readme: ---
  tags:
  - espnet
  - audio
  - automatic-speech-recognition
  language: en
  datasets:
  - librimix
  license: cc-by-4.0
  ---
  
  ## ESPnet2 ASR model 
  
  ### `espnet/simpleoier_librimix_asr_train_asr_transformer_multispkr_raw_en_char_sp`
  
  This model was trained by simpleoier using librimix recipe in [espnet](https://github.com/espnet/espnet/).
  
  ### Demo: How to use in ESPnet2
  
  Follow the [ESPnet installation instructions](https://espnet.github.io/espnet/installation.html)
  if you haven't done that already.
  
  ```bash
  cd espnet
  git checkout 28695114f2771ac3d2a9cc0b5fb30a2c3262e49a
  pip install -e .
  cd egs2/librimix/asr1
  ./run.sh --skip_data_prep false --skip_train true --download_model espnet/simpleoier_librimix_asr_train_asr_transformer_multispkr_raw_en_char_sp
  ```
  
  <!-- Generated by scripts/utils/show_asr_result.sh -->
  # RESULTS
  ## Environments
  - date: `Thu Nov 10 14:58:09 EST 2022`
  - python version: `3.9.13 (main, Aug 25 2022, 23:26:10)  [GCC 11.2.0]`
  - espnet version: `espnet 202209`
  - pytorch version: `pytorch 1.12.1`
  - Git hash: `b3c185d5d707bb385b74f42df2cc59bcf7d7e754`
    - Commit date: `Wed Nov 9 22:00:30 2022 -0500`
  
  ## asr_train_asr_transformer_multispkr_raw_en_char_sp
  ### WER
  
  |dataset|Snt|Wrd|Corr|Sub|Del|Ins|Err|S.Err|
  |---|---|---|---|---|---|---|---|---|
  |decode_multi_asrtrue_lm_lm_train_lm_transformer_en_char_valid.loss.ave_asr_model_valid.acc.ave/test|6000|111243|80.4|17.4|2.2|3.8|23.5|88.0|
  
  ### CER
  
  |dataset|Snt|Wrd|Corr|Sub|Del|Ins|Err|S.Err|
  |---|---|---|---|---|---|---|---|---|
  |decode_multi_asrtrue_lm_lm_train_lm_transformer_en_char_valid.loss.ave_asr_model_valid.acc.ave/test|6000|590408|90.5|6.1|3.5|3.9|13.5|88.0|
  
  ## ASR config
  
  <details><summary>expand</summary>
  
  ```
  config: conf/tuning/train_asr_transformer_multispkr.yaml
  print_config: false
  log_level: INFO
  dry_run: false
  iterator_type: sequence
  output_dir: exp/asr_train_asr_transformer_multispkr_raw_en_char_sp
  ngpu: 1
  seed: 0
  num_workers: 1
  num_att_plot: 3
  dist_backend: nccl
  dist_init_method: env://
  dist_world_size: null
  dist_rank: null
  local_rank: 0
  dist_master_addr: null
  dist_master_port: null
  dist_launcher: null
  multiprocessing_distributed: false
  unused_parameters: false
  sharded_ddp: false
  cudnn_enabled: true
  cudnn_benchmark: false
  cudnn_deterministic: true
  collect_stats: false
  write_collected_feats: false
  max_epoch: 45
  patience: null
  val_scheduler_criterion:
  - valid
  - loss
  early_stopping_criterion:
  - valid
  - loss
  - min
  best_model_criterion:
  -   - valid
      - acc
      - max
  keep_nbest_models: 10
  nbest_averaging_interval: 0
  grad_clip: 5.0
  grad_clip_type: 2.0
  grad_noise: false
  accum_grad: 1
  no_forward_run: false
  resume: true
  train_dtype: float32
  use_amp: false
  log_interval: null
  use_matplotlib: true
  use_tensorboard: true
  create_graph_in_tensorboard: false
  use_wandb: false
  wandb_project: null
  wandb_id: null
  wandb_entity: null
  wandb_name: null
  wandb_model_log_interval: -1
  detect_anomaly: false
  pretrain_path: null
  init_param: []
  ignore_init_mismatch: false
  freeze_param: []
  num_iters_per_epoch: null
  batch_size: 20
  valid_batch_size: null
  batch_bins: 5000000
  valid_batch_bins: null
  train_shape_file:
  - exp/asr_stats_raw_en_char_sp/train/speech_shape
  - exp/asr_stats_raw_en_char_sp/train/text_shape.char
  - exp/asr_stats_raw_en_char_sp/train/text_spk2_shape.char
  valid_shape_file:
  - exp/asr_stats_raw_en_char_sp/valid/speech_shape
  - exp/asr_stats_raw_en_char_sp/valid/text_shape.char
  - exp/asr_stats_raw_en_char_sp/valid/text_spk2_shape.char
  batch_type: numel
  valid_batch_type: null
  fold_length:
  - 80000
  - 150
  - 150
  sort_in_batch: descending
  sort_batch: descending
  multiple_iterator: false
  chunk_length: 500
  chunk_shift_ratio: 0.5
  num_cache_chunks: 1024
  train_data_path_and_name_and_type:
  -   - dump/raw/train_sp/wav.scp
      - speech
      - sound
  -   - dump/raw/train_sp/text_spk1
      - text
      - text
  -   - dump/raw/train_sp/text_spk2
      - text_spk2
      - text
  valid_data_path_and_name_and_type:
  -   - dump/raw/dev/wav.scp
      - speech
      - sound
  -   - dump/raw/dev/text_spk1
      - text
      - text
  -   - dump/raw/dev/text_spk2
      - text_spk2
      - text
  allow_variable_data_keys: false
  max_cache_size: 0.0
  max_cache_fd: 32
  valid_max_cache_size: null
  optim: adam
  optim_conf:
      lr: 0.001
  scheduler: warmuplr
  scheduler_conf:
      warmup_steps: 25000
  token_list:
  - <blank>
  - <unk>
  - <space>
  - E
  - T
  - A
  - O
  - N
  - I
  - H
  - S
  - R
  - D
  - L
  - U
  - M
  - C
  - W
  - F
  - G
  - Y
  - P
  - B
  - V
  - K
  - ''''
  - X
  - J
  - Q
  - Z
  - <sos/eos>
  init: xavier_uniform
  input_size: null
  ctc_conf:
      reduce: false
  joint_net_conf: null
  use_preprocessor: true
  token_type: char
  bpemodel: null
  non_linguistic_symbols: null
  cleaner: null
  g2p: null
  speech_volume_normalize: null
  rir_scp: null
  rir_apply_prob: 1.0
  noise_scp: null
  noise_apply_prob: 1.0
  noise_db_range: '13_15'
  short_noise_thres: 0.5
  frontend: default
  frontend_conf:
      fs: 16k
  specaug: null
  specaug_conf: {}
  normalize: global_mvn
  normalize_conf:
      stats_file: exp/asr_stats_raw_en_char_sp/train/feats_stats.npz
  model: pit_espnet
  model_conf:
      ctc_weight: 0.2
      ls