Increase initial-lr from 0.06 to 0.075 and decrease lr-epochs from 3.5 to 3.

egs/librispeech/ASR/pruned_transducer_stateless7/train.py

@@ -231,7 +231,7 @@ def get_parser():
     parser.add_argument(
         "--initial-lr",
         type=float,
-        default=0.06,
+        default=0.075,
         help="The initial learning rate.  This value should not need "
         "to be changed.",
     )
@@ -247,7 +247,7 @@ def get_parser():
     parser.add_argument(
         "--lr-epochs",
         type=float,
-        default=3.5,
+        default=3,
         help="""Number of epochs that affects how rapidly the learning rate decreases.
         """,
     )