2. NnsvsNeural network-based singing voice synthesis library for research
4. Deepvoice3 pytorchPyTorch implementation of convolutional neural networks-based text-to-speech synthesis models
6. SptkA modified version of Speech Signal Processing Toolkit (SPTK)
7. GosspSpeech Signal Processing for Go (not maintained)
8. Voiceconversion.jl[Deprecated] Statistical Voice Conversion in Julia. See the website link for new library
11. StavStatistical voice conversion written in Go for signal processing backend, Python for model training and parameter conversions
12. GanttsPyTorch implementation of GAN-based text-to-speech synthesis and voice conversion (VC)
13. NnmnkwiiLibrary to build speech synthesis systems designed for easy and fast prototyping.
14. PysptkA python wrapper for Speech Signal Processing Toolkit (SPTK).
15. nnmnkwii galleryA collection of examples demonstrating how we can build speech synthesis systems using nnmnkwii.
16. ttslearnttslearn: Library for Pythonで学ぶ音声合成 (Text-to-speech with Python)
17. nnetA small collection of neural network algorithms in Go (no longer maintained)
20. sinsyA fork of sinsy: HMM/DNN-based singing voice synthesis system