Show HN: Optimized CUDA forced alignment kernels. 10x – 1000x faster

blog post: https://www.bryanthornbury.com/posts/fast-forced-alignment

github: https://github.com/brthor/fast-forced-aligner

I developed optimized CUDA kernels to speed up my forced alignment pipelines using Astra.

To my surprise, I was able to achieve speeds 10x - 1000x faster than popular existing open source options, including the torchaudio implementations I was using before.

I'm sharing them for anyone else who finds them useful.

The acceleration from AI is getting wild.