fix list index out of range error (#2122)

Nixon

2024-10-09 5dbe6898cac191d12c487772d7336ab2b2a9c350

 funasr/models/normalize/utterance_mvn.py

@@ -5,6 +5,7 @@
from funasr.models.transformer.utils.nets_utils import make_pad_mask
from funasr.register import tables


@tables.register("normalize_classes", "UtteranceMVN")
class UtteranceMVN(torch.nn.Module):
    def __init__(