MixLab

FFT spectrum bins + band energies

Returns paired frequency/magnitude arrays plus 7-band energies and spectral descriptors (centroid, rolloff, flatness). For spectrum-analyzer UIs and tonal-balance diagnosis beyond the harshness/muddiness labels.

post/v1/mixlab/spectrum

Request

  • Base URL: https://audiolab.tools
  • URL: https://audiolab.tools/v1/mixlab/spectrum
  • Auth: HTTP bearer

Request body

urlstring uri
objectPathstring

Path returned by /api/upload-url, for audio that has no public URL. Readable only by the key that uploaded it, and kept for about an hour so a follow-up question about the same file does not need a re-upload.

Example request

{
  "url": "https://audiolab.tools/reference/is-original.mp3"
}

Response

Spectrum data complete.

sampleRateinteger required
spectralCentroidHznumber
spectralRolloffHznumber
spectralFlatnessnumber

Changes

No recorded changes to this operation across all 1 revision of this API.