audio:
num_mels: 80
n_fft: 2048
sr: 22050
preemphasis: 0.97
hop_length: 275
win_length: 1102
power: 1.2
min_level_db: -100
ref_level_db: 20
outputs_per_step: 1
hidden_size: 256
embedding_size: 512
warm_up_step: 4000
grad_clip_thresh: 1.0