Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Prediction of parameters of a pinna model from synthetic geometries using a vision transformera).

The Journal of the Acoustical Society of America·2026
Same author

[Expert certificate : "Otological, neurotological, and (lateral) skull base surgery"].

HNO·2026
Same author

Multicenter Natural History Study and Long-Term Cochlear Implant Outcomes in Usher Syndrome Subtypes.

Ear and hearing·2026
Same author

[Cochlear implantation in Ménière's disease].

HNO·2026
Same author

Effects of Dual-Electrode Asynchrony on Temporal Pitch Discrimination With Amplitude Modulation and Short Inter-Pulse Intervals in Cochlear Implant Listeners.

Trends in hearing·2026
Same author

Multicenter study results of the med-el partial ossicular replacement prostheses.

European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·2025

Related Experiment Video

Updated: Dec 28, 2025

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
06:54

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

1.6K

Improving Interaural Time Difference Sensitivity Using Short Inter-pulse Intervals with Amplitude-Modulated Pulse

Sridhar Srinivasan1, Bernhard Laback2,3, Piotr Majdak1

  • 1Acoustics Research Institute, Austrian Academy of Sciences, Wohllebengasse 12-14, A-1040, Vienna, Austria.

Journal of the Association for Research in Otolaryngology : JARO
|February 11, 2020
PubMed
Summary

Adding short inter-pulse intervals (SIPIs) to cochlear implant (CI) stimulation improves interaural time difference (ITD) sensitivity for amplitude-modulated signals. This enhancement is most effective when SIPIs are placed near the envelope peak, aiding spatial hearing.

Keywords:
ITD sensitivityamplitude modulationbilateral cochlear implantbinaural timing cueshigh-rate stimulationshort inter-pulse intervals

More Related Videos

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
07:00

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process

Published on: June 21, 2024

1.3K
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

703

Related Experiment Videos

Last Updated: Dec 28, 2025

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
06:54

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

1.6K
Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
07:00

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process

Published on: June 21, 2024

1.3K
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

703

Area of Science:

  • Auditory Neuroscience
  • Speech Processing
  • Biomedical Engineering

Background:

  • Interaural time differences (ITDs) are crucial for sound localization and speech intelligibility in noise.
  • Current cochlear implant (CI) strategies using high pulse rates often fail to preserve ITD cues.
  • Short inter-pulse intervals (SIPIs) have shown potential to improve ITD encoding in unmodulated CI stimulation.

Purpose of the Study:

  • To investigate if SIPIs enhance ITD sensitivity in amplitude-modulated (AM) high-rate pulse trains for cochlear implants.
  • To determine the effect of SIPI temporal position (phase), fundamental frequency (F0), and modulation depth on ITD perception.

Main Methods:

  • Systematic variation of SIPI phase, AM F0 (125 Hz, 250 Hz), and AM depth (0.1-0.9).
  • Stimuli delivered to an interaurally place-matched electrode pair at a high pulse rate (1000 pulses/s).
  • Participants performed an ITD-based left/right sound localization task.

Main Results:

  • SIPI insertion significantly improved ITD sensitivity across all tested modulation depths and F0s.
  • The greatest improvements in ITD sensitivity were observed when SIPIs were positioned at or near the envelope peak.
  • This enhancement was consistent for both male and female fundamental frequencies.

Conclusions:

  • SIPIs are effective in improving ITD encoding within amplitude-modulated high-rate pulse trains for cochlear implant stimulation.
  • Optimizing SIPI placement within the envelope cycle can maximize the benefit for spatial hearing.
  • These findings offer a promising strategy for restoring salient ITD cues in CI users, enhancing speech perception in complex acoustic environments.