Evaluation of the acoustic and aerodynamic constraints of a pneumotachograph for speech and voice studiesReport as inadecuate




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* Corresponding author 1 LPL - Laboratoire Parole et Langage

Abstract : To measure oral and nasal airflow during speech production, several conditions must be gathered. In this aim, we designed and built a pneumotachograph with particular care to optimise its response time, linearity and acoustical response. This flow meter is based on the grid flow meter principle with a small dead volume and specific linearization for the inhaled and exhaled airflow. A soft silicone rubber mask, pressed against the speaker-s face prevents air leakage, without hindering articulatory movements. The acoustical distortions of the speech sound through the device are remedied by an adapted signal processing from its transfer function.

Keywords : speech and voice assessment airflow pneumotachograph aerodynamic





Author: Alain Ghio - Bernard Teston -

Source: https://hal.archives-ouvertes.fr/



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