Performance-Efficiency Trade-offs in Unsupervised Pre-training for Speech Recognition

Related tags

Text Data & NLPsew
Overview

SEW (Squeezed and Efficient Wav2vec)

made-with-python License: MIT

The repo contains the code of the paper "Performance-Efficiency Trade-offs in Unsupervised Pre-training for Speech Recognition" by Felix Wu, Kwangyoun Kim, Jing Pan, Kyu Han, Kilian Q Weinberger, and Yoav Artzi.

Model Checkpoints

Unsupervisedly Pre-trained on LibriSpeech 960h

Model Pre-training updates Dataset Model
W2V2-tiny 100K Librispeech 960h download
W2V2-small 100K Librispeech 960h download
W2V2-mid 100K Librispeech 960h download
W2V2-base 100K Librispeech 960h download
SEW-tiny 100K Librispeech 960h download
SEW-small 100K Librispeech 960h download
SEW-mid 100K Librispeech 960h download
SEW-D-tiny 100K Librispeech 960h download
SEW-D-small 100K Librispeech 960h download
SEW-D-mid 100K Librispeech 960h download
SEW-D-mid (k127) 100K Librispeech 960h download
SEW-D-base 100K Librispeech 960h download
SEW-D-base+ 100K Librispeech 960h download
SEW-D-mid 400K Librispeech 960h download
SEW-D-mid (k127) 400K Librispeech 960h download
SEW-D-base+ 400K Librispeech 960h download

ASR model fine-tuned on LibriSpeech train-clean 100h

Model Pre-training updates Finetuning split Model
SEW-tiny 100K 100h download
SEW-D-tiny 100K 100h download
SEW-D-mid 400K 100h download
SEW-D-mid (k127) 400K 100h download
SEW-D-base+ 400K 100h download

Usage

Dependencies

The code is tested with fairseq commit 05255f9, deberta commit bf17ca4 and the following packages.

torch==1.8.0
torchaudio==0.8.0
tqdm==4.49.0
Hydra==2.5
hydra-core==1.0.4
fvcore==0.1.5.post20210330
omegaconf==2.0.5
einops==0.3.0
fire==0.2.1

Apex

Please install NVIDIA's apex with

git clone https://github.com/NVIDIA/apex
cd apex
pip install -v --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext" \
  --global-option="--deprecated_fused_adam" --global-option="--xentropy" \
  --global-option="--fast_multihead_attn" ./

wav2letter decoder

Currently, we are decoding with wav2letter v0.2 python binding at commit 96f5f9d Please install the python binding here https://github.com/flashlight/wav2letter/tree/96f5f9d3b41e01af0a031ee0d2604acd9ef3b1b0/bindings/python The newest commit d5a93f0 in v0.2 branch leads to worse WER for wav2vec 2.0 baselines.

Installation

git clone https://github.com/asappresearch/sew.git
cd sew 
pip install -e .

Pre-training

Pre-training SEW models

Run the following command where $model_size can be tiny, small, or mid, and $ngpu is tne number of GPUs you want to use.

bash scripts/pt-sew.sh $model_size $ngpu

Pre-training SEW-D models

bash scripts/pt-sew-d.sh $model_size $ngpu

where $model_size can be tiny, small, mid, mid-k127, base, or base+.

Fine-tuning

Run the following script to fine-tune a model with the hyperparameters from wav2vec 2.0.

bash scripts/ft-model.sh $pre_trained_model $split $ngpu

where $pre_trained_model can be either a W2V2, SEW, or a SEW-D model checkpoint and $split can be 10m, 1h, 10h, or 100h.

Here we also provide a set of hyperparameters which sets all dropouts the same as the pre-training stage, and we found it to be more stable.

bash scripts/ft-model-stable.sh $pre_trained_model $split $ngpu

If you see out of GPU memory error, please scale down the dataset.max_tokens and scale up the optimization.update_freq in scripts/ft-model.sh. For example modifying these lines

  dataset.max_tokens=3200000 \
  optimization.update_freq="[$((8 / $ngpu))]" \

to

  dataset.max_tokens=1600000 \
  optimization.update_freq="[$((16 / $ngpu))]" \

which reduces the batch size and increases the gradient accumulation steps in order to use less GPU memory.

Evaluation

  1. Please run this script to prepare the official LibriSpeech 4-gram language model.
bash scripts/prepare_librispeech_lm.sh $kenlm_build_bin

where $kenlm_build_bin is the folder that contains the KenLM build_binary executable file (e.g. /home/user/kenlm/build/bin).

  1. Then run this script to evaluate a pre-trained ASR model
python tools/eval_w2v.py tunelm --subsets '["dev-clean", "dev-other", "test-clean", "test-other"]' --model $asr_checkpoint
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Comments
  • 8000 sample rate audio

    8000 sample rate audio

    Hello there,

    I'm trying to train on 8000 Hz sample rate audio dataset. Is it enough to simply add task.sample_rate=8000 to the fairseq command or there are additional config changes that I should make?

    I would much appreciate any advice

    Thank you

    opened by Mega4alik 0
  • How to train using not English Languages

    How to train using not English Languages

    Hi! Thank you for the awesome model!

    We are very interested in your project and we try to use the sew for Japanese Language. When we train the model, should we use these scripts? Thanks! https://github.com/asappresearch/sew/tree/master/scripts

    opened by jigenji 1
  • :bug: Fix padding mask calculation

    :bug: Fix padding mask calculation

    This PR updates the padding mask calculation to be the same as the one in the reference Wav2Vec2 implementation (same commit as listed in SEW's README): https://github.com/pytorch/fairseq/blob/05255f96410e5b1eaf3bf59b767d5b4b7e2c3a35/fairseq/models/wav2vec/wav2vec2.py#L477

    For more details on how and why it was fixed in fairseq, check out this PR by @patrickvonplaten https://github.com/pytorch/fairseq/pull/3228

    opened by anton-l 0
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ASAPP Research
AI for Enterprise
ASAPP Research
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