Can Balioglu

@freddy5566 done

no problem!

I think we might need to reconsider the generic metrics API in fairseq2 before merging this PR. Right now it pretty much uses torcheval which apparently uses a different approach...

> Hi, thanks! General question about the dataloader: This assumes that all files are saved as individual audio files in the file system. Is this approach scalable for future use,...

Let's keep the branch around for further data loading experiments, but closing this PR. Please continue doing further development on team repo.

Looks like this PR also includes the code changes of #749. One fundamental question though. If we are using HG dataset and evaluate HG models in this recipe, what is...