{
 "classes": [
  "music",
  "speech"
 ],
 "mode": "stream",
 "stride": 4,
 "sampleRate": 16000,
 "nFft": 400,
 "hop": 320,
 "nMels": 64,
 "heldOut": [
  "h20",
  "h12"
 ],
 "balancedRecall": 0.9983
}