{
  "test_date": "2026-10-17",
  "conversion_page": "https://midilot.com/wav-to-midi",
  "converter_commit": "3095ed4c97b4911d4bc3203f9692e017d6d63ebe",
  "method": "Production Chrome native file chooser, Convert to MIDI and native download for successful run. Independent mido 1.3.3 inspection; exact input regeneration and samplewise checks in inspect-stereo.py.",
  "input_generation": {
    "topic": "Input channels and local mono averaging; material for an approved future tutorial or existing-page maintenance only",
    "source": "Own generated stereo tones, not human recordings",
    "sample_rate": 44100,
    "frames": 44100,
    "duration_formula": "44100 / 44100",
    "duration_seconds": 1,
    "channels": 2,
    "sample_bits": 16,
    "frequency_hz": 261.625565,
    "sample_rule": "round(0.5 * min(1,i/220,(44099-i)/220) * sin(2*pi*261.625565*i/44100) * 32767)",
    "files": [
      {
        "file": "stereo-in-phase.wav",
        "sha256": "51e191b6a9ac1e524c85bf9292c23532fb36d15821a0f9a1ca0f8e231a972413",
        "bytes": 176444,
        "right_channel_multiplier": 1
      },
      {
        "file": "stereo-opposite-phase.wav",
        "sha256": "a28876aebe875cdff60277365da17efb728874b71e60447e9927b22b204ce1fe",
        "bytes": 176444,
        "right_channel_multiplier": -1
      }
    ],
    "new_page_permission": false
  },
  "results": [
    {
      "input": {
        "file": "stereo-in-phase.wav",
        "sha256": "51e191b6a9ac1e524c85bf9292c23532fb36d15821a0f9a1ca0f8e231a972413",
        "bytes": 176444,
        "right_channel_multiplier": 1,
        "path": "/samples/stereo-in-phase.wav"
      },
      "ui": {
        "download": "stereo-in-phase-notes.mid",
        "resultHidden": false,
        "rows": [
          [
            "1",
            "C4",
            "0.00 s",
            "0.84 s"
          ]
        ],
        "status": "\n          Ready. Valid Standard MIDI File (format 0, 1 track, 480 ticks per quarter note).\n        "
      },
      "averaged_pcm_peak": 16383.0,
      "average_formula": "(left + right) / 2",
      "left_pcm_peak": 16383,
      "output": {
        "path": "/samples/stereo-in-phase-notes.mid",
        "bytes": 56,
        "sha256": "d1cb66d6734dd551d186967ce73806776090bbf53d57520161893fd9df5de5bb",
        "format": 0,
        "tracks": 1,
        "ppq": 480,
        "notes": [
          {
            "midi": 60,
            "start_seconds": 0,
            "end_seconds": 0.8354166666666667,
            "duration_seconds": 0.8354166666666667,
            "velocity": 88
          }
        ],
        "raw_messages": [
          {
            "elapsed_seconds": 0,
            "message": {
              "type": "track_name",
              "name": "Local Melo",
              "time": 0
            }
          },
          {
            "elapsed_seconds": 0,
            "message": {
              "type": "set_tempo",
              "tempo": 500000,
              "time": 0
            }
          },
          {
            "elapsed_seconds": 0,
            "message": {
              "type": "note_on",
              "time": 0,
              "channel": 0,
              "note": 60,
              "velocity": 88
            }
          },
          {
            "elapsed_seconds": 0.8354166666666667,
            "message": {
              "type": "note_off",
              "time": 0.8354166666666667,
              "channel": 0,
              "note": 60,
              "velocity": 0
            }
          },
          {
            "elapsed_seconds": 0.8354166666666667,
            "message": {
              "type": "end_of_track",
              "time": 0
            }
          }
        ]
      }
    },
    {
      "input": {
        "file": "stereo-opposite-phase.wav",
        "sha256": "a28876aebe875cdff60277365da17efb728874b71e60447e9927b22b204ce1fe",
        "bytes": 176444,
        "right_channel_multiplier": -1,
        "path": "/samples/stereo-opposite-phase.wav"
      },
      "ui": {
        "resultHidden": true,
        "rows": [],
        "status": "\n          No clear melody notes were detected. Try a clean, louder single-note recording.\n        "
      },
      "averaged_pcm_peak": 0.0,
      "average_formula": "(left + right) / 2",
      "left_pcm_peak": 16383,
      "output": null,
      "no_midi_download_available": true
    }
  ],
  "interpretation": "Opposite samples cancel exactly in the averaging step used by this implementation. The live opposite-phase run returned the documented error; no empty or invented MIDI is provided.",
  "accuracy_rate": null,
  "limits": "Two constructed synthetic inputs only; not a result on songs, voices or separated stems. No algorithm repair."
}