Binding of speech syllables when segregation occurs

International audience; Two previous studies [David et al., 2017, Hear. Res. 344, 235-243; David et al., 2017, J. Acoust. Soc.Am. 142(3), 1674-1685] have investigated the segregation of speech syllables made of a fricativeconsonant and a vowel, referred to as CV tokens. The first study explored the segregation of suchsyllables based on fundamental frequency differences. The second study explored the segregation ofthe CV tokens based on localization cues, especially the spectral cues in the median plane. Bothstudies found that segregation can be observed based on F0 and on spectral cues. Interestingly, it wasfound that the whole CV token remains grouped even when segregation occurs based on cues thataffect only one part of the CV: F0 differences affect mostly the vowel part, whereas coloration in themedian plane is effective mostly at high frequencies, selectively affecting the consonant part. Themechanisms that allow the CV to remain grouped under such circumstances remain unclear. Thepresent manuscript reviews the results of these two studies and provides some suggestions as to howsuch binding might occur.