void LoadEchoEffect(EchoSettings parameters)
 {
     SetTrackBar(EchoFeedbackTrackBar, parameters.Feedback);
     SetTrackBar(EchoLeftDelayTrackBar, parameters.LeftDelay);
     SetTrackBar(EchoRightDelayTrackBar, parameters.RightDelay);
     SetTrackBar(EchoWetDryMixTrackBar, parameters.WetDryMix);
     EchoPanDelayCheckBox.Checked = (parameters.PanDelay == Echo.PanDelayMax);
 }
 void ApplyEchoEffect(ref EchoSettings parameters)
 {
     parameters.Feedback  = EchoFeedbackTrackBar.Value;
     parameters.LeftDelay = EchoLeftDelayTrackBar.Value;
     parameters.PanDelay  = EchoPanDelayCheckBox.Checked ? Echo.PanDelayMax : Echo.PanDelayMin;
     parameters.LeftDelay = EchoRightDelayTrackBar.Value;
     parameters.WetDryMix = EchoWetDryMixTrackBar.Value;
 }