Model reference · open weights

cmusic_dev

Audio espnet Speech→text 1 build Open weights 4 dl/mo

cmusic_dev is an open-weight audio or speech model from espnet. cmusic_dev (BF16) weighs 146 MB; the smallest configuration that runs it is RTX 3060 12 GB.

  • cmusic_dev is an automatic speech recognition model developed by espnet and trained by William Chen using the librispeech recipe.
  • It is designed to process audio input at a 16 kHz sample rate and is licensed under the cc-by-4.0 license.
  • The model supports the English language and is distributed as espnet/cmusic_dev.

Summary of the espnet/cmusic_dev model card, 2026-10-01

What it is

Released byespnet
Released2026-03-15
VRAM146 MB for the weights

What it runs on

Memory and cards for cmusic_dev (BF16)

146 MBweights, file size
1.6 GBruntime overhead
CardOne streamMemory
RTX 3060 12 GBfits11.6 GB
RTX 4060 Ti 16 GBfits15.4 GB
RTX 3090 24 GBfits23.4 GB
RTX 4090 24 GBfits23.4 GB
RTX 5090 32 GBfits31.0 GB
L40S 48 GBfits44.0 GB
A100 80 GBfits78.2 GB
H100 80 GBfits78.1 GB
RTX PRO 6000 Blackwell 96 GBfits93.8 GB
DGX Spark (GB10) 128 GB unifiedfits107 GB
H200 141 GBfits138 GB
B200 180 GBfits176 GB

From the model card

What espnet says about cmusic_dev

Read the model card

ESPnet2 ASR model

espnet/cmusic_dev

This model was trained by William Chen using librispeech recipe in espnet.

Demo: How to use in ESPnet2

Follow the ESPnet installation instructions if you haven't done that already.

cd espnet
git checkout 2d8caa9a5975195fbd59c6001b0e3e80d7aaff6a
pip install -e .
cd egs2/librispeech/asr1
./run.sh --skip_data_prep false --skip_train true --download_model espnet/cmusic_dev

