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230 lines
11 KiB
230 lines
11 KiB
# FastSpeech2 with the LJSpeech-1.1
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This example contains code used to train a [Fastspeech2](https://arxiv.org/abs/2006.04558) model with [LJSpeech-1.1](https://keithito.com/LJ-Speech-Dataset/).
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## Dataset
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### Download and Extract
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Download LJSpeech-1.1 from the [official website](https://keithito.com/LJ-Speech-Dataset/).
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### Get MFA Result and Extract
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We use [MFA](https://github.com/MontrealCorpusTools/Montreal-Forced-Aligner) to get durations for fastspeech2.
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You can download from here [ljspeech_alignment.tar.gz](https://paddlespeech.bj.bcebos.com/MFA/LJSpeech-1.1/ljspeech_alignment.tar.gz), or train your own MFA model reference to [use_mfa example](https://github.com/PaddlePaddle/PaddleSpeech/tree/develop/examples/other/use_mfa) of our repo.
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## Get Started
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Assume the path to the dataset is `~/datasets/LJSpeech-1.1`.
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Assume the path to the MFA result of LJSpeech-1.1 is `./ljspeech_alignment`.
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Run the command below to
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1. **source path**.
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2. preprocess the dataset.
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3. train the model.
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4. synthesize wavs.
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- synthesize waveform from `metadata.jsonl`.
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- synthesize waveform from text file.
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```bash
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./run.sh
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```
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You can choose a range of stages you want to run, or set `stage` equal to `stop-stage` to use only one stage, for example, run the following command will only preprocess the dataset.
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```bash
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./run.sh --stage 0 --stop-stage 0
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```
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### Data Preprocessing
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```bash
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./local/preprocess.sh ${conf_path}
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```
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When it is done. A `dump` folder is created in the current directory. The structure of the dump folder is listed below.
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```text
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dump
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├── dev
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│ ├── norm
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│ └── raw
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├── phone_id_map.txt
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├── speaker_id_map.txt
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├── test
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│ ├── norm
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│ └── raw
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└── train
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├── energy_stats.npy
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├── norm
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├── pitch_stats.npy
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├── raw
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└── speech_stats.npy
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```
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The dataset is split into 3 parts, namely `train`, `dev` and` test`, each of which contains a `norm` and `raw` sub folder. The raw folder contains speech、pitch and energy features of each utterances, while the norm folder contains normalized ones. The statistics used to normalize features are computed from the training set, which is located in `dump/train/*_stats.npy`.
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Also there is a `metadata.jsonl` in each subfolder. It is a table-like file which contains phones, text_lengths, speech_lengths, durations, path of speech features, path of pitch features, path of energy features, speaker and id of each utterance.
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### Model Training
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`./local/train.sh` calls `${BIN_DIR}/train.py`.
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```bash
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CUDA_VISIBLE_DEVICES=${gpus} ./local/train.sh ${conf_path} ${train_output_path}
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```
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Here's the complete help message.
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```text
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usage: train.py [-h] [--config CONFIG] [--train-metadata TRAIN_METADATA]
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[--dev-metadata DEV_METADATA] [--output-dir OUTPUT_DIR]
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[--ngpu NGPU] [--verbose VERBOSE] [--phones-dict PHONES_DICT]
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[--speaker-dict SPEAKER_DICT]
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Train a FastSpeech2 model.
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optional arguments:
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-h, --help show this help message and exit
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--config CONFIG fastspeech2 config file.
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--train-metadata TRAIN_METADATA
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training data.
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--dev-metadata DEV_METADATA
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dev data.
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--output-dir OUTPUT_DIR
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output dir.
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--ngpu NGPU if ngpu=0, use cpu.
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--verbose VERBOSE verbose.
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--phones-dict PHONES_DICT
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phone vocabulary file.
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--speaker-dict SPEAKER_DICT
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speaker id map file for multiple speaker model.
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```
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1. `--config` is a config file in yaml format to overwrite the default config, which can be found at `conf/default.yaml`.
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2. `--train-metadata` and `--dev-metadata` should be the metadata file in the normalized subfolder of `train` and `dev` in the `dump` folder.
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3. `--output-dir` is the directory to save the results of the experiment. Checkpoints are save in `checkpoints/` inside this directory.
