n8n‑audio‑tools

Two minimalist audio nodes powered by FFmpeg:

| Node | What it does | Key params |
| ----------------------- | ------------------------------- | ---------------------------------- |
| audio.concatWithGap | file1 → _(silence)_ → file2 | gapDuration, fadeIn, fadeOut |
| audio.mergeTracks | file1 + _(delayed)_ file2 | offset, file2Gain |

Installation

``bash
npm install n8n-nodes-audio-tools
`

Then add to your .n8n/n8n.config.js:

`js
module.exports = {
nodes: [require("n8n-nodes-audio-tools")],
};
`

Requirements

- _FFmpeg_ must be available in PATH (or set the FFMPEG_PATH env var).

Examples

`ts
// Concat 1.5 s silence between intro & outro
{
"file1": "/tmp/intro.wav",
"file2": "/tmp/outro.wav",
"gapDuration": 1.5,
"outputFormat": "mp3"
}

// Overlay commentary 3 s after music, -7 dB
{
"file1": "/tmp/music.mp3",
"file2": "/tmp/commentary.mp3",
"offset": 3,
"file2GainDb": -7
}
``

License

MIT