The Use of 2D Real-Time Visual Feedback Software in Foreign Vowel Sound Production Training

Nobuhisa Hiraishi


SonicPrint™, a free 2D real-time visual feedback software for windows was adjusted and installed in a CALL room at a university in Japan and applied for English vowel pronunciation training with a total of 97 students for four times. The vowel sounds produced by the students were recorded on three occasions, pre-training, post-training, and one month after the post-training. The formant frequency measurements of eight randomly-selected students were analysed and mapped on F1-F2 vowel charts. Although a powerful L1 vowel influence was observed, the vowel training software has shown promising results.


 DOI: 10.21437/ISAPh.2016-22

Cite as: Hiraishi, N. (2016) The Use of 2D Real-Time Visual Feedback Software in Foreign Vowel Sound Production Training. Proc. ISAPh 2016 International Symposium on Applied Phonetics, 113-116, DOI: 10.21437/ISAPh.2016-22.


@inproceedings{Hiraishi2016,
  author={Nobuhisa Hiraishi},
  title={The Use of 2D Real-Time Visual Feedback Software in Foreign Vowel Sound Production Training},
  year=2016,
  booktitle={Proc. ISAPh 2016 International Symposium on Applied Phonetics},
  pages={113--116},
  doi={10.21437/ISAPh.2016-22},
  url={http://dx.doi.org/10.21437/ISAPh.2016-22}
}