title: A Speech Perception Test in Simulated Reverberation Conditions.
abstract: OBJECTIVE
  This study developed new test materials by applying various reverberation treatments to sentences having high and low contextual redundancy.
  
  
  METHODS
  The Speech Perception in Noise-Revised (SPIN-R; Bilger, Nuetzel, Rabinowitz, & Rzeczkowski, 1984; Kalikow, Stevens, & Elliott, 1977) sentences were modified (SPIN-Reverb) with reverberation times (RT60) from simulated environments: unprocessed, RevCond 1 (RT60 = 600 ms), RevCond 2 (RT60 = 1200 ms), and RevCond 3 (RT60 = 3600 ms). Phase 1 investigated list equivalency among 75 listeners with normal hearing; Phase 2 examined the utility of SPIN-Reverb for 15 cochlear implant (CI) recipients.
  
  
  RESULTS
  Equivalent lists within each reverberation condition (unprocessed, RevCond 1, 2, and 3) were identified using nonparametric bootstrapping. Analysis of variance (Phase 1) demonstrated significant differences across conditions for high predictability and total scores. Listening performance decreased for both high and low predictability as RT60 increased for listeners with normal hearing and CI recipients. Unprocessed, RevCond 1, RevCond 2, and RevCond 3 conditions were significantly different from each other. Within RevCond conditions, high- and low-predictability sentences were significantly different from each other.
  
  
  CONCLUSIONS
  RevCond 1 and RevCond 2 may be useful supplements to the current CI battery. The SPIN-Reverb has potential as a set of clinically feasible materials that are graded in difficulty and representative of real-life acoustic challenges for the evaluation of sensory devices.
authors: Jaclyn B
authors: JB
authors: Spitzer
authors: Sharon A
authors: SA
authors: Sandridge
authors: Craig W
authors: CW
authors: Newman
authors: Sarah
authors: S
authors: Sydlowski
authors: Robert M
authors: RM
authors: Ghent
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D019929:Cochlear Implantation; D003054:Cochlear Implants; D003638:Deafness / Q000534:rehabilitation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013063:Speech Discrimination Tests / Q000379:methods*; D013067:Speech Perception; D055815:Young Adult