To investigate how respiratory muscles and respiration are controlled during L1 and L2 text readings, experiments were conducted to acquire data on (A) upper- and lower- chest and upper- and lower- abdominal movements, utilizing four respiratory strain-gauge transducers (4-RSTs) and (B) inspiratory and expiratory volumes, utilizing a soft respiratory mask with a two-way bulb. Speech were recorded for (A). In addition, the subjects’ pulmonic vital capacities were measured. Five male students read two kinds of text materials in either Japanese (L1) or English (L2) five times. Thus, we acquired 200 data for chest and abdominal movements, 100 data for respiration and 100 data for the recorded voice in addition to his pulmonic data and made quantitative and statistical analyses. Our findings were: (1) text reading speed was more stable in L1 than in L2, (2) the lower abdomen is controllable. This may indicate “stomach respiration,” (3) the inspiratory and expiratory controls during speech differed largely from those in quiet breathing, indicating acute active muscular movements, (4) the vital capacity volume did not sufficiently correlate with the subjects’ expiratory and inspiratory air volume during speech and (5) a better English pronunciation might be supported by alternative control of inspiration and respiration.
Cite as: Isei-Jaakkola, T., Ochi, K., Hirose, K. (2018) Respiratory and Respiratory Muscular Control in JL1’s and JL2’s Text Reading Utilizing 4-RSTs and a Soft Respiratory Mask with a Two-Way Bulb. Proc. Interspeech 2018, 3012-3016, doi: 10.21437/Interspeech.2018-1948
@inproceedings{iseijaakkola18_interspeech,
author={Toshiko Isei-Jaakkola and Keiko Ochi and Keikichi Hirose},
title={{Respiratory and Respiratory Muscular Control in JL1’s and JL2’s Text Reading Utilizing 4-RSTs and a Soft Respiratory Mask with a Two-Way Bulb}},
year=2018,
booktitle={Proc. Interspeech 2018},
pages={3012--3016},
doi={10.21437/Interspeech.2018-1948}
}