David Greene, the longtime host of NPR's Morning Edition, is suing Google over the male voice used by NotebookLM to generate AI podcast discussions. Greene says friends, relatives, and colleagues recognized his cadence, intonation, and small pauses in the voice. Google says the sound is unrelated to Greene and was based on a paid professional actor, TechCrunch reported on February 15th.

A voice carries work that remains difficult to separate from the body that produced it. Greene's authority was built through years of broadcasts, interviews, and repeated appearances inside listeners' mornings. NotebookLM turns a similar cadence into an interface feature that can summarize documents without naming the person whose vocal identity it appears to borrow. The dispute therefore concerns an audible likeness rather than a copied recording. A company can hire an actor, train a model, and describe the result as a new voice while listeners hear a professional signature. OpenAI faced a similar conflict when Scarlett Johansson objected to a ChatGPT voice that resembled her own. The microphone no longer needs a performer in the room. It still needs an answer when the public recognizes who seems to be speaking.