ArticleThe Journal of the Acoustical Society of America2019
Simulations of the effect of unlinked cochlear-implant automatic gain control and head movement on interaural level differences.
Article in The Journal of the Acoustical Society of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
15 citing papers in PubMed.
- Training spatial hearing in unilateral cochlear implant users through reaching to sounds in virtual reality.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 · 2023Trial
- Magnified interaural level differences enhance binaural unmasking in bilateral cochlear implant users.The Journal of the Acoustical Society of America · 2025Article
- Effects of better-ear glimpsing, binaural unmasking, and spectral resolution on spatial release from masking in cochlear-implant users.The Journal of the Acoustical Society of America · 2022Article
- Sound source localization patterns and bilateral cochlear implants: Age at onset of deafness effects.PloS one · 2022Article
- Effects of Bilateral Automatic Gain Control Synchronization in Cochlear Implants With and Without Head Movements: Sound Source Localization in the Frontal Hemifield.Journal of speech, language, and hearing research : JSLHR · 2021Article
- Further simulations of the effect of cochlear-implant pre-processing and head movement on interaural level differences.The Journal of the Acoustical Society of America · 2021Article
- Effects of rate and age in processing interaural time and level differences in normal-hearing and bilateral cochlear-implant listeners.The Journal of the Acoustical Society of America · 2019Article
- Article
- Novel Approaches to Measure Spatial Release From Masking in Children With Bilateral Cochlear Implants.Ear and hearingArticle
- Article
- Head Shadow, Summation, and Squelch in Bilateral Cochlear-Implant Users With Linked Automatic Gain Controls.Trends in hearingArticle
- Effects of Head Movements on Sound-Source Localization in Single-Sided Deaf Patients With Their Cochlear Implant On Versus Off.Ear and hearingArticle
- Auditory Motion Perception by Bilateral Cochlear Implant Users With a Sound Coding Strategy that Synchronizes Peak-Picking Across the Ears.Trends in hearingArticle
- Pinna-Imitating Microphone Directionality Improves Sound Localization and Discrimination in Bilateral Cochlear Implant Users.Ear and hearingArticle
- Review of Binaural Processing With Asymmetrical Hearing Outcomes in Patients With Bilateral Cochlear Implants.Trends in hearingReview
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
This study simulated the effect of unlinked automatic gain control (AGC) and head movement on the output levels and resulting inter-aural level differences (ILDs) produced by bilateral cochlear implant (CI) processors. The angular extent and velocity of the head movements were varied in order to observe the interaction between unlinked AGC and head movement. Static, broadband input ILDs were greatly reduced by the high-ratio, slow-time-constant AGC used. The size of head-movement-induced dynamic ILDs depended more on the velocity and angular extent of the head movement than on the angular position of the source. The profiles of the dynamic, broadband output ILDs were very different from the dynamic, broadband input ILD profiles. Short-duration, high-velocity head movements resulted in dynamic output ILDs that continued to change after head movement had stopped. Analysis of narrowband, single-channel ILDs showed that static output ILDs were reduced across all frequencies, producing low-frequency ILDs of the opposite sign to the high-frequency ILDs. During head movements, low- and high-frequency ILDs also changed with opposite sign. The results showed that the ILDs presented to bilateral CI listeners during head turns were highly distorted by the interaction of the bilateral, unlinked AGC and the level changes induced by head movement.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.