition applications." @default.
- W2000749240 created "2016-06-24" @default.
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- W2000749240 date "2004-10-01" @default.
- W2000749240 modified "2023-09-27" @default.
- W2000749240 title "A phonetically neutral model of the low-level audio-visual interaction" @default.
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- W2000749240 doi "https://doi.org/10.1016/j.specom.2004.10.003" @default.
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