The aim of the present study was to examine if degraded listening conditions affect free recall of auditory presented stimuli. The result showed that a long reverberation time (RevT) decreases free recall performance. More detailed analyses revealed that memory of words presented in the beginning of the list were more impaired by the unfavorable listening conditions, which is in agreement with earlier findings. In addition, the relationship between working memory capacity and the effects of degraded listening conditions was studied. People who made many invention errors in the operation span test performed significantly more false recall in low S/N. These findings give support for the hypothesis that degraded stimuli activate more candidate words, and people who make those specific errors have problem to suppress those candidates.