Cortical Entrainment to Speech Produced by Cochlear Implant Users and Normal-Hearing Talkers

Shruthi Raghavendra1; Sungmin Lee2; Fei Chen3; Brett A. Martin4; Chin-Tuan Tan1

10.1109/EMBC48229.2022.9871276

2022

2375-7477

978-1-7281-2783-5

2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

3577-3581

11-15 July 2022

Glasgow, Scotland, United Kingdom

The perceived sound quality of speech produced by hard-of-hearing individuals greatly depends on the degree and configuration of their hearing loss. A cochlear implant (CI) may provide some compensation and auditory feedback to monitor/control speech production. However, to date, the speech produced by CI users is still different in quality from that produced by normal-hearing (NH) talkers. In this study, we attempted to address this difference by examining the cortical activity of NH listeners when listening to continuous speech produced by 8 CI talkers and 8 NH talkers. We utilized a discriminative model to decode and reconstruct the speech envelope from the single-trial electroencephalogram (EEG) recorded from scalp electrode in NH listeners when listening to continuous speech. The correlation coefficient between the reconstructed envelope and original speech envelope was computed as a metric to quantify the difference in response to the speech produced by CI and NH talkers. The same listeners were asked to rate the perceived sound quality of the speech as a behavioral sound quality assessment. Both behavioral perceived sound quality ratings and the cortical entrainment to speech envelope were higher for the speech set produced by NH talkers than for the speech set produced by CI talkers.

Measurement Electrodes Correlation coefficient Cochlear implants Scalp Production Electroencephalography

其他

IEEE

1.University of Texas at Dallas, Richardson, TX, USA
2.Tongmyong University, Busan, Republic of Korea
3.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China
4.Graduate Center, City University of New York, New York, NY, USA

Shruthi Raghavendra,Sungmin Lee,Fei Chen,et al. Cortical Entrainment to Speech Produced by Cochlear Implant Users and Normal-Hearing Talkers[C],2022:3577-3581.