Audio-MAE

This repo hosts the code and models of "Masked Autoencoders that Listen" [NeurIPS 2022 bib].

Demo Examples

1. Installation

This repo follows the MAE repo, Installation and preparation follow that repo.
Copy files and patch the timm package by ``bash timm_patch.sh'' (Please change the path to your own timm package path). We use timm==0.3.2, for which a fix is needed to work with PyTorch 1.8.1+.
Please find mae_env.yml for all the dependencies.
You may also use download the conda-packed conda env, untar it, and then:
```
source path_to_env/bin/activate
```

2. Prepare data:

Please download AudioSet at here. Due to copyright we cannot release the data. The data annotation json parased and used in this work is available here. The format follows the one in AST. Please be sure to modify the path in the scripts accordingly to reflect your own setup.

3. Pretrianing on AudioSet-2M

For the brave ones to pre-train on AudioSet-2M: Please use the pretrain_audioset2M.sh by:

bash pretrain_audioset2M.sh

4. Fine-tuning on AudioSet-2M and AudioSet-20K

For Finetuning from an AuioSet-pretrained model. Please use your own pretrained model from the previous step or download our pre-trained ckpt and put it under ./ckpt/. Please use the script submit_ft_mask_bal.sh by

bash submit_ft_mask_bal.sh 2e-4 0.2 0.2 ./ckpt/pretrained.pth"

This will perform weighted distributed sampling on the unbalanded Audioset to fine-tuned the model with class-balanced data for 100 epochs. The resulting mAP on the AudioSet should be around 47.3. We provide our finetuned checkpoint at here. An example log of finetuning is as follows:

[07:10:32.717347] log_dir: /checkpoint/berniehuang/experiments/419909
[07:10:36.394431] Epoch: [99]  [  0/781]  eta: 0:47:51  lr: 0.000001  loss: 0.0066 (0.0066)  time: 3.6761  data: 1.6724  max mem: 2606
[07:12:24.728503] Epoch: [99]  [500/781]  eta: 0:01:02  lr: 0.000001  loss: 0.0116 (0.0128)  time: 0.2130  data: 0.0002  max mem: 2606
[07:13:24.602830] Epoch: [99]  [780/781]  eta: 0:00:00  lr: 0.000001  loss: 0.0122 (0.0128)  time: 0.1837  data: 0.0003  max mem: 2606
[07:13:24.853957] Epoch: [99] Total time: 0:02:52 (0.2204 s / it)
[07:13:25.085416] Averaged stats: lr: 0.000001  loss: 0.0122 (0.0126)
[07:13:28.343364] Test:  [ 0/79]  eta: 0:02:01    time: 1.5353  data: 1.5029  max mem: 2606
[07:13:30.942012] Test:  [78/79]  eta: 0:00:00    time: 0.0206  data: 0.0001  max mem: 2606
[07:13:31.180169] Test: Total time: 0:00:04 (0.0554 s / it)
[07:13:42.547896] mAP: 0.472873
[07:13:42.552120] mAP of the network on the 19148 test images: 0.4728
[07:13:42.552198] Max mAP: 0.473
[07:13:42.566228] Training time 5:16:14
submitit INFO (2022-04-22 07:13:43,404) - Job completed successfully

You can also try fine-tuning on AudioSet-20K for 60 epochs with

sbatch ft_as.sh 1e-3 ./ckpt/pretrained.pth

The log.txt will look like:

{"train_lr": 2.1997867184321786e-06, "train_loss": 0.01310475811136991, "test_mAP": 0.36981118189071294, "epoch": 56, "n_parameters": 85659407}
{"train_lr": 1.6171788925401227e-06, "train_loss": 0.01304934614071496, "test_mAP": 0.37001905352752995, "epoch": 57, "n_parameters": 85659407}
{"train_lr": 1.2277041313086816e-06, "train_loss": 0.013038477757025324, "test_mAP": 0.36998449127640076, "epoch": 58, "n_parameters": 85659407}
{"train_lr": 1.0325878664284776e-06, "train_loss": 0.012981618695671238, "test_mAP": 0.36999196624276054, "epoch": 59, "n_parameters": 85659407}

The peformance on AudioSet-20K is around 37.0 mAP.

5. Inference

For inference the finetuned model. Please put your finetuned model under ./ckpt, or please download our finetuned ckpt. Then:

bash inf.sh ckpt/finetuned.pth

This should give you 47.3 mAP on AudioSet. An example log is as follows:

[18:22:12.877430] number of params (M): 85.66
[18:22:12.877460] base lr: 2.00e-03
[18:22:12.877479] actual lr: 1.25e-04
[18:22:12.877495] accumulate grad iterations: 1
[18:22:12.877511] effective batch size: 16
[18:22:12.898235] criterion = BCEWithLogitsLoss()
[18:22:14.068845] Test:  [   0/1197]  eta: 0:23:19    time: 1.1690  data: 1.0901  max mem: 1035
[18:22:55.447027] Test:  [ 300/1197]  eta: 0:02:06    time: 0.1402  data: 0.0001  max mem: 1046
[18:23:37.699615] Test:  [ 600/1197]  eta: 0:01:24    time: 0.1411  data: 0.0001  max mem: 1061
[18:24:20.110863] Test:  [ 900/1197]  eta: 0:00:41    time: 0.1417  data: 0.0001  max mem: 1075
[18:25:02.194206] Test:  [1196/1197]  eta: 0:00:00    time: 0.1526  data: 0.0001  max mem: 1090
[18:25:02.321579] Test: Total time: 0:02:49 (0.1415 s / it)
[18:25:11.997641] mAP: 0.472873
[18:25:12.004128] Accuracy of the network on the 19148 test images: 0.4729

Per-class AP can be found under ./aps.txt and per-example results is inf_output.npy

Checkpoints:

ViT-B, AS-2M pretrained
ViT-B, AS-2M pretrained+finetuned

Updates

[x] Code and Model Release
[x] Provide conda-pack envs
[ ] Notebook demos for reconstruction (legal blocked)
[ ] Additional exps

Citation

@inproceedings{huang2022amae,
  title = {Masked Autoencoders that Listen},
  author = {Huang, Po-Yao and Xu, Hu and Li, Juncheng and Baevski, Alexei and Auli, Michael and Galuba, Wojciech and Metze, Florian and Feichtenhofer, Christoph}
  booktitle = {NeurIPS},
  year = {2022}
}

Contact

Please contact Bernie Huang (berniehuang@meta.com) if you have any questions. Thank you.

Reference

The codebase is based on the awesome MAE and AST repos.

License

This project is under the CC-BY 4.0 license. See LICENSE for details.

facebookresearch / AudioMAE

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