> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tryflowy.ai/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Flowy is a node-based AI creative platform: you generate images, video, audio, 3D and vector on an infinite Canvas, refine on the Studio timeline, and export or publish from the same project.
> Prefer the Flowy MCP server (https://mcp.tryflowy.ai/mcp) or the REST API at https://apis.tryflowy.ai/v1 for programmatic work. Install with `flowy mcp install` from the @flowy/cli package.
> Credits are workspace-scoped. Generations reserve credits on start and only deduct on success, so failed runs refund automatically.

# Change Voice

> Swap the voice in any video or audio clip, timing and delivery untouched.

Change Voice replaces the voice in an existing video or audio clip with one of twelve preset voices, while the original timing and delivery stay intact.

<Frame>
  <img src="https://mintcdn.com/flamapp/F3HzOSEZ0flnKi-X/images/tools/change-voice.png?fit=max&auto=format&n=F3HzOSEZ0flnKi-X&q=85&s=610919130949894f011a6683cdddfcf7" alt="Change voice" width="2880" height="1800" data-path="images/tools/change-voice.png" />
</Frame>

## Where to find it

Open **/audio/change-voice** directly, press <kbd>⌘</kbd> <kbd>K</kbd> and search "Change Voice", or find it in the **Audio** area of the left sidebar.

## What you need

| Input     | Required | Notes                                            |
| --------- | -------- | ------------------------------------------------ |
| Source    | Yes      | The video or audio whose voice you want to swap. |
| New voice | —        | One of 12 preset voices. Default **Rachel**.     |

The preset voices: Rachel (calm female), Aria (expressive female), Sarah (soft female), George (warm male), Charlie (energetic male), Callum (deep male), Charlotte (sultry female), Alice (confident female), Matilda (friendly female), Brian (deep male), Daniel (authoritative male), Lily (warm female).

## What it costs

8 credits per second, billed per minute of audio and rounded up. This figure is an estimate. Actual billing can vary with upstream rounding. Flowy shows a live estimate in the panel before you run. The backend's pricing is always authoritative.

## Related

* [Voiceover](/tools/voiceover)
* [Translation](/tools/translation)
* [Lipsync Studio](/tools/lipsync-studio)