fix bug for blank audio (#1656)

jianganghan

2024-04-25 f8b4924060bb849680925e81ddf1e10ca406c225

 funasr/models/sanm/model.py

@@ -10,6 +10,7 @@
from funasr.models.transformer.model import Transformer
from funasr.register import tables


@tables.register("model_classes", "SANM")
class SANM(Transformer):
    """