🐸TTS is a library for advanced Text-to-Speech generation. It’s built on the latest research, was designed to achieve the best trade-off among ease-of-training, speed and quality. 🐸TTS comes with pretrained models, tools for measuring dataset quality and already used in 20+ languages for products and research projects.

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📄 Text-to-Speech paper collection

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Please use our dedicated channels for questions and discussion. Help is much more valuable if it’s shared publicly so that more people can benefit from it.



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🎁 Feature Requests & Ideas

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🥇 TTS Performance

Underlined “TTS*” and “Judy*” are 🐸TTS models


  • High-performance Deep Learning models for Text2Speech tasks.

    • Text2Spec models (Tacotron, Tacotron2, Glow-TTS, SpeedySpeech).

    • Speaker Encoder to compute speaker embeddings efficiently.

    • Vocoder models (MelGAN, Multiband-MelGAN, GAN-TTS, ParallelWaveGAN, WaveGrad, WaveRNN)

  • Fast and efficient model training.

  • Detailed training logs on the terminal and Tensorboard.

  • Support for Multi-speaker TTS.

  • Efficient, flexible, lightweight but feature complete Trainer API.

  • Ability to convert PyTorch models to Tensorflow 2.0 and TFLite for inference.

  • Released and read-to-use models.

  • Tools to curate Text2Speech datasets underdataset_analysis.

  • Utilities to use and test your models.

  • Modular (but not too much) code base enabling easy implementation of new ideas.

Implemented Models


End-to-End Models

Attention Methods

  • Guided Attention: paper

  • Forward Backward Decoding: paper

  • Graves Attention: paper

  • Double Decoder Consistency: blog

  • Dynamic Convolutional Attention: paper

  • Alignment Network: paper

Speaker Encoder


You can also help us implement more models.

Install TTS

🐸TTS is tested on Ubuntu 18.04 with python >= 3.6, < 3.9.

If you are only interested in synthesizing speech with the released 🐸TTS models, installing from PyPI is the easiest option.

pip install TTS

By default, this only installs the requirements for PyTorch. To install the tensorflow dependencies as well, use the tf extra.

pip install TTS[tf]

If you plan to code or train models, clone 🐸TTS and install it locally.

git clone https://github.com/coqui-ai/TTS
pip install -e .[all,dev,notebooks,tf]  # Select the relevant extras

If you are on Ubuntu (Debian), you can also run following commands for installation.

$ make system-deps  # intended to be used on Ubuntu (Debian). Let us know if you have a diffent OS.
$ make install

If you are on Windows, 👑@GuyPaddock wrote installation instructions here.


Single Speaker Models

  • List provided models:

    $ tts --list_models
  • Run TTS with default models:

    $ tts --text "Text for TTS"
  • Run a TTS model with its default vocoder model:

    $ tts --text "Text for TTS" --model_name "<language>/<dataset>/<model_name>
  • Run with specific TTS and vocoder models from the list:

    $ tts --text "Text for TTS" --model_name "<language>/<dataset>/<model_name>" --vocoder_name "<language>/<dataset>/<model_name>" --output_path
  • Run your own TTS model (Using Griffin-Lim Vocoder):

    $ tts --text "Text for TTS" --model_path path/to/model.pth.tar --config_path path/to/config.json --out_path output/path/speech.wav
  • Run your own TTS and Vocoder models:

    $ tts --text "Text for TTS" --model_path path/to/config.json --config_path path/to/model.pth.tar --out_path output/path/speech.wav
        --vocoder_path path/to/vocoder.pth.tar --vocoder_config_path path/to/vocoder_config.json

Multi-speaker Models

  • List the available speakers and choose as <speaker_id> among them:

    $ tts --model_name "<language>/<dataset>/<model_name>"  --list_speaker_idxs
  • Run the multi-speaker TTS model with the target speaker ID:

    $ tts --text "Text for TTS." --out_path output/path/speech.wav --model_name "<language>/<dataset>/<model_name>"  --speaker_idx <speaker_id>
  • Run your own multi-speaker TTS model:

    $ tts --text "Text for TTS" --out_path output/path/speech.wav --model_path path/to/config.json --config_path path/to/model.pth.tar --speakers_file_path path/to/speaker.json --speaker_idx <speaker_id>

Directory Structure

|- notebooks/       (Jupyter Notebooks for model evaluation, parameter selection and data analysis.)
|- utils/           (common utilities.)
|- TTS
    |- bin/             (folder for all the executables.)
      |- train*.py                  (train your target model.)
      |- distribute.py              (train your TTS model using Multiple GPUs.)
      |- compute_statistics.py      (compute dataset statistics for normalization.)
      |- convert*.py                (convert target torch model to TF.)
      |- ...
    |- tts/             (text to speech models)
        |- layers/          (model layer definitions)
        |- models/          (model definitions)
        |- tf/              (Tensorflow 2 utilities and model implementations)
        |- utils/           (model specific utilities.)
    |- speaker_encoder/ (Speaker Encoder models.)
        |- (same)
    |- vocoder/         (Vocoder models.)
        |- (same)

Documentation Content