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Meta's Voicebox is like Stable Diffusion for voices: The generative AI model synthesizes speech from text and can be used for various speech tasks. Voicebox generates realistic and expressive voices and allows attributes such as tone, style or accent to be adopted from audio files.

According to Meta, Voicebox outperforms existing speech synthesis models such as Microsoft's VALL-E in terms of speech quality and naturalness. "As the first versatile, efficient model that successfully performs task generalization, we believe Voicebox could usher in a new era of generative AI for speech.," Meta said. Due to the risk of misuse, the team has also developed a system for recognizing synthesized speech and has no plans to release Voicebox for the time being.

Video: Meta

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Google DeepMind, OpenAI, and Anthropic will give the UK government access to their AI models for research and security purposes, Prime Minister Rishi Sunak announced at London Tech Week on Monday. The UK aims to become a global hub for AI safety regulation.

Plans include a global AI security summit and a £100m Foundation Model Taskforce. OpenAI and Anthropic recently established their European headquarters in the UK.

"AI is surely one of the greatest opportunities before us," Sunak said. But the technology needs to be developed and deployed safely, he said, "I know people are concerned."

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Synthesia, an AI platform for synthetic media, has raised $90 million, bringing its valuation to $1 billion. The round was led by Accel and included Nvidia and other investors such as Kleiner Perkins, GV, FirstMark Capital and MMC.

Synthesia is a London-based company that applies artificial intelligence to video production. The technology allows users to create digital avatars that can deliver presentations or training videos in multiple languages.

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