Title :
Pitch scaling, difference limens and identification of electrical pulse rates on multichannel cochlear implant patients-implications for temporal speech processing
Author :
Lim, H.H. ; Tong, Y.C.
Author_Institution :
Dept. of Otolaryngology, Melbourne Univ., Parkville, Vic., Australia
Abstract :
Pitch scaling, difference limen (DL), and identification of pulse rates were conducted on nucleus multichannel cochlear implant patients. The results indicate that pulse rate could be used to encode suprasegmental speech information below 300-500 Hz. In general, the discrimination (DL) performance for pulse rate was better for electrode pairs with larger dynamic ranges, while identification (sensitivity index) performance for larger dynamic range electrode pairs was equal to or better than that for smaller dynamic range electrode pairs
Keywords :
bioelectric phenomena; hearing aids; prosthetics; speech analysis and processing; difference limens; electrical pulse rate identification; electrode pairs; multichannel cochlear implant patients; pitch scaling; pulse rate; sensitivity index; speech encoding; suprasegmental speech information; temporal speech processing; Cochlear implants; Dynamic range; Electrical stimulation; Electrodes; Frequency; Psychology; Space vector pulse width modulation; Speech processing; Testing; Turning;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96088
