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

Hacker News New2026-10-31 05:060 views

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.

Comments URL: https://news.ycombinator.com/item?id=50310134

Points: 1

# Comments: 0

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

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