Free AI Audio Generator — One Prompt, Studio-Grade Sound
Describe a scene and Seed Audio 1.0 returns the finished mix: multiple characters talking, background music, ambience, and sound effects — up to about two minutes per generation, with Extend to keep the story going in the same voices.
Generate audio freeWhy creators use Seedaudio for scene audio
Hear what one prompt can do
Frequently asked questions
An AI audio generator turns a text prompt into sound. Seedaudio is built on ByteDance Seed Audio 1.0, which goes beyond single voices or clips: one prompt returns a complete scene — multi-character dialogue, background music, ambience, and sound effects mixed together.
A single generation runs up to about two minutes. For longer stories, use Extend: it continues the scene from where it stopped and keeps every character voice consistent with the earlier part.
Yes. Attach up to 3 reference audio clips and refer to them as @Audio1–@Audio3 in your prompt to cast specific voices (zero-shot voice cloning), or upload one character image and the model infers a fitting voice. The two methods are mutually exclusive in a single generation.
Inside a scene, yes — background music, ambience, and effects are part of the mix. If you need standalone assets, Seedaudio also offers Sonilo Text-to-Music for pure instrumentals (1–360 seconds) and Mirelo SFX for individual sound effects.
Scene audio focuses on dialogue, music beds, ambience, and effects. For full songs with vocals, use our Song Generation tool — you provide the lyrics and it returns a sung track. See the AI Song Generator page.
Signing up is free and comes with free credits, so you can generate your first scenes at no cost. When you need more, paid plans top up your credit balance — see the pricing page for details.
Yes. Content you generate on Seedaudio can be downloaded and used in commercial projects — videos, podcasts, games, ads, and client work.
Every generation is saved to your library, where you can download the audio file or share it via a public page (each work gets its own /audio/{id} link anyone can open).
TTS reads your text aloud in one voice. A scene generator directs a whole production: several characters interacting, music underneath, ambience around them, and effects on cue. For plain narration we also offer Seed Speech 2.0 TTS with 40 voices across 10 languages.
Describe the setting, the characters and what they say or feel, plus the music mood and any key sound effects. Concrete beats vague: "rain on a tin roof, two friends whispering, slow piano" outperforms "sad scene". Our prompting guide has full patterns and examples.