RenderFlow AI

ByteDance prompt-guided audio model

Seed Audio 1.0 is the prompt-first voice canvas

Use it when the voice performance depends on scene, atmosphere, escalation, and delivery rather than choosing a preset speaker.

text to audio 30 credits per generation.
Try Seed Audio 1.0 Compare voice models

Voice Generation

Generate expressive speech and audio from a detailed text prompt with direct speed, volume, pitch, and sample-rate controls.

30 credits per generation.

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Your generated audio will appear here.

Enter a prompt and click 'Generate' to start.

Examples

Seed Audio 1.0 voice example

Listen to the generated result, then review the script, direction, and settings used to make it.

Seed Audio 1.0

Last-minute goal call

A last-minute goal call that builds from controlled commentary to a full shout, with stadium atmosphere.

Listen for
The escalation inside one take, crowd bed reacting to the goal, and intelligibility at the shout.
Settings
MP3 · 44.1 kHz · Speed 1 · Volume 1 · Pitch 0
View script and direction

Prompt: A packed football stadium at night, 60,000 fans roaring, rain drumming on the stands, a commentator leaning into his microphone in the broadcast booth, his voice rising with the attack. He calls the final minute of the match: "Here comes Mercer, past one defender... past TWO! He's got space on the edge of the box — Mercer SHOOTS— GOAL! GOAL! Unbelievable! In the ninety-first minute! The rookie has done it — the stadium is on its feet!" Excited sports commentator voice, breathless and electric, starting controlled and building to a full-throated shout, crowd noise surging underneath, no music.

Model context

Why simplify Seed Audio 1.0 on RenderFlow AI?

Seed Audio 1.0 can expose reference audio and image inputs, but the RenderFlow AI page intentionally keeps the workflow simpler: write the prompt, generate MP3, and judge the performance.

That makes it easier to use for sports calls, dramatic reads, ambience-backed speech, and sound-directed moments where the prompt carries the creative direction.

Model strengths

Performances Seed Audio 1.0 can direct

Use it when the voice performance depends on scene, atmosphere, escalation, and delivery rather than choosing a preset speaker.

  • Prompt-described speech scenes where background sound, emotion, and pacing need to be part of the take.
  • Escalating performances such as commentary, announcements, story moments, and dramatic narration.
  • Audio concepts where fixed MP3 output is enough for web, social, and quick review workflows.

Prompt guide

Writing a Seed Audio performance prompt

Set the scene first

Describe the room, crowd, weather, distance, microphone, or background sound before the spoken line.

Write the exact words

Put the script inside the prompt and use punctuation to guide pauses, urgency, and emphasis.

Describe the arc

State whether the delivery starts calm, builds, whispers, laughs, or peaks at a shout.

Review intelligibility

Listen for words surviving emotion and ambience, not just whether the voice sounds exciting.

Frequently asked questions

Why does Seed Audio 1.0 output MP3 here?

RenderFlow AI fixes the public workflow to MP3 so the page stays simple and web-ready.

What prompts work best?

Prompts that combine scene, speaker, exact script, delivery arc, and background sound give the model clearer direction.

Is Seed Audio 1.0 a preset voice model?

No. It is better treated as prompt-guided audio generation rather than a fixed list of named voices.

When should I choose Eleven V3 instead?

Choose Eleven V3 when a preset production voice and voice-control sliders matter more than scene-level audio prompting.