{"record":{"id":"3349e86682dafd2e","repo":"babysor/MockingBird","slug":"all-of-the-f0-values-are-0","errorCode":null,"errorMessage":"all of the f0 values are 0.","messagePattern":"all of the f0 values are 0\\.","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"utils/f0_utils.py","lineNumber":90,"sourceCode":"\n    return lpf_x\n\n\ndef convert_continuos_f0(f0):\n    \"\"\"CONVERT F0 TO CONTINUOUS F0\n\n    Args:\n        f0 (ndarray): original f0 sequence with the shape (T)\n\n    Return:\n        (ndarray): continuous f0 with the shape (T)\n    \"\"\"\n    # get uv information as binary\n    uv = np.float32(f0 != 0)\n\n    # get start and end of f0\n    if (f0 == 0).all():\n        logging.warn(\"all of the f0 values are 0.\")\n        return uv, f0\n    start_f0 = f0[f0 != 0][0]\n    end_f0 = f0[f0 != 0][-1]\n\n    # padding start and end of f0 sequence\n    start_idx = np.where(f0 == start_f0)[0][0]\n    end_idx = np.where(f0 == end_f0)[0][-1]\n    f0[:start_idx] = start_f0\n    f0[end_idx:] = end_f0\n\n    # get non-zero frame index\n    nz_frames = np.where(f0 != 0)[0]\n\n    # perform linear interpolation\n    f = interp1d(nz_frames, f0[nz_frames])\n    cont_f0 = f(np.arange(0, f0.shape[0]))\n\n    return uv, cont_f0","sourceCodeStart":72,"sourceCodeEnd":108,"githubUrl":"https://github.com/babysor/MockingBird/blob/28dc5e14f12d7c754612af2fde8e78a4b03f8616/utils/f0_utils.py#L72-L108","documentation":"Error \"all of the f0 values are 0.\" thrown in babysor/MockingBird.","triggerScenarios":"Thrown at utils/f0_utils.py:90 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"28dc5e14f12d7c754612af2fde8e78a4b03f8616","analyzedAt":"2026-08-27T02:26:53.589Z","schemaVersion":2},"datasetVersion":"2026-08-27T03:17:27.898Z"}