> For the complete documentation index, see [llms.txt](https://doc.duaer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.duaer.com/getting-started/freesound.md).

# Freesound sound effects in Duaer

In Duaer: Freesound: Creative Commons sound effects and field recordings with MP3 previews and license. One successful search uses 1 credit.
## What you get

Duaer Freesound sound effects searches Freesound for Creative Commons sounds and returns MP3 previews with the license and author. Duaer holds the upstream API key; you only send your Duaer key.

Pick Duaer Data → Freesound sound effects in the node creator, or open the [data market](/getting-started/data-market.md). Related: [Jamendo music](/getting-started/jamendo.md), [Wikimedia Commons media](/getting-started/commons-media.md).

## When to use it

- Find a door knock sound for a video.
- Find short ambient rain loops.

## When not to use it

- Music tracks. Use [Jamendo music](/getting-started/jamendo.md).
- Audio from Wikimedia Commons. Use [Wikimedia Commons media](/getting-started/commons-media.md).

## Search on the canvas

1. Open the node creator and pick Duaer Data → Freesound sound effects.
2. Fill Words (such as rain on window). Optional: Max Seconds (30).
3. Limit defaults to 10, max 20. Execute.

A search uses 1 credit only when it returns rows. No rows, wrong input, or an upstream failure uses 0.

## Call the API

- GET https://api.duaer.com/v1/data/freesound?words=rain
- Authorization: Bearer <Duaer key>

The call skill below matches Copy skill in the Duaer data market, with parameters, examples, and result fields.

## Call skill

Same text as Copy skill.

```
---
name: duaer-freesound
description: >-
  Duaer Freesound sound effects. Freesound: Creative Commons sound effects and field recordings with MP3 previews and license.
  One successful search uses 1 Duaer credit.
---

# Duaer Freesound sound effects

Duaer Freesound sound effects searches Freesound for Creative Commons sounds and returns MP3 previews with the license and author. Duaer holds the upstream API key; you only send your Duaer key.

## When to use

- Find a door knock sound for a video.
- Find short ambient rain loops.

## When not to use

- Music tracks. Use https://skills.duaer.com/jamendo.md.
- Audio from Wikimedia Commons. Use https://skills.duaer.com/commons-media.md.

## Call

`GET https://api.duaer.com/v1/data/freesound?words=rain`

Header: `Authorization: Bearer <Duaer key>`

Use an account key or a model API key.

Get a Duaer key: https://skills.duaer.com/keys.md

## Parameters

Provide `words`.

- `words` — Words describing the sound, such as rain on window.
- `maxSeconds` — Optional. Longest duration in seconds, 1 to 3600.
- `limit` — Optional. Rows to return, from 1 to 20. Default 10.

## Examples

- `GET https://api.duaer.com/v1/data/freesound?words=rain` — rain sounds.
- `GET https://api.duaer.com/v1/data/freesound?words=door%20knock&maxSeconds=5` — door knocks up to 5 seconds.

## Result

The response is `{ "items": [...] }`. Each item has `source`, `title`, `url`, and `summary`, plus:

- `freesoundId`, `name`, `author`, `durationSeconds` — sound, author, and length.
- `previewUrl`, `tags`, `description` — high-quality MP3 preview, tags, and description.
- `license`, `licenseUrl`, `downloads`, `rating` — Creative Commons license and popularity.

Credit the author when the license is CC BY or CC BY-NC.

Fields without a value are left out.

## Credits

A search that returns at least one row uses 1 credit.
An empty search, a search that finds nothing, or a failed search uses 0.
Wrong input returns 400 with a message and uses 0.
No remaining credits returns 402 and does not search.
A missing key returns 401.

## Related

- https://skills.duaer.com/jamendo.md — Duaer Jamendo music
- https://skills.duaer.com/commons-media.md — Duaer Wikimedia Commons media

```
## Questions

### How many credits does a Freesound sound effects search use in Duaer?

One credit when Duaer returns rows. A search with no rows or an error uses 0.

### Can I use Duaer Freesound sounds commercially?

CC0 and CC BY allow commercial use (CC BY needs credit). CC BY-NC is non-commercial only. Duaer returns each sound license.

## Related

- [Jamendo music in Duaer](https://doc.duaer.com/getting-started/jamendo.md)
- [Wikimedia Commons media in Duaer](https://doc.duaer.com/getting-started/commons-media.md)