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https://github.com/sally-sh/vsp-llm


https://github.com/sally-sh/vsp-llm

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# VSP-LLM (Visual Speech Processing incorporated with LLMs)

This is the PyTorch code for [Where Visual Speech Meets Language: VSP-LLM Framework for Efficient and Context-Aware Visual Speech Processing](https://arxiv.org/abs/2402.15151). This code is developed on the code of [AV-HuBERT](https://github.com/facebookresearch/av_hubert).

## Introduction

We propose a novel framework, namely Visual Speech Processing incorporated with LLMs (VSP-LLM), to maximize the context modeling ability by bringing the overwhelming power of LLMs. Specifically, VSP-LLM is designed to perform multi-tasks of visual speech recognition and translation, where the given instructions control the type of task. The input video is mapped to the input latent space of a LLM by employing a self-supervised visual speech model. Focused on the fact that there is redundant information in input frames, we propose a novel deduplication method that reduces the embedded visual features by employing visual speech units. Through the proposed deduplication and Low Rank Adaptors (LoRA), VSP-LLM can be trained in a computationally efficient manner.

![vsr-vst](docs/demo.gif)

## Model checkpoint

You can find checkpoint of our model in [here](https://drive.google.com/drive/folders/1aBnm8XOWlRAGjPwcK2mYEGd8insNCx13?usp=sharing).
Move the checkpoint to [`checkpoints`](checkpoints/).

## Preparation

```
conda create -n vsp-llm python=3.9 -y
conda activate vsp-llm
git clone https://github.com/Sally-SH/VSP-LLM.git
cd VSP-LLM
pip install -r requirements.txt
cd fairseq
pip install --editable ./
```

- Download AV-HuBERT pre-trained model `AV-HuBERT Large (LSR3 + VoxCeleb2)` from [here](http://facebookresearch.github.io/av_hubert).
- Download LLaMA2-7B from [here](https://huggingface.co/meta-llama/Llama-2-7b-hf).

Move the AV-HuBERT pre-trained model checkpoint and the LLaMA2-7B checkpoint to [`checkpoints`](checkpoints/).

## Data preprocessing
Follow [Auto-AVSR preparation](https://github.com/mpc001/auto_avsr/tree/main/preparation) to preprocess the LRS3 dataset.\
Then, follow [AV-HuBERT preparation](https://github.com/facebookresearch/av_hubert/tree/main/avhubert/preparation) from step 3 to create manifest of LRS3 dataset.

### Generate visual speech unit and cluster counts file
Follow the steps in [`clustering`](src/clustering/) to create:
- `{train,valid}.km` frame-aligned pseudo label files.
The `label_rate` is the same as the feature frame rate used for clustering,
which is 25Hz for AV-HuBERT features by default.

### Dataset layout

.
├── lrs3
│ ├── lrs3_video_seg24s # Preprocessed video and audio data
│ └── lrs3_text_seg24s # Preprocessed text data
├── muavic_dataset # Mix of VSR data and VST(En-X) data
│ ├── train.tsv # List of audio and video path for training
│ ├── train.wrd # List of target label for training
│ ├── train.cluster_counts # List of clusters to deduplicate speech units in training
│ ├── test.tsv # List of audio and video path for testing
│ ├── test.wrd # List of target label for testing
│ └── test.cluster_counts # List of clusters to deduplicate speech units in testing
└── test_data
├── vsr
│ └── en
│ ├── test.tsv
│ ├── test.wrd
│ └── test.cluster_counts
└── vst
└── en
├── es
: ├── test.tsv
: ├── test.wrd
: └── test.cluster_counts
└── pt
├── test.tsv
├── test.wrd
└── test.cluster_counts

### Test data
The test manifest is provided in [`labels`](labels/). You need to replace the path of the LRS3 in the manifest file with your preprocessed LRS3 dataset path using the following command:
```bash
cd src/dataset
python replace_path.py --lrs3 /path/to/lrs3
```
Then modified test amanifest is saved in [`dataset`](src/dataset/)

## Training

Open the training script ([`scripts/train.sh`](https://github.com/Sally-SH/VSP-LLM/blob/main/scripts/train.sh)) and replace these variables:

```bash
# path to train dataset dir
DATA_PATH=???

# path where output trained models will be located
OUT_PATH=???
```

Run the training script:

```bash
$ bash scripts/train.sh
```

## Decoding

Open the decoding script ([`scripts/decode.sh`](https://github.com/Sally-SH/VSP-LLM/blob/main/scripts/decode.sh)) and replace these variables:

```bash
# language direction (e.g 'en' for VSR task / 'en-es' for En to Es VST task)
LANG=???

# path to the trained model
MODEL_PATH=???

# path where decoding results and scores will be located
OUT_PATH=???
```

Run the decoding script:

```bash
$ bash scripts/decode.sh
```