Visualized feedback of acoustic features of own speech sound during utterance training: Evaluation by young people with hearing impairment.

Abstract

In this study, a method for visualizing speech sound for the purpose of speech training for deaf and hard-of-hearing students was investigated. The students recorded their own voices in a class on speech and acoustics and visualized their speech sounds. Audacity and Praat, the speech analysis software, were used for visualization. Time waveforms, spectrograms, pitch, and pressure levels were displayed. The students were able to describe the di!erence in pitch when compared to the author's voice but could not analyze the phoneme level. In the future, I will continue to study the acoustic features displayed and investigate a method to visualize them in real time.