fix loss normalization for ddp training

haoneng.lhn

2023-12-08 acb9a0fec8d8a4dabeedcbb8e08c26f66d7083f0

 egs_modelscope/asr_vad_punc/speech_paraformer-large-vad-punc_asr_nat-en-16k-common-vocab10020/infer.sh

@@ -6,7 +6,7 @@

stage=1
stop_stage=2
model="damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch"
model="damo/speech_paraformer-large-vad-punc_asr_nat-en-16k-common-vocab10020"
data_dir="./data/test"
output_dir="./results"
batch_size=64