Option for using CUDA cores

[Chewbacca96]

Hello!

Did not find info in documentation about how to use CUDA cores in scriba.

If there is possibility, i would like this feature to be added, because in comparison WhisperX with CUDA transcribes much faster.

[AlexanderAbramovPav]

Thanks for the suggestion! #10 adds --device cpu|cuda|auto to transcribe.sh: --device cuda (or auto, which picks CUDA when torch sees a GPU) runs WhisperX ASR and alignment on the GPU. The default stays cpu, and --diar-device cuda already covered diarization. We haven't tested it on Linux/CUDA ourselves, so feedback from a real GPU run is very welcome.