INTERSPEECH 2017 August 20–24, 2017, Stockholm, Sweden Sounds of the Human Vocal Tract Reed Blaylock, Nimisha Patil, Timothy Greer, Shrikanth Narayanan Signal Analysis and Interpretation Laboratory University of Southern California, USA
[email protected], {nimishhp, timothdg}@usc.edu,
[email protected] Do speech and beatboxing articulations share the same Abstract mental representations? Previous research suggests that beatboxers only use sounds that Is beatboxing grammatical in the same way that exist in the world’s languages. This paper provides evidence to phonology is grammatical? the contrary, showing that beatboxers use non-linguistic How is the musical component of beatboxing represented articulations and airstream mechanisms to produce many sound in the mind? effects that have not been attested in any language. An analysis of real-time magnetic resonance videos of beatboxing reveals To address these questions, a comprehensive inventory of that beatboxers produce non-linguistic articulations such as beatboxing sounds and their articulations must first be ingressive retroflex trills and ingressive lateral bilabial trills. In compiled. addition, beatboxers can use both lingual egressive and Some steps toward this goal have already been taken. pulmonic ingressive airstreams, neither of which have been Splinter and TyTe [5] proposed a Standard Beatbox Notation reported in any language. (SBN) to encode contrasts between different beatboxing The results of this study affect our understanding of the sounds, and Stowell [6] uses a combination of new characters limits of the human vocal tract, and address questions about the and characters from the International Phonetic Alphabet (IPA) mental units that encode music and phonological grammar. to represent some sounds of beatboxing.