Vocal drum sounds in human beatboxing: An acoustic and articulatory exploration using electromagnetic articulography
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2021
- ISIDORE Id: 10670/1.aaf476...
- hal: hal-03107358
- doi: 10.1121/10.0002921
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info:eu-repo/semantics/altIdentifier/doi/10.1121/10.0002921
http://creativecommons.org/licenses/by/ , info:eu-repo/semantics/OpenAccess
Mots-clés
Phonetics Articulator Acoustics Larynx Medical diagnosis Speech communication Sound production technology -ph] -ph]/Biomechanics [physics.med-ph]Sujets proches
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Annalisa Paroni et al., « Vocal drum sounds in human beatboxing: An acoustic and articulatory exploration using electromagnetic articulography », HAL SHS (Sciences de l’Homme et de la Société), ID : 10.1121/10.0002921
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Acoustic characteristics, lingual and labial articulatory dynamics, and ventilatory behaviors were studied on abeatboxer producing twelve drum sounds belonging to five main categories of his repertoire (kick, snare, hi-hat, rim-shot, cymbal). Various types of experimental data were collected synchronously (respiratory inductance plethysmography, electroglottography, electromagnetic articulography, and acoustic recording). Automatic unsupervised classification was successfully applied on acoustic data with t-SNE spectral clustering technique. A cluster purity value of 94% was achieved, showing that each sound has a specific acoustic signature. Acoustical intensity of sounds produced with the humming technique was found to be significantly lower than their non-humming counterparts. For these sounds, a dissociation between articulation and breathing was observed. Overall, a wide range of articulatory gestures was observed, some of which were non-linguistic. The tongue was systematically involved in the articulation of the explored beatboxing sounds, either as the main articulator or as accompanying the lip dynamics. Two pulmonic and three non-pulmonic airstream mechanisms were identified. Ejectives were found in the production of all the sounds with bilabial occlusion or alveolar occlusion with egressive airstream. A phonetic annotation using the IPA alphabet was performed, highlighting the complexity of such sound production and the limits of speech-based annotation.
