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# Training
## Prepare Dataset
Example data processing scripts, and you may tailor your own one along with a Dataset class in `src/f5_tts/model/dataset.py`.
### 1. Some specific Datasets preparing scripts
Download corresponding dataset first, and fill in the path in scripts.
```bash
# Prepare the Emilia dataset
python src/f5_tts/train/datasets/prepare_emilia.py
# Prepare the Wenetspeech4TTS dataset
python src/f5_tts/train/datasets/prepare_wenetspeech4tts.py
# Prepare the LibriTTS dataset
python src/f5_tts/train/datasets/prepare_libritts.py
# Prepare the LJSpeech dataset
python src/f5_tts/train/datasets/prepare_ljspeech.py
```
### 2. Create custom dataset with metadata.csv
Use guidance see [#57 here](https://github.com/SWivid/F5-TTS/discussions/57#discussioncomment-10959029).
```bash
python src/f5_tts/train/datasets/prepare_csv_wavs.py
```
## Training & Finetuning
Once your datasets are prepared, you can start the training process.
### 1. Training script used for pretrained model
```bash
# setup accelerate config, e.g. use multi-gpu ddp, fp16
# will be to: ~/.cache/huggingface/accelerate/default_config.yaml
accelerate config
# .yaml files are under src/f5_tts/configs directory
accelerate launch src/f5_tts/train/train.py --config-name F5TTS_v1_Base.yaml
# possible to overwrite accelerate and hydra config
accelerate launch --mixed_precision=fp16 src/f5_tts/train/train.py --config-name F5TTS_v1_Base.yaml ++datasets.batch_size_per_gpu=19200
```
### 2. Finetuning practice
Discussion board for Finetuning [#57](https://github.com/SWivid/F5-TTS/discussions/57).
Gradio UI training/finetuning with `src/f5_tts/train/finetune_gradio.py` see [#143](https://github.com/SWivid/F5-TTS/discussions/143).
If want to finetune with a variant version e.g. *F5TTS_v1_Base_no_zero_init*, manually download pretrained checkpoint from model weight repository and fill in the path correspondingly on web interface.
If use tensorboard as logger, install it first with `pip install tensorboard`.
<ins>The `use_ema = True` might be harmful for early-stage finetuned checkpoints</ins> (which goes just few updates, thus ema weights still dominated by pretrained ones), try turn it off with finetune gradio option or `load_model(..., use_ema=False)`, see if offer better results.
### 3. W&B Logging
The `wandb/` dir will be created under path you run training/finetuning scripts.
By default, the training script does NOT use logging (assuming you didn't manually log in using `wandb login`).
To turn on wandb logging, you can either:
1. Manually login with `wandb login`: Learn more [here](https://docs.wandb.ai/ref/cli/wandb-login)
2. Automatically login programmatically by setting an environment variable: Get an API KEY at https://wandb.ai/authorize and set the environment variable as follows:
On Mac & Linux:
```
export WANDB_API_KEY=<YOUR WANDB API KEY>
```
On Windows:
```
set WANDB_API_KEY=<YOUR WANDB API KEY>
```
Moreover, if you couldn't access W&B and want to log metrics offline, you can set the environment variable as follows:
```
export WANDB_MODE=offline
```
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