This study investigated three objective sound quality models developed for hearing aid tests with hearing-impaired listeners. The models had been developed and trained before this validation study. Here we present validation results on a range of new signals and new types of signal processing using both normal-hearing and hearing-impaired listeners. The results of the validation were mixed, with some predictions highly correlated with subjective ratings and others poorly correlated. On average, the models seemed to perform quite equal, although specific models performed better on specific data sets.
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