Evidence-based occupational hearing screening II: validation of a screening methodology using measures of functional hearing ability

Sigfrid D. Soli*, Akiko Amano-Kusumoto, Odile Clavier, Jed Wilbur, Kristen Casto, Daniel Freed, Chantal Laroche, Véronique Vaillancourt, Christian Giguère, Wouter A. Dreschler, Koenraad S. Rhebergen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Objective: Validate use of the Extended Speech Intelligibility Index (ESII) for prediction of speech intelligibility in non-stationary real-world noise environments. Define a means of using these predictions for objective occupational hearing screening for hearing-critical public safety and law enforcement jobs. Design: Analyses of predicted and measured speech intelligibility in recordings of real-world noise environments were performed in two studies using speech recognition thresholds (SRTs) and intelligibility measures. ESII analyses of the recordings were used to predict intelligibility. Noise recordings were made in prison environments and at US Army facilities for training ground and airborne forces. Speech materials included full bandwidth sentences and bandpass filtered sentences that simulated radio transmissions. Study sample: A total of 22 adults with normal hearing (NH) and 15 with mild–moderate hearing impairment (HI) participated in the two studies. Results: Average intelligibility predictions for individual NH and HI subjects were accurate in both studies (r2 ≥ 0.94). Pooled predictions were slightly less accurate (0.78 ≤ r2 ≤ 0.92). Conclusions: An individual’s SRT and audiogram can accurately predict the likelihood of effective speech communication in noise environments with known ESII characteristics, where essential hearing-critical tasks are performed. These predictions provide an objective means of occupational hearing screening.

Original languageEnglish
Pages (from-to)323-334
Number of pages12
JournalInternational Journal of Audiology
Issue number5
StatePublished - 4 May 2018
Externally publishedYes


  • Extended Speech Intelligibility Index
  • Hearing-critical job tasks
  • Speech Intelligibility Index
  • likelihood of effective speech communication
  • real-world noise environments


Dive into the research topics of 'Evidence-based occupational hearing screening II: validation of a screening methodology using measures of functional hearing ability'. Together they form a unique fingerprint.

Cite this