preprocessor_config.json

{
  "dither": 0.0,
  "feature_extractor_type": "Gemma4AudioFeatureExtractor",
  "feature_size": 128,
  "fft_length": 512,
  "fft_overdrive": false,
  "frame_length": 320,
  "hop_length": 160,
  "input_scale_factor": 1.0,
  "max_frequency": 8000.0,
  "mel_floor": 0.001,
  "min_frequency": 0.0,
  "padding_side": "right",
  "padding_value": 0.0,
  "per_bin_mean": null,
  "per_bin_stddev": null,
  "preemphasis": 0.0,
  "preemphasis_htk_flavor": true,
  "return_attention_mask": true,
  "sampling_rate": 16000
}