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4. `--ngpu` is the number of gpus to use, if ngpu == 0, use cpu.
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5. `--phones-dict` is the path of the phone vocabulary file.
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### Synthesizing
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We use [parallel wavegan](https://github.com/PaddlePaddle/PaddleSpeech/tree/develop/examples/ljspeech/voc1) as the neural vocoder.
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Download pretrained parallel wavegan model from [pwg_ljspeech_ckpt_0.5.zip](https://paddlespeech.bj.bcebos.com/Parakeet/released_models/pwgan/pwg_ljspeech_ckpt_0.5.zip) and unzip it.
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```bash
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unzip pwg_ljspeech_ckpt_0.5.zip
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```
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Parallel WaveGAN checkpoint contains files listed below.
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```text
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pwg_ljspeech_ckpt_0.5
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├── pwg_default.yaml # default config used to train parallel wavegan
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├── pwg_snapshot_iter_400000.pdz # generator parameters of parallel wavegan
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└── pwg_stats.npy # statistics used to normalize spectrogram when training parallel wavegan
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```
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`./local/synthesize.sh` calls `${BIN_DIR}/synthesize.py`, which can synthesize waveform from `metadata.jsonl`.
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```bash
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CUDA_VISIBLE_DEVICES=${gpus} ./local/synthesize.sh ${conf_path} ${train_output_path} ${ckpt_name}
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```
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```text
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usage: synthesize.py [-h] [--fastspeech2-config FASTSPEECH2_CONFIG]
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[--fastspeech2-checkpoint FASTSPEECH2_CHECKPOINT]
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[--fastspeech2-stat FASTSPEECH2_STAT]
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[--pwg-config PWG_CONFIG]
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[--pwg-checkpoint PWG_CHECKPOINT] [--pwg-stat PWG_STAT]
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[--phones-dict PHONES_DICT] [--speaker-dict SPEAKER_DICT]
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[--test-metadata TEST_METADATA] [--output-dir OUTPUT_DIR]
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[--ngpu NGPU] [--verbose VERBOSE]
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Synthesize with fastspeech2 & parallel wavegan.
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optional arguments:
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-h, --help show this help message and exit
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--fastspeech2-config FASTSPEECH2_CONFIG
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fastspeech2 config file.
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--fastspeech2-checkpoint FASTSPEECH2_CHECKPOINT
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fastspeech2 checkpoint to load.
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--fastspeech2-stat FASTSPEECH2_STAT
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mean and standard deviation used to normalize
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spectrogram when training fastspeech2.
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--pwg-config PWG_CONFIG
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parallel wavegan config file.
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--pwg-checkpoint PWG_CHECKPOINT
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parallel wavegan generator parameters to load.
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--pwg-stat PWG_STAT mean and standard deviation used to normalize
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spectrogram when training parallel wavegan.
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--phones-dict PHONES_DICT
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phone vocabulary file.
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--speaker-dict SPEAKER_DICT
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speaker id map file for multiple speaker model.
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--test-metadata TEST_METADATA
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test metadata.
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--output-dir OUTPUT_DIR
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output dir.
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--ngpu NGPU if ngpu == 0, use cpu.
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--verbose VERBOSE verbose.
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```
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`./local/synthesize_e2e.sh` calls `${BIN_DIR}/synthesize_e2e_en.py`, which can synthesize waveform from text file.
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```bash
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CUDA_VISIBLE_DEVICES=${gpus} ./local/synthesize_e2e.sh ${conf_path} ${train_output_path} ${ckpt_name}
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```
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```text
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usage: synthesize_e2e.py [-h] [--fastspeech2-config FASTSPEECH2_CONFIG]
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[--fastspeech2-checkpoint FASTSPEECH2_CHECKPOINT]
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[--fastspeech2-stat FASTSPEECH2_STAT]
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[--pwg-config PWG_CONFIG]
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[--pwg-checkpoint PWG_CHECKPOINT]
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[--pwg-stat PWG_STAT] [--phones-dict PHONES_DICT]
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[--text TEXT] [--output-dir OUTPUT_DIR]
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[--inference-dir INFERENCE_DIR] [--ngpu NGPU]
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[--verbose VERBOSE]
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Synthesize with fastspeech2 & parallel wavegan.
