Seed Audio: Voice, Speech & Sound Effects in One Pass

Seed Audio is ByteDance's audio generation model — Doubao audio generation 1.0. From a single written prompt it produces multi-character dialogue, non-verbal sounds, and sound effects together as one finished take, turning audio production from an editing job back into a writing one. On AIGenTools you run it right in your browser.

You write a prompt describing the scene: who speaks, what they say, the mood, and any sound effects. Seed Audio interprets that brief and generates every layer in a single pass, arranging timing and transitions on its own so the result comes back already mixed and in sync — no multitrack work afterward.

Text to speech reads words aloud in one voice. Seed Audio directs an entire scene: several characters trading lines, laughs and sighs between them, room ambience, and sound effects, all generated together. The difference is scope — a finished soundscape instead of a bare voice track.

Plenty — audiobooks, podcasts, radio drama, video voiceovers, explainers, ads, and brand audio. Seed Audio fits any project where you would normally script lines, record several voices, and mix in effects, because it collapses all of that into one prompt and one render. It is just as useful for quick concept pieces — a sample ad read, a game scene, or a sonic identity for a brand — as it is for finished, ready-to-publish work.

Seed Audio centers on English and Chinese, and its preset voices reach further — some also handle Japanese, Spanish, Portuguese, and Indonesian. On top of language, you can shape each delivery with speed, volume, and pitch, so a line can be slowed for gravity or lifted for energy.

Yes. Upload up to three short reference clips and Seed Audio reproduces the voice from the audio — matching its timbre and delivery — with no training step or sample preparation. If you don't have a clip on hand, describe the voice in words and it generates one to fit.

Yes. Alongside the dialogue, Seed Audio creates sound effects and room ambience, and layers them into the same take. That is the point of the model: a complete, mixed soundscape from one prompt rather than narration you still have to edit.

That is built in. Voice identity is held steady across long pieces, so a narrator or character stays recognizable from the first chapter to the last without drifting or breaking character. This solves the usual long-form headache, where a voice subtly shifts between sessions and you end up re-recording to match. It makes formats like audiobooks, serialized fiction, and multi-episode shows far easier to keep coherent from end to end.

Be specific in the prompt. Name each speaker and give their tone, lay out the lines in order, and call out key sound effects where they should land. Clear, well-paced descriptions give it the most to work with and produce the most natural, film-like takes.

Yes. Finished audio downloads as MP3 or WAV, ready to drop straight into a video, podcast, app, or game. AIGenTools does not train on your prompts, uploads, or generated audio, and deleting a result removes both the upload and the output.