fix start timestamp in sentence_info (#2024)

lingji-yidong

2024-08-19 f43da18b5e097515c12438c70fc7918c29e5d0c8

 examples/industrial_data_pretraining/lcbnet/demo.sh

@@ -44,6 +44,7 @@
        ++input=[${_logdir}/wav.${JOB}.scp,${_logdir}/ocr.${JOB}.txt] \
        +data_type='["kaldi_ark", "text"]' \
        ++tokenizer_conf.bpemodel=${file_dir}/bpe.pt \
        ++normalize_conf.stats_file=${file_dir}/am.mvn \
        ++output_dir="${inference_dir}/${JOB}" \
        ++device="${inference_device}" \
        ++ncpu=1 \