Zeng · JASA express letters 2022 · narrative review · n=?

Celebrating the one millionth cochlear implant.

Cited 193 times in the scientific literature.

Level 5 - mechanism / opinion, no new human data

Narrative review and expert commentary without new empirical data or systematic synthesis.

PubMed 36154048 · doi:10.1121/10.0012825 · record verified 2026-08-26

What was done

This commentary reviews the historical development, speech-processing models, performance milestones, and scientific insights derived from multi-channel cochlear implants as the global user base reached one million.

What was found

Modern multi-channel cochlear implants allow recipients to achieve an average of 70%–80% correct sentence recognition in quiet. While front-end processing has improved speech recognition in noise, unilateral speech recognition performance in quiet has plateaued since the early 1990s.

Why it matters

It highlights that current processing strategies have reached performance limits in quiet conditions, pointing to the necessity of re-engineering the cochlear stimulating interface in partnership with the neurotechnology community.

Limits

The abstract is an expert commentary and presents no primary clinical trial data, sample size details, or systematic review methodology. Variance and detailed quantitative data for speech recognition in noise are not reported.

Cited by