text-to-speech offline dtw machine-translation language-learning pronunciation python3 speech-recognition tkinter ipa speech-to-text espeak-ng phoneme wav2vec2 llama-cpp local-llm nllb pronunciation-trainer kokoro-tts accent-training

python japanese language-learning pronunciation audio-analysis wav no-dependencies mora speech-analysis pitch-accent local-first japanese-learning practice-tool learning-tools accent-training f0-tracking