diff --git a/config_mgr.cpp b/config_mgr.cpp
index 40ffaba..b1a7401 100644
--- a/config_mgr.cpp
+++ b/config_mgr.cpp
@@ -314,9 +314,8 @@ void ConfigMgr::Save(QString & file_path) {
                         }
                         item["fre_domain_resolution"] = pressure_ptr->freband_output_item.fre_domain_resolution;
                         item["lines_number"] = pressure_ptr->freband_output_item.lines_number;
-                        number["config_params"] = item;
-                        variables["freband_output"] = number;
                         variables["processed_output"] = processed_output;
+                        variables["config_params"] = item;
 
                     } else if(ptr->base_config_[cid].channel_type == kVibAcc){
                         std::shared_ptr<AccVelVariable> av_ptr = std::dynamic_pointer_cast<AccVelVariable>(base_channel_ptr);
@@ -381,8 +380,8 @@ void ConfigMgr::Save(QString & file_path) {
                         }
                         item["fre_domain_resolution"] = av_ptr->freband_output_item.fre_domain_resolution;
                         item["lines_number"] = av_ptr->freband_output_item.lines_number;
-                        number["config_params"] = item;
                         variables["freband_output"] = number;
+                        variables["config_params"] = item;
 
                     }else if(ptr->base_config_[cid].channel_type == kVibVelocity){
                         std::shared_ptr<AccVelVariable> vel_ptr = std::dynamic_pointer_cast<AccVelVariable>(base_channel_ptr);
@@ -942,7 +941,7 @@ void ConfigMgr::Load(QString filename) {
                             output.end = number_obj["end"].toInt();
                             variable->freband_output[k] = output;
                         }
-                        config_params = freband_output_obj["config_params"].toObject();
+                        config_params = tmp_variable["config_params"].toObject();
                         if(!config_params.isEmpty()){
                             variable->freband_output_item.fre_domain_resolution = config_params["fre_domain_resolution"].toDouble();
                             variable->freband_output_item.lines_number = config_params["lines_number"].toInt();
@@ -1041,7 +1040,7 @@ void ConfigMgr::Load(QString filename) {
                             output.end = number_obj["end"].toInt();
                             variable->freband_output[k] = output;
                         }
-                        config_params = freband_output_obj["config_params"].toObject();
+                        config_params = tmp_variable["config_params"].toObject();
                         if(!config_params.isEmpty()){
                             variable->freband_output_item.fre_domain_resolution = config_params["fre_domain_resolution"].toDouble();
                             variable->freband_output_item.lines_number = config_params["lines_number"].toInt();