Support all Types of Languages

This release extends the toolkits functionality and provides new checkpoints.

New Features:

• support for all phonemes in the IPA standard through an extended lookup of articulatory features
• support for some suprasegmental markers in the IPA standard through parsing (tone, lengthening, primary stress)
• praat-parselmouth for greatly improved pitch extraction
• faster phonemizaton
• word boundaries are added, which are invisible to the aligner and the decoder, but can help the encoder in multilingual scenarios
• tonal languages added, tested and included into the pretraining (Chinese, Vietnamese)
• Scorer class to inspect data given a trained model and dataset cache (provided pretrained models can be used for this)
• intuitive controls for scaling durations and variance in pitch and energy
• divese bugfixes and speed increases

Note:

• This release breaks backwards compatibility. Make sure you are using the associated pretrained models. Old checkpoints and dataset caches become incompatible. Only HiFiGAN remains compatible.
• Work on upcoming releases is already in progress. Improved voice adaptation will be our next goal.
• To use the pretrained checkpoints, download them, create their corresponding directories and place them into your clone as follows (you have to rename the HiFiGAN and FastSpeech2 checkpoints once in place):

...
Models
└─ Aligner
      └─ aligner.pt
└─ FastSpeech2_Meta
      └─ best.pt
└─ HiFiGAN_combined
      └─ best.pt
...