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          "metrics": {
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    "license": "apache-2.0",
    "source_url": "https://huggingface.co/litert-community/Zipformer-medium-CR-CTC-LiteRT",
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    "Input is host-computed kaldi-fbank [1,1600,80] with the waveform kept in [-1,1] scale, plus 4 additive attention-bias inputs (0 = valid, -1000 = pad; one per downsampling rate) — HF card 'How it runs'.",
    "Output is raw CTC logits at 25 Hz (blank id 0): LogSoftmax is deliberately NOT in the graph (its REDUCE_MAX lowering fails the on-device GPU compile); greedy CTC is argmax-invariant — HF card.",
    "Fixed 16 s window; shorter audio is padded with log(1e-10) fbank frames — HF card."
  ],
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}