Stability AI Brings Text-To-Audio Generation To the Masses
Stability AI today announced the initial public release of its Stable Audio technology, providing anyone with ability to use simple text prompts to generate short audio clips. VentureBeat reports: StableAudio is a new capability, though it is based on many of the same core AI techniques that enable Stable Diffusion to create images. Namely the Stable Audio technology makes use of a diffusion model, albeit trained on audio rather than images, in order to generate new audio clips. "Stability AI is best known for its work in images, but now we're launching our first product for music and audio generation, which is called Stable Audio," Ed Newton-Rex, VP of Audio at Stability AI told VentureBeat. "The concept is really simple, you describe the music or audio that you want to hear in text and our system generates it for you." Newton-Rex is no stranger to the world of computer generated music, having built his own startup called Jukedeck in 2011, which he sold to TikTok in 2019. The technology behind Stable Audio however does not have its roots in Jukedeck, but rather in Stability AI's internal research studio for music generation called Harmonai, which was created by Zach Evans. Stable Audio works directly with raw audio samples for higher quality output. The model was trained on over 800,000 pieces of licensed music from audio library AudioSparks. [...] As a diffusion model, Evans said that the Stable Audio model has approximately 1.2 billion parameters, which is roughly on par with the original release of Stable Diffusion for image generation. The text model used for prompts to generate audio was all built and trained by Stability AI. Evans explained that the text model is using a technique known as Contrastive Language Audio Pretraining (CLAP). As part of the Stable Audio launch, Stability AI is also releasing a prompt guide to help users with text prompts that will lead to the types of audio files that users want to generate. "Stable Audio will be available both for free and in a $12/month Pro plan," notes VentureBeat. "The free version allows 20 generations per month of up to 20 second tracks, while the Pro version increases this to 500 generations and 90 second tracks."
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