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optional arguments:
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-h, --help show this help message and exit
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--fastspeech2-config FASTSPEECH2_CONFIG
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fastspeech2 config file.
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--fastspeech2-checkpoint FASTSPEECH2_CHECKPOINT
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fastspeech2 checkpoint to load.
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--fastspeech2-stat FASTSPEECH2_STAT
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mean and standard deviation used to normalize
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spectrogram when training fastspeech2.
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--pwg-config PWG_CONFIG
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parallel wavegan config file.
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--pwg-checkpoint PWG_CHECKPOINT
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parallel wavegan generator parameters to load.
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--pwg-stat PWG_STAT mean and standard deviation used to normalize
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spectrogram when training parallel wavegan.
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--phones-dict PHONES_DICT
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phone vocabulary file.
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--text TEXT text to synthesize, a 'utt_id sentence' pair per line.
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--output-dir OUTPUT_DIR
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output dir.
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--inference-dir INFERENCE_DIR
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dir to save inference models
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--ngpu NGPU if ngpu == 0, use cpu.
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--verbose VERBOSE verbose.
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```
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1. `--fastspeech2-config`, `--fastspeech2-checkpoint`, `--fastspeech2-stat` and `--phones-dict` are arguments for fastspeech2, which correspond to the 4 files in the fastspeech2 pretrained model.
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2. `--pwg-config`, `--pwg-checkpoint`, `--pwg-stat` are arguments for parallel wavegan, which correspond to the 3 files in the parallel wavegan pretrained model.
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3. `--test-metadata` should be the metadata file in the normalized subfolder of `test` in the `dump` folder.
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4. `--text` is the text file, which contains sentences to synthesize.
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5. `--output-dir` is the directory to save synthesized audio files.
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6. `--ngpu` is the number of gpus to use, if ngpu == 0, use cpu.
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## Pretrained Model
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Pretrained FastSpeech2 model with no silence in the edge of audios. [fastspeech2_nosil_ljspeech_ckpt_0.5.zip](https://paddlespeech.bj.bcebos.com/Parakeet/released_models/fastspeech2/fastspeech2_nosil_ljspeech_ckpt_0.5.zip)
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Model | Step | eval/loss | eval/l1_loss | eval/duration_loss | eval/pitch_loss| eval/energy_loss
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:-------------:| :------------:| :-----: | :-----: | :--------: |:--------:|:---------:
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default| 2(gpu) x 100000| 1.505682|0.612104| 0.045505| 0.62792| 0.220147
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FastSpeech2 checkpoint contains files listed below.
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```text
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fastspeech2_nosil_ljspeech_ckpt_0.5
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├── default.yaml # default config used to train fastspeech2
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├── phone_id_map.txt # phone vocabulary file when training fastspeech2
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├── snapshot_iter_100000.pdz # model parameters and optimizer states
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└── speech_stats.npy # statistics used to normalize spectrogram when training fastspeech2
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```
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You can use the following scripts to synthesize for `${BIN_DIR}/../sentences_en.txt` using pretrained fastspeech2 and parallel wavegan models.
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```bash
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source path.sh
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FLAGS_allocator_strategy=naive_best_fit \
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FLAGS_fraction_of_gpu_memory_to_use=0.01 \
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python3 ${BIN_DIR}/synthesize_e2e_en.py \
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--fastspeech2-config=fastspeech2_nosil_ljspeech_ckpt_0.5/default.yaml \
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--fastspeech2-checkpoint=fastspeech2_nosil_ljspeech_ckpt_0.5/snapshot_iter_100000.pdz \
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--fastspeech2-stat=fastspeech2_nosil_ljspeech_ckpt_0.5/speech_stats.npy \
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--pwg-config=pwg_ljspeech_ckpt_0.5/pwg_default.yaml \
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--pwg-checkpoint=pwg_ljspeech_ckpt_0.5/pwg_snapshot_iter_400000.pdz \
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--pwg-stat=pwg_ljspeech_ckpt_0.5/pwg_stats.npy \
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--text=${BIN_DIR}/../sentences_en.txt \
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--output-dir=exp/default/test_e2e \
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--phones-dict=fastspeech2_nosil_ljspeech_ckpt_0.5/phone_id_map.txt
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```
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