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Lorenc, Anita; Król, Daniel; Klessa, Katarzyna; Mik, Łukasz; Borowiec, Agnieszka, 2026, "Data visualisations: Developing acoustic field distribution analysis tools for noninvasive assessment of laterality and nasality in disordered and typical pronunciation", https://doi.org/10.58132/JUSJC3, Dane Badawcze UW, V1
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Supplementary materials / video visualisations of the data used in the scientific publication describing the acoustic field distribution analyser, together with sample case studies illustrating the investigation of typical and disordered laterality and nasality in speech — areas in which fully non-invasive diagnostic tools are still lacking.
A portable system was developed by combining a custom circular microphone array with software for temporal, spectral and spatial speech analysis in both horizontal and vertical planes. The array comprises 16 micro-electro-mechanical microphones equipped with pulse-density modulators, along with a laser distance sensor that focuses the acoustic beam on the facial contours and compensates for the speaker’s head movements – thereby increasing the array’s focusing precision.
Two case studies visualise disordered speech in patients with (1) occlusal development disorders and compensatory articulation, and (2) bilateral cleft lip and palate with resonance issues, compared to typical speech patterns. Spatial analysis of the acoustic field distribution enabled a non-invasive comparison of articulation symmetry and air pressure distribution in both the horizontal and vertical planes, facilitating the investigation of (undesired) lateral and (hyper)nasalised pronunciations. The system allows for the investigation of the acoustic field distribution around the speaker’s face, offering potential for research, diagnostic and therapeutic uses.
acoustic field distribution analysis, microphone array, speech laterality and nasality
Anita Lorenc, Daniel Król, Katarzyna Klessa, Łukasz Mik & Agnieszka Borowiec (16 Sep 2025): Developing acoustic field distribution analysis tools for noninvasive assessment of laterality and nasality in disordered and typical pronunciation, Clinical Linguistics & Phonetics. https://doi.org/10.1080/02699206.2025.2550419 https://doi.org/10.1080/02699206.2025.2550419 doi: 10.1080/02699206.2025.2550419
CC BY - Creative Commons Attribution 4.0
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