Study: Listeners Struggle to Spot AI Voiceovers

RADIO ONLINE | Tuesday, July 7, 2026 | 3:12pm CT

Crowd React Media

A new study from Crowd React Media suggests radio listeners often can't distinguish between AI-generated and human voiceovers in blind listening tests, but perceptions shift significantly once listeners learn a voice was created by artificial intelligence.

The research, conducted in May and June 2026 among 1,326 weekly radio listeners ages 18-45, tested two radio scripts-a station promotion and a Mother's Day reminder-in both human and AI-generated versions. Participants heard only one version and were not told whether the voice was human or AI.

According to the study, listeners rated AI and human voices nearly identically for professionalism, authenticity, credibility, energy and likability. Overall appeal was virtually the same, with the AI version of one spot receiving a 61% positive rating compared to 60% for the human voice.

The only statistically significant performance difference involved humor. In a promotional spot built around a joke, 33% of listeners described the human voice as funny, compared with 26% for the AI version, suggesting human delivery still holds an advantage when comedic timing is important.

Researchers found the biggest differences emerged after listeners were told which version they had heard. Among those who learned they had listened to a human voice, 48% said they felt more favorably about the audio, while only 4% viewed it less favorably.

By contrast, 20% of those who learned they had heard an AI-generated voice reported a less favorable opinion, while only 25% felt more positive. The study says those changes in perception were statistically significant.

When asked about AI-generated voices in media generally, 44% of respondents expressed a positive view, 30% were neutral and 26% were negative. However, one-third said they would think less of a radio station if they discovered it used AI voices, while fewer than one-quarter said their opinion would improve.

Open-ended responses indicated that listeners who reacted negatively to AI often cited concerns about trust, authenticity and replacing human talent rather than the quality of the voice itself. Others viewed AI as an innovative production tool, particularly when used for commercials or brief promotional announcements rather than as a substitute for on-air personalities.

The study concludes that while AI voice technology has become technically competitive with human voice talent for many production applications, broadcasters should carefully consider the impact of transparency and audience trust when deciding how and where to deploy AI-generated voices.

Read the entire Crowd React Media blog post here.