# PaddleSpeech
## What is PaddleSpeech?
PaddleSpeech is an open-source toolkit on the PaddlePaddle platform for two critical tasks in Speech - Speech-to-Text (Automatic Speech Recognition, ASR) and Text-to-Speech Synthesis (TTS), with modules involving state-of-art and influential models.
## What can PaddleSpeech do?
### Speech-to-Text
PaddleSpeech ASR mainly consists of components below:
- Implementation of models and commonly used neural network layers.
- Dataset abstraction and common data preprocessing pipelines.
- Ready-to-run experiments.
PaddleSpeech ASR provides you with a complete ASR pipeline, including:
- Data Preparation
- Build vocabulary
- Compute Cepstral mean and variance normalization (CMVN)
- Featrue extraction
- linear
- fbank (also support kaldi feature)
- mfcc
- Acoustic Models
- Deepspeech2 (Streaming and Non-Streaming)
- Transformer (Streaming and Non-Streaming)
- Conformer (Streaming and Non-Streaming)
- Decoder
- ctc greedy search (used in DeepSpeech2, Transformer and Conformer)
- ctc beam search (used in DeepSpeech2, Transformer and Conformer)
- attention decoding (used in Transformer and Conformer)
- attention rescoring (used in Transformer and Conformer)
Speech-to-Text helps you train the ASR model very simply.
### Text-to-Speech
TTS mainly consists of components below:
- Implementation of models and commonly used neural network layers.
- Dataset abstraction and common data preprocessing pipelines.
- Ready-to-run experiments.
PaddleSpeech TTS provides you with a complete TTS pipeline, including:
- Text FrontEnd
- Rule based Chinese frontend.
- Acoustic Models
- FastSpeech2
- SpeedySpeech
- TransformerTTS
- Tacotron2
- Vocoders
- Multi Band MelGAN
- Parallel WaveGAN
- WaveFlow
- Voice Cloning
- Transfer Learning from Speaker Verification to Multispeaker Text-to-Speech Synthesis
- GE2E
Text-to-Speech helps you to train TTS models with simple commands.