ASR config

config: conf/train_asr_transformer.yaml
print_config: false
log_level: INFO
drop_last_iter: false
dry_run: false
iterator_type: sequence
valid_iterator_type: null
output_dir: exp/asr_train_asr_transformer_raw_en_word
ngpu: 1
seed: 0
num_workers: 4
num_att_plot: 0
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
use_deepspeed: false
deepspeed_config: null
gradient_as_bucket_view: true
ddp_comm_hook: null
cudnn_enabled: true
cudnn_benchmark: false
cudnn_deterministic: true
use_tf32: false
collect_stats: false
write_collected_feats: false
max_epoch: 500
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: 100.0
grad_clip_type: 2.0
grad_noise: false
accum_grad: 1
no_forward_run: false
resume: true
train_dtype: float32
use_amp: true
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
use_adapter: false
adapter: lora
save_strategy: all
adapter_conf: {}
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: 32000000
valid_batch_bins: null
category_sample_size: 10
upsampling_factor: 0.5
category_upsampling_factor: 0.5
dataset_upsampling_factor: 0.5
dataset_scaling_factor: 1.2
max_batch_size: null
min_batch_size: 1
train_shape_file:
- exp/asr_stats_raw_en_word/train/speech_shape
- exp/asr_stats_raw_en_word/train/text_shape.word
valid_shape_file:
- exp/asr_stats_raw_en_word/valid/speech_shape
- exp/asr_stats_raw_en_word/valid/text_shape.word
batch_type: numel
valid_batch_type: null
fold_length:
- 80000
- 150
sort_in_batch: descending
shuffle_within_batch: false
sort_batch: descending
multiple_iterator: false
chunk_length: 500
chunk_shift_ratio: 0.5
num_cache_chunks: 1024
chunk_excluded_key_prefixes: []
chunk_default_fs: null
chunk_max_abs_length: null
chunk_discard_short_samples: true
train_data_path_and_name_and_type:
-   - dump/raw/maestro_train_onsets/wav.scp
    - speech
    - sound
-   - dump/raw/maestro_train_onsets/text
    - text
    - text
valid_data_path_and_name_and_type:
-   - dump/raw/maestro_dev_onsets/wav.scp
    - speech
    - sound
-   - dump/raw/maestro_dev_onsets/text
    - text
    - text
multi_task_dataset: false
allow_variable_data_keys: false
max_cache_size: 0.0
max_cache_fd: 32
allow_multi_rates: false
valid_max_cache_size: null
exclude_weight_decay: false
exclude_weight_decay_conf: {}
optim: adam
optim_conf:
    lr: 2.5e-05
scheduler: warmuplr
scheduler_conf:
    warmup_steps: 5000
token_list:
-
-
- AMT_MULTIINS_ONSETS
- AMT_ONSETS
- NOTE_ON_021
- NOTE_ON_022
- NOTE_ON_023
- NOTE_ON_024
- NOTE_ON_025
- NOTE_ON_026
- NOTE_ON_027
- NOTE_ON_028
- NOTE_ON_029
- NOTE_ON_030
- NOTE_ON_031
- NOTE_ON_032
- NOTE_ON_033
- NOTE_ON_034
- NOTE_ON_035
- NOTE_ON_036
- NOTE_ON_037
- NOTE_ON_038
- NOTE_ON_039
- NOTE_ON_040
- NOTE_ON_041
- NOTE_ON_042
- NOTE_ON_043
- NOTE_ON_044
- NOTE_ON_045
- NOTE_ON_046
- NOTE_ON_047
- NOTE_ON_048
- NOTE_ON_049
- NOTE_ON_050
- NOTE_ON_051
- NOTE_ON_052
- NOTE_ON_053
- NOTE_ON_054
- NOTE_ON_055
- NOTE_ON_056
- NOTE_ON_057
- NOTE_ON_058
- NOTE_ON_059
- NOTE_ON_060
- NOTE_ON_061
- NOTE_ON_062
- NOTE_ON_063
- NOTE_ON_064
- NOTE_ON_065
- NOTE_ON_066
- NOTE_ON_067
- NOTE_ON_068
- NOTE_ON_069
- NOTE_ON_070
- NOTE_ON_071
- NOTE_ON_072
- NOTE_ON_073
- NOTE_ON_074
- NOTE_ON_075
- NOTE_ON_076
- NOTE_ON_077
- NOTE_ON_078
- NOTE_ON_079
- NOTE_ON_080
- NOTE_ON_081
- NOTE_ON_082
- NOTE_ON_083
- NOTE_ON_084
- NOTE_ON_085
- NOTE_ON_086
- NOTE_ON_087
- NOTE_ON_088
- NOTE_ON_089
- NOTE_ON_090
- NOTE_ON_091
- NOTE_ON_092
- NOTE_ON_093
- NOTE_ON_094
- NOTE_ON_095
- NOTE_ON_096
- NOTE_ON_097
- NOTE_ON_098
- NOTE_ON_099
- NOTE_ON_100
- NOTE_ON_101
- NOTE_ON_102
- NOTE_ON_103
- NOTE_ON_104
- NOTE_ON_105
- NOTE_ON_106
- NOTE_ON_107
- NOTE_ON_108
- NOTE_ON_INS_000_PITCH_021
- NOTE_ON_INS_000_PITCH_022
- NOTE_ON_INS_000_PITCH_023
- NOTE_ON_INS_000_PITCH_024
- NOTE_ON_INS_000_PITCH_025
- NOTE_ON_INS_000_PITCH_026
- NOTE_ON_INS_000_PITCH_027
- NOTE_ON_INS_000_PITCH_028
- NOTE_ON_INS_000_PITCH_029
- NOTE_ON_INS_000_PITCH_030
- NOTE_ON_INS_000_PITCH_031
- NOTE_ON_INS_000_PITCH_032
- NOTE_ON_INS_000_PITCH_033
- NOTE_ON_INS_000_PITCH_034
- NOTE_ON_INS_000_PITCH_035
- NOTE_ON_INS_000_PITCH_036
- NOTE_ON_INS_000_PITCH_037
- NOTE_ON_INS_000_PITCH_038
- NOTE_ON_INS_000_PITCH_039
- NOTE_ON_INS_000_PITCH_040
- NOTE_ON_INS_000_PITCH_041
- NOTE_ON_INS_000_PITCH_042
- NOTE_ON_INS_000_PITCH_043
- NOTE_ON_INS_000_PITCH_044
- NOTE_ON_INS_000_PITCH_045
- NOTE_ON_INS_000_PITCH_046
- NOTE_ON_INS_000_PITCH_047
- NOTE_ON_INS_000_PITCH_048
- NOTE_ON_INS_000_PITCH_049
- NOTE_ON_INS_000_PITCH_050
- NOTE_ON_INS_000_PITCH_051
- NOTE_ON_INS_000_PITCH_052
- NOTE_ON_INS_000_PITCH_053
- NOTE_ON_INS_000_PITCH_054
- NOTE_ON_INS_000_PITCH_055
- NOTE_ON_INS_000_PITCH_056
- NOTE_ON_INS_000_PITCH_057
- NOTE_ON_INS_000_PITCH_058
- NOTE_ON_INS_000_PITCH_059
- NOTE_ON_INS_000_PITCH_060
- NOTE_ON_INS_000_PITCH_061
- NOTE_ON_INS_000_PITCH_062
- NOTE_ON_INS_

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

How it works

How audio & music work

Audio or textinputAudio modelrecognise / synthesiseText or audiooutputSpeech-to-text turns audio into text; text-to-speech and music models turn text into audio.
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