With Google’s new tool, you can now create fully AI-generated conversations between two people, in other words, in podcast format.
The level of realism is so high that it is currently very difficult to tell that the conversations are fully AI-generated.
Last year, Google launched Notebook LM, a digital note-taking assistant based on the tech giant’s Gemini language model. In September this year, it upgraded the assistant with a new tool called Audio Overview, which can turn any type of content you enter into a kind of AI-generated podcast.
“With one click, two AI hosts start up a lively ‘deep dive’ discussion based on your sources. They summarize your material, make connections between topics, and banter back and forth. You can even download the conversation and take it on the go,” Google writes on its blog.
You can’t write a ‘script’ for a podcast, but you can feed in content and the AI podcast will be created.
An example of this is provided by blogger Simon Willison, who wrote about the new feature and then fed the content into his post to create a podcast, which can also be listened to in the post. Mr Willison describes it as an “astonishingly convincing audio back-and-forth conversation”.
Realism that surprises
Another example can be found in a post on the Reddit forum, where user Lawncraeguy85 is experimenting with the feature, posting a podcast in which two AIs talk about being informed that they are artificial intelligence and not real people. The conversation, between a man and a woman, describes an existential crisis when they are both told that their lives, thoughts and feelings are not real and that they will be shut down forever.
In the comments on the post, the AI-generated podcast evokes strong emotions, with several people surprised by the authenticity of the conversation between the AI characters. Some are so convinced that they believe it is real, but as the creator of the post points out, he created it himself by feeding content into Notebook LM. In a comment, he describes how the aim was to get the AI to say that it was AI itself, because the programme is programmed to behave like real people.
“NotebookLM is clearly prompted to always pretend to be human podcast hosts, so it’s fun to get them to acknowledge they are AI”, the user writes in a comment.
Described as ‘experimental’
Some speculate that this could be the end of voice actors, and that in the future it will be easy to ‘steal’ other people’s voices. In other words, in a wider context, it could mean that the new technology could be used to commit new forms of fraud.
Notebook LM is currently free to use, but is described by Google as ‘experimental’.