add some comments

egs2/TEMPLATE/enh1/enh.sh

@@ -553,6 +553,7 @@ if ! "${skip_train}"; then
             # In current version, if you want to enable dynamic mixing in speech separation,
             # you need to prepare the training set manually. Here we assume all speech sources 
             # are collected in "spk1.scp", and other scp files (wav.scp, spk{N}.scp) are not used. 
+            log "Dynamic mixing is enabled, use spk1.scp as the source file list."
             _scp=spk1.scp
         else
             _scp=wav.scp

egs2/mini_an4/enh1/conf/train_with_dynamic_mixing.yaml

@@ -16,6 +16,11 @@ separator_conf:
     unit: 128
     dropout: 0.2
 
+# dynamic_mixing related
+# dynamic_mixing_gain_db:
+# The maximum random gain (in dB) for each source before the mixing.
+# The gain (in dB) of each source is unifromly sampled in
+# [-dynamic_mixing_gain_db, dynamic_mixing_gain_db]
 dynamic_mixing: True
 dynamic_mixing_gain_db: 2.0
 

egs2/wsj0_2mix/enh1/conf/tuning/train_enh_skim_tasnet_noncausal_dm.yaml

@@ -31,6 +31,11 @@ scheduler_conf:
     step_size: 2
     gamma: 0.97
 
+# dynamic_mixing related
+# dynamic_mixing_gain_db:
+# The maximum random gain (in dB) for each source before the mixing.
+# The gain (in dB) of each source is unifromly sampled in
+# [-dynamic_mixing_gain_db, dynamic_mixing_gain_db]
 dynamic_mixing: True
 dynamic_mixing_gain_db: 2.0