Audio hum filter

Open Audio hum filter on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "audio-hum-filter",
  "category": "media-tools",
  "built": true,
  "requirements": "One recording up to 256 MiB and 10 minutes; 1 to 10 harmonics, depth 3 to 60 dB, Q 5 to 100. WAV is read with every sample intact; other formats are decoded by your browser at 48 kHz. Everything is processed on your device and nothing is uploaded. Download: WAV in the source format or the format you choose, a JSON report and a CSV spectrum up to 1,000 Hz before and after.",
  "implementation": {
    "fields": [
      {
        "key": "fundamental",
        "label": "Mains frequency",
        "value": "auto-50",
        "type": "select",
        "values": [
          "auto-50",
          "auto-60",
          "50",
          "60"
        ],
        "labels": {
          "50": "Fixed 50 Hz",
          "60": "Fixed 60 Hz",
          "auto-50": "Detect near 50 Hz",
          "auto-60": "Detect near 60 Hz"
        }
      },
      {
        "key": "harmonics",
        "label": "Harmonics to remove",
        "value": "5",
        "type": "number",
        "min": 1,
        "max": 10,
        "step": 1
      },
      {
        "key": "depth",
        "label": "Notch depth (dB)",
        "value": "30",
        "type": "number",
        "min": 3,
        "max": 60,
        "step": 1
      },
      {
        "key": "q",
        "label": "Notch Q",
        "value": "30",
        "type": "number",
        "min": 5,
        "max": 100,
        "step": 1
      },
      {
        "key": "encoding",
        "label": "WAV sample format",
        "value": "match",
        "type": "select",
        "values": [
          "match",
          "pcm16",
          "pcm24",
          "float32"
        ],
        "labels": {
          "match": "Same as source",
          "pcm16": "16-bit PCM",
          "pcm24": "24-bit PCM",
          "float32": "32-bit float"
        }
      }
    ],
    "registrationFamily": "audio-dsp-dynamics-filters",
    "presentation": "metrics",
    "files": true,
    "accept": ".wav,.mp3,.m4a,.aac,.flac,.ogg,.oga,.opus,.webm,audio/*",
    "maxFileBytes": 268435456,
    "input": false,
    "inputErrorCode": "AUDIO_DSP_DYNAMICS_FILTERS_TOO_LONG",
    "note": "Runs locally in your browser. Removes 50 or 60 Hz hum and up to 10 harmonics from one recording up to 10 minutes.",
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Audio file",
      "placeholder": "Choose a recording with hum",
      "help": "Notches are placed on the mains frequency and its harmonics. Up to 1,000,000 characters. Review the settings before running.",
      "helpParts": [
        "Notches are placed on the mains frequency and its harmonics.",
        "Up to 1,000,000 characters.",
        "Review the settings before running."
      ],
      "action": null
    },
    "mode": "explicit",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

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