Can AI perfectly clone any human voice from just 15 seconds of audio?
A brief voice sample is now all it takes to create a digital twin of anyone's voice - raising profound ethical questions.
The answer
AI voice cloning has advanced to a startling degree. OpenAI's Voice Engine, previewed in March 2024, can replicate any person's voice from just a 15-second audio sample - a task that previously required eight hours of recordings. The synthetic voice captures tone, cadence, accent, and emotional inflection with remarkable fidelity. However, OpenAI deliberately withheld the tool from public release due to misuse concerns, especially during election years. Those fears proved justified: in January 2024, an AI-cloned voice of President Joe Biden was used in fake robocalls urging New Hampshire residents not to vote in the primary. OpenAI's safeguards require explicit speaker consent, prohibit impersonation, and mandate disclosure that voices are AI-generated. The technology also embeds audio watermarks to trace AI-generated speech back to its origin.
Source: NPR
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