- torch.cuda.amp.GradScaler(...) => torch.amp.GradScaler("cuda", ...) - torch.cuda.amp.autocast(...) => torch.amp.autocast("cuda", ...)
* added scripts for char-based lang prep training scripts * added `Zipformer` recipe for commonvoice --------- Co-authored-by: Fangjun Kuang <csukuangfj@gmail.com>