---
title: "Voice isolation"
method: POST
path: "/v1/voice_isolation"
tags: ["Start generating"]
---

# Voice isolation

`POST /v1/voice_isolation`

This endpoint will start a new task to isolate the voice from the background audio. Audio duration must be greater than 4.6 seconds and less than 3600 seconds.

## Headers

- `X-Runway-Version` '2024-11-06', required

## Request body

- object
  - `audioUri` union, required — A HTTPS URL, Runway or data URI containing an encoded audio. See [our docs](/assets/inputs#audio) on audio inputs for more information.
    - string — A HTTPS URL, Runway upload URI, or base64 data URI (e.g. `data:audio/mp3;base64,...`, up to 16MB) containing an encoded audio. See [our docs](/assets/inputs#audio) on audio inputs for more information.
    - string — A Runway upload URI. See https://docs.dev.runwayml.com/assets/uploads for more information.
    - string — A data URI containing encoded media.
  - `model` 'eleven_voice_isolation', required

## Response `200`

The task that was created.

- object
  - `id` string, uuid, required — The ID of the task that was created. Use this to retrieve the task later.
  - `estimatedCost` object, required — The maximum credits this task may charge. The final amount may be lower after the task completes.
    - `credits` number, required — Estimated cost of the generation in credits.

## Other responses

- `400` — The request was rejected. Inspect `error` or `issues` (when present) and retry with a corrected request.
- `429` — You have exceeded the rate limit for this endpoint.

---

[API](https://skmtc.net/runwayml/apis/runwayml-api.md) · [All operations](https://skmtc.net/runwayml/apis/runwayml-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/runwayml/runwayml-api/revisions/3f3a4647d82f/schema)