+ wxStaticText* _gain_label;
+ wxStaticText* _gain_db_label;
+ ContentSpinCtrlDouble<AudioContent>* _gain;
+ wxButton* _gain_calculate_button;
+ wxStaticText* _peak;
+ wxStaticText* _delay_label;
+ wxStaticText* _delay_ms_label;
+ ContentSpinCtrl<AudioContent>* _delay;