cleanup envelope parameter mappings

src/ui/MainWindow.cpp

@@ -11,16 +11,16 @@ MainWindow::MainWindow(QWidget *parent) :
     audio_(new AudioEngine()),
     keyboard_(audio_->noteQueue()) {
 
-    // Initialize UI
+    // initialize ui
     ui_->setupUi(this);
     setFocusPolicy(Qt::StrongFocus);
 
+    // connect scope
+    ui_->scopeWidget->setScopeBuffer(&audioEngine_->scopeBuffer());
+
     // Connect buttons to slots
     connect(ui_->buttonReset, &QPushButton::clicked, this, &MainWindow::onResetClicked);
 
-    // synth business
-    audio_->start();
-
     // connect envelopeGenerator
     ui_->envelopeOsc1Volume->init(EnvelopeId::Osc1Volume);
     connect(ui_->envelopeOsc1Volume, &EnvelopeGenerator::envelopeChanged,
@@ -28,6 +28,10 @@ MainWindow::MainWindow(QWidget *parent) :
             audio_->parameters()->set(EnvelopeId::Osc1Volume, a, d, s, r);
         });
     // this should be easy enough to put into a for each envelopeGenerator loop 