18 Insights from Mass-Producing Voice Models — From Diffusion TTS Voice Design to Training Corpus Creation and Quality Gate Pitfalls

📝 Originally published (in Japanese) at forge.workstyle.tech. This is a record of designing voices from single-line captions, automatically creating a learning corpus, and passing all 12 role-specific voices (narrator/counselor/sales/presenter/operator/MC for both men and women) through full inspection. I wrote about the failures I encountered...