Use wider beams by default to avoid accuracy confusion

dsjonline · Jun 19, 2020 · 9d26014 · 9d26014
1 parent f6c115d
commit 9d26014
Showing 1 changed file with 8 additions and 8 deletions.
diff --git a/src/model.cc b/src/model.cc
@@ -125,10 +125,9 @@ Model::Model(const char *model_path) : model_path_str_(model_path) {
 void Model::ConfigureV1()
 {
     const char *extra_args[] = {
-        "--min-active=200",
-        "--max-active=3000",
-        "--beam=10.0",
-        "--lattice-beam=2.0",
+        "--max-active=7000",
+        "--beam=13.0",
+        "--lattice-beam=6.0",
         "--acoustic-scale=1.0",
 
         "--frame-subsampling-factor=3",
@@ -172,10 +171,6 @@ void Model::ConfigureV2()
     decodable_opts_.Register(&po);
     po.ReadConfigFile(model_path_str_ + "/conf/model.conf");
 
-    KALDI_LOG << "Decoding params beam=" << nnet3_decoding_config_.beam <<
-         " max-active=" << nnet3_decoding_config_.max_active <<
-         " lattice-beam=" << nnet3_decoding_config_.lattice_beam;
-    KALDI_LOG << "Silence phones " << endpoint_config_.silence_phones;
 
     nnet3_rxfilename_ = model_path_str_ + "/am/final.mdl";
     hclg_fst_rxfilename_ = model_path_str_ + "/graph/HCLG.fst";
@@ -194,6 +189,11 @@ void Model::ReadDataFiles()
 {
     struct stat buffer;
 
+    KALDI_LOG << "Decoding params beam=" << nnet3_decoding_config_.beam <<
+         " max-active=" << nnet3_decoding_config_.max_active <<
+         " lattice-beam=" << nnet3_decoding_config_.lattice_beam;
+    KALDI_LOG << "Silence phones " << endpoint_config_.silence_phones;
+
     feature_info_.feature_type = "mfcc";
     ReadConfigFromFile(mfcc_conf_rxfilename_, &feature_info_.mfcc_opts);
     feature_info_.mfcc_opts.frame_opts.allow_downsample = true; // It is safe to downsample