Individuals with hearing loss, even when using hearing aids, often perceive pleasant environmental sounds as less pleasant than do those with normal hearing. This bias in emotional response may negatively impact well-being, leading to decreased social participation and increased loneliness. The present study examined whether the Positive Focus intervention-encouraging hearing aid users to focus on positive listening experiences-could influence emotional response to environmental sounds. Thirty participants were randomly assigned to either a Positive Focus or a Control group. At the initial laboratory visit, all participants were fitted with study hearing aids and performed affective ratings of 120 environmental sounds. Over 3 weeks, both groups wore the hearing aids; the Positive Focus group additionally reported daily positive listening experiences via a text message. At the end of the three-week period, participants completed questionnaires on hearing aid outcomes and repeated the affective ratings. The Positive Focus intervention did not alter emotional responses to environmental sounds in a laboratory setting. However, regression analyses revealed that valence ratings of typically pleasant sounds moderated the effectiveness of Positive Focus on hearing aid benefit; the intervention was more effective for individuals less naturally inclined to respond positively to such sounds. These findings suggest that valence screening may help identify individuals most likely to benefit from Positive Focus, supporting more personalized hearing care strategies.