Update decode.py

Resolve issues with abnormal output formats and inaccurate error rates

egs/aishell/ASR/pruned_transducer_stateless7_streaming/decode.py

@@ -492,15 +492,15 @@ def save_results(
     for key, results in results_dict.items():
         recog_path = params.res_dir / f"recogs-{test_set_name}-{params.suffix}.txt"
         results = sorted(results)
-        store_transcripts(filename=recog_path, texts=results)
+        store_transcripts(filename=recog_path, texts=results, char_level=True)
         logging.info(f"The transcripts are stored in {recog_path}")
 
         # The following prints out WERs, per-word error statistics and aligned
         # ref/hyp pairs.
         errs_filename = params.res_dir / f"errs-{test_set_name}-{params.suffix}.txt"
         with open(errs_filename, "w") as f:
             wer = write_error_stats(
-                f, f"{test_set_name}-{key}", results, enable_log=True
+                f, f"{test_set_name}-{key}", results, enable_log=True,  compute_CER=True
             )
             test_set_wers[key] = wer