McKay, Henshall, Farrell, and McDermott [J. Acoust. Soc. Am. 113, 2054–2063 (2003)] developed a practical method to estimate the loudness of periodic electrical signals presented through a cochlear implant. In the present work, this method was extended to time-varying sounds based on two models of time-varying loudness for normal listeners. To fit the model parameters, loudness balancing data was collected with six cochlear implant listeners. The pulse rate of a modulated pulse train was adjusted to equalize its loudness to a reference stimulus. The stimuli were single-electrode time-limited pulse bursts, repeated at a rate of 50 Hz, with on-times varying between 2 and 20 ms. The parameters of two different models of time-varying loudness were fitted to the results. For each model, parameters defining the time windows over which the electrical pulses contribute to instantaneous loudness were optimized. In each case, a good fit was obtained with the loudness balancing results. Therefore, the practical method was successfully extended to time-varying sounds by combining it with existing models of time-varying loudness for acoustic stimulation.
Skip Nav Destination
,
,
,
Article navigation
June 2014
June 01 2014
Loudness of time-varying stimuli with electric stimulation
Tom Francart;
Tom Francart
a)
ExpORL
, Department of Neurosciences, KU Leuven, Herestraat 49 bus 721, B-3000 Leuven, Belgium
Search for other works by this author on:
Hamish Innes-Brown;
Hamish Innes-Brown
The Bionics Institute
, 384-388 Albert Street, East Melbourne, Victoria 3002, Australia
Search for other works by this author on:
Hugh J. McDermott;
Hugh J. McDermott
The Bionics Institute
, 384-388 Albert Street, East Melbourne, Victoria 3002, Australia
Search for other works by this author on:
Colette M. McKay
Colette M. McKay
The Bionics Institute
, 384-388 Albert Street, East Melbourne, Victoria 3002, Australia
Search for other works by this author on:
Tom Francart
a)
Hamish Innes-Brown
Hugh J. McDermott
Colette M. McKay
ExpORL
, Department of Neurosciences, KU Leuven, Herestraat 49 bus 721, B-3000 Leuven, Belgium
a)
Also at: The Bionics Institute, 384-388 Albert Street, East Melbourne VIC 3002, Australia. Author to whom correspondence should be addressed. Electronic mail: [email protected]
J. Acoust. Soc. Am. 135, 3513–3519 (2014)
Article history
Received:
October 03 2013
Accepted:
April 10 2014
Citation
Tom Francart, Hamish Innes-Brown, Hugh J. McDermott, Colette M. McKay; Loudness of time-varying stimuli with electric stimulation. J. Acoust. Soc. Am. 1 June 2014; 135 (6): 3513–3519. https://doi.org/10.1121/1.4874597
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
A survey of sound source localization with deep learning methods
Pierre-Amaury Grumiaux, Srđan Kitić, et al.
Focality of sound source placement by higher (ninth) order ambisonics and perceptual effects of spectral reproduction errors
Nima Zargarnezhad, Bruno Mesquita, et al.
Related Content
Detection and rate discrimination of amplitude modulation in electrical hearing
J. Acoust. Soc. Am. (September 2011)
Effects of upper-frequency boundary and spectral warping on speech intelligibility in electrical stimulation
J. Acoust. Soc. Am. (April 2008)
Effects of envelope shape on interaural envelope delay sensitivity in acoustic and electric hearing
J. Acoust. Soc. Am. (September 2011)
Modulation rate discrimination using half-wave rectified and sinusoidally amplitude modulated stimuli in cochlear-implant users
J. Acoust. Soc. Am. (February 2010)
Acoustic temporal modulation detection and speech perception in cochlear implant listeners
J. Acoust. Soc. Am. (July 2011)