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

npm install n8n-nodes-audio-tools

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

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

Requirements

• FFmpeg must be available in PATH (or set the FFMPEG_PATH env var).

Examples

// 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