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A synthesizer you control by talking to AI.

First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com

Answer 8 · Act 14 · Transact 2 · Score: Not yet scored

Tool inspector

analyze_audio

act imperative

Re-analyze the last render (default), the live output, or the uploaded reference. `source: "recent"` reads the rolling 4 s capture — what a human just played, still there after they released the key — where `source: "scope"` holds 21 ms and reports silence for a note that has ended. `source: "reference"` re-analyzes the retained reference PCM, so a corrected `f0Hz` or a higher `windows` count costs no re-upload and replaces the active reference. render_audio already returns these metrics, so call this only for a fresh look without re-rendering.

Input schema

Property	Type	Required	Description
`source`	string	no	—
`seconds`	number	no	Only for "recent": seconds of capture to analyze, ending now. Default and max 4.
`f0Hz`	number	no	Fundamental for the partials, overriding detection. Only for "scope", "recent" and "reference": a render's PCM is not retained.
`windows`	integer	no	Spectral windows, default 4.
`format`	string	no	Default "json"; "text" adds the same metrics as a compact table.

Raw JSON schema

{
  "type": "object",
  "properties": {
    "source": {
      "type": "string",
      "enum": [
        "scope",
        "recent",
        "last-render",
        "reference"
      ]
    },
    "seconds": {
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 4,
      "description": "Only for \"recent\": seconds of capture to analyze, ending now. Default and max 4."
    },
    "f0Hz": {
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 20000,
      "description": "Fundamental for the partials, overriding detection. Only for \"scope\", \"recent\" and \"reference\": a render's PCM is not retained."
    },
    "windows": {
      "type": "integer",
      "minimum": 4,
      "maximum": 32,
      "description": "Spectral windows, default 4."
    },
    "format": {
      "type": "string",
      "enum": [
        "json",
        "text"
      ],
      "description": "Default \"json\"; \"text\" adds the same metrics as a compact table."
    }
  },
  "additionalProperties": false
}