{
  "slug": "audio-normalize",
  "name": "gizza-ai/audio-normalize",
  "version": "0.1.0",
  "title": "Normalize Audio Loudness Online — gizza.ai",
  "description": "Level any audio file to a standard loudness (LUFS) right in your browser — -14 for Spotify/YouTube, -16 for podcasts. Runs locally, nothing is uploaded, free.",
  "tags": [
    "audio",
    "normalize",
    "loudness",
    "lufs",
    "volume",
    "level",
    "podcast",
    "spotify"
  ],
  "category": "audio",
  "urls": {
    "page": "https://gizza.ai/tools/audio-normalize/",
    "markdown": "https://gizza.ai/tools/audio-normalize/index.md",
    "descriptor": "https://gizza.ai/tools/audio-normalize/tool.json",
    "deep_link_example": "https://gizza.ai/tools/audio-normalize/?url=https://example.com/input&lufs=-14&format=mp3"
  },
  "cli": "gizza tool audio-normalize 'url=https://example.com/input' 'lufs=-14' 'format=mp3'",
  "tool": {
    "description": "Level an audio file to a standard loudness using EBU R128 loudnorm (single pass, true peak -1.5 dBTP, loudness range 11 LU). Provide either url (HTTP/HTTPS) or ref (id from a prior tool call). lufs sets the target: -14 for Spotify/YouTube (default), -16 for podcasts, -23 for EU broadcast. Output is re-encoded to mp3 (192 kbps), wav, ogg, flac or m4a.",
    "parameters": {
      "additionalProperties": false,
      "oneOf": [
        {
          "required": [
            "url"
          ]
        },
        {
          "required": [
            "ref"
          ]
        }
      ],
      "properties": {
        "format": {
          "default": "mp3",
          "description": "Output audio format. Default mp3 (192 kbps).",
          "enum": [
            "mp3",
            "wav",
            "ogg",
            "flac",
            "m4a"
          ],
          "type": "string"
        },
        "lufs": {
          "default": -14.0,
          "description": "Target integrated loudness in LUFS: -14 for Spotify/YouTube (default), -16 for podcasts, -23 for EU broadcast.",
          "maximum": -5,
          "minimum": -70,
          "type": "number"
        },
        "ref": {
          "description": "Reference id from a prior tool call. Use either url or ref.",
          "type": "string"
        },
        "url": {
          "description": "Audio URL (HTTP/HTTPS). Use either url or ref.",
          "type": "string"
        }
      },
      "type": "object"
    }
  }
}