PhoneViz: exploring alignments at a glance

This Show and Tell presents PhoneViz, a phone alignment visualiser which facilitates a deeper analysis of the phone alignments typically used to compare a reference transcription and a concrete speaker pronunciation. PhoneViz provides an interactive environment where aligned phones are displayed in the IPA chart helping users to explore phonetic variation beyond symbol substitution, insertion and deletion. We showcase the functionality of the visualiser using samples of Spanish-accented English, where users can see at a glance where there are phonetic similarities between substituted sounds.