Objective speech intelligibility measurement for cochlear implant users in complex listening environments

João F. Santos, Stefano Cosentino, Oldooz Hazrati, Philipos C. Loizou, Tiago H. Falk
2013 Speech Communication  
Objective intelligibility measurement allows for reliable, low-cost, and repeatable assessment of innovative speech processing technologies, thus dispensing costly and time-consuming subjective tests. To date, existing objective measures have focused on normal hearing model, and limited use has been found for restorative hearing instruments such as cochlear implants (CIs). In this paper, we have evaluated the performance of five existing objective measures, as well as proposed two refinements
more » ... one particular measure to better emulate CI hearing, under complex listening conditions involving noise-only, reverberation-only, and noise-plus-reverberation. Performance is assessed against subjectively rated data. Experimental results show that the proposed CI-inspired objective measures outperformed all existing measures; gains by as much as 22% could be achieved in rank correlation.
doi:10.1016/j.specom.2013.04.001 pmid:23956478 pmcid:PMC3744246 fatcat:ttzqjv4gyva65f5v3glvkxty6y