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Expressive-FastSpeech2 - PyTorch Implementation

Contributions

  1. Non-autoregressive Expressive TTS: This project aims to provide a cornerstone for future research and application on a non-autoregressive expressive TTS including Emotional TTS and Conversational TTS. For datasets, AIHub Multimodal Video AI datasets and IEMOCAP database are picked for Korean and English, respectively.

    Note: If you are interested in GST-Tacotron or VAE-Tacotron like expressive stylistic TTS model but under non-autoregressive decoding, you may also be interested in STYLER [demo, code].

  2. Annotated Data Processing: This project shed light on how to handle the new dataset, even with a different language, for the successful training of non-autoregressive emotional TTS.

  3. English and Korean TTS: In addition to English, this project gives a broad view of treating Korean for the non-autoregressive TTS where the additional data processing must be considered under the language-specific features (e.g., training Montreal Forced Aligner with your own language and dataset). Please closely look into text/.

  4. Adopting Own Language: For those who are interested in adapting other languages, please refer to the "Training with your own dataset (own language)" section of the categorical branch.

Repository Structure

In this project, FastSpeech2 is adapted as a base non-autoregressive multi-speaker TTS framework, so it would be helpful to read the paper and code first (Also see FastSpeech2 branch).

<p align="center"> <img src="img/model.png" width="80%"> </p>

  1. Emotional TTS: Following branches contain implementations of the basic paradigm intorduced by Emotional End-to-End Neural Speech synthesizer.

    <p align="center"> <img src="img/model_emotional_tts.png" width="80%"> </p>
    • categorical branch: only conditioning categorical emotional descriptors (such as happy, sad, etc.)
    • continuous branch: conditioning continuous emotional descriptors (such as arousal, valence, etc.) in addition to categorical emotional descriptors

  2. Conversational TTS: Following branch contains implementation of Conversational End-to-End TTS for Voice Agent

    <p align="center"> <img src="img/model_conversational_tts.png" width="80%"> </p>

Citation

If you would like to use or refer to this implementation, please cite the repo.

@misc{lee2021expressive_fastspeech2,
  author = {Lee, Keon},
  title = {Expressive-FastSpeech2},
  year = {2021},
  publisher = {GitHub},
  journal = {GitHub repository},
  howpublished = {\url{https://github.com/keonlee9420/Expressive-FastSpeech2}}
}

References