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PaddleSpeech/examples/librispeech/asr0/conf/deepspeech2_online.yaml

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# https://yaml.org/type/float.html
###########################################
# Data #
###########################################
train_manifest: data/manifest.train
dev_manifest: data/manifest.dev-clean
test_manifest: data/manifest.test-clean
min_input_len: 0.0
max_input_len: 30.0 # second
min_output_len: 0.0
max_output_len: .inf
min_output_input_ratio: 0.00
max_output_input_ratio: .inf
###########################################
# Dataloader #
###########################################
batch_size: 15
mean_std_filepath: data/mean_std.json
unit_type: char
vocab_filepath: data/lang_char/vocab.txt
augmentation_config: conf/augmentation.json
random_seed: 0
spm_model_prefix:
spectrum_type: linear
feat_dim:
target_sample_rate: 16000
max_freq: None
n_fft: None
stride_ms: 10.0
window_ms: 20.0
delta_delta: False
dither: 1.0
use_dB_normalization: True
target_dB: -20
random_seed: 0
keep_transcription_text: False
sortagrad: True
shuffle_method: batch_shuffle
num_workers: 0
############################################
# Network Architecture #
############################################
num_conv_layers: 2
num_rnn_layers: 3
rnn_layer_size: 2048
rnn_direction: forward
num_fc_layers: 2
fc_layers_size_list: 512, 256
use_gru: False
blank_id: 0
###########################################
# Training #
###########################################
n_epoch: 50
accum_grad: 4
lr: 1.0e-3
lr_decay: 0.83
weight_decay: 1.0e-6
global_grad_clip: 5.0
log_interval: 100
checkpoint:
kbest_n: 50
latest_n: 5