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Show HN: Optimized CUDA forced alignment kernels. 10x – 1000x faster (github.com)

1 points by bthornbury ↗ HN
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.

2 comments

[ 1.6 ms ] story [ 2.0 ms ] thread
binsquare
For the layman, I was looking for data on correctness.

I found `This is measured agreement, not a promise of universal bitwise equivalence` which seems to me a bit wishy washy

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(comment deleted)