# Convert audio - Workflow node | Docs - nodulz

Source: https://nodulz.com/docs/nodes/convert_audio

Language: en

Convert to MP3, WAV, OGG, FLAC or M4A and configure audio settings.

## Usage and specifics

Supply source audio and conversion, trim, volume or metadata settings. Processing requires backend media tools. Keep format and MIME type consistent when mapping.

Technical type : `convert_audio`. Runtime : `nodulz`.

## Credentials and prerequisites

This node defines no dedicated external credential. Remote sources or execution targets may still need their own access credentials.

See the [credentials guide](/docs/credentials) if a remote source or execution target requires access.

## Parameters

Names below are technical keys. Defaults are not a ready-to-run configuration: complete fields required by your operation. Paths containing [] describe list items; some fields depend on the selected mode.

| Parameter | Type | Default | Values / limits |
| --- | --- | --- | --- |
| `input` | `string` | `""` | - |
| `format` | `enum` | `"mp3"` | `mp3`, `wav`, `ogg`, `flac`, `m4a` |
| `sampleRate` | `number` | `44100` | - |
| `channels` | `number` | `2` | -; ≥ 1, ≤ 2 |
| `bitrate` | `number` | `192` | -; ≥ 32, ≤ 320 |

## Configuration help

| Setting | Purpose and guidance |
| --- | --- |
| `input`<br>Audio source | HTTP(S) URL, base64, data URL or complete HTTP or audio node output. Local files are not accepted. |

## Initial configuration

Initial catalog configuration example, to adapt before running. Keep secrets in credentials.

```json
{
  "input": "",
  "format": "mp3",
  "sampleRate": 44100,
  "channels": 2,
  "bitrate": 192
}
```

## Verification

Test with representative data. Check node output in the inspector and logs, then use editor mapping for downstream fields. A trigger test with a simulated payload does not validate external service delivery.

See also : [Expressions and data](/docs/expressions), [Executions](/docs/executions), [Node catalog](/docs/nodes).

## Explore further

- [Features - nodulz](https://nodulz.com/product/overview)
- [Node catalog - nodulz](https://nodulz.com/product/catalog)
- [MCP server - nodulz](https://nodulz.com/product/mcp)
- [Pricing - nodulz](https://nodulz.com/pricing)
- [Use cases and workflow automation - nodulz](https://nodulz.com/use-cases)
- [Choose what your workflows can do. - nodulz](https://nodulz.com/compare)
- [Documentation - nodulz](https://nodulz.com/docs)