n_mels: 40

feature_extractor: !new:speechbrain.lobes.features.Fbank
    n_fft: 400
    n_mels: !ref <n_mels>

feature_scaler: !new:custom.FeatureScaler
    num_in: !ref <n_mels>
    scale: 0.5

normalizer: !new:speechbrain.processing.features.InputNormalization
    norm_type: global

modules:
    normalizer: !ref <normalizer>
    feature_scaler: !ref <feature_scaler>

pretrainer: !new:speechbrain.utils.parameter_transfer.Pretrainer  
    loadables:
        normalizer: !ref <normalizer>