---
title: "Preview Effects"
method: POST
path: "/effects/preview/{generation_id}"
---

# Preview Effects

`POST /effects/preview/{generation_id}`

## Request

- Base URL: `https://api.voicelabs.now` (the document declares no server; this is the origin it was published from)
- URL: `https://api.voicelabs.now/effects/preview/{generation_id}`
- Auth: none declared

Apply effects to a generation's clean audio and stream back without saving.

## Path parameters

- `generation_id` string, required

## Request body

- ApplyEffectsRequest: Request to apply effects to an existing generation.
  - `effects_chain` EffectConfig[], required
    - `type` string, required
    - `enabled` boolean
    - `params` object
  - `source_version_id` string, nullable: Version to use as source audio (defaults to clean/original)
  - `label` string, nullable: Label for this version (auto-generated if omitted)
  - `set_as_default` boolean: Set this version as the default

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/voicelabs/apis/voicebox-api.md) · [All operations](https://skmtc.dev/voicelabs/apis/voicebox-api/llms.txt) · [OpenAPI document](https://skmtc.dev/voicelabs/apis/voicebox-api/revisions/a7a37d1fc02f?raw)