---
title: "Export Generation Audio"
method: GET
path: "/history/{generation_id}/export-audio"
---

# Export Generation Audio

`GET /history/{generation_id}/export-audio`

## 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/history/{generation_id}/export-audio`
- Auth: none declared

Export only the audio file from a generation, optionally re-encoded.

## Path parameters

- `generation_id` string, required

## Query parameters

- `format` string, nullable: Export container: wav (default, stored bytes verbatim), mp3 (192 kbps CBR / 44.1 kHz, ACX-ready) or opus.
- `loudness` boolean: Apply EBU R128 loudness normalization (-18 LUFS / -3 dBTP, the Audible/ACX window) before encoding. Opt-in, and idempotent by measurement: audio already at target is returned unchanged, so re-exporting never stacks gain or adds a second lossy generation.

## 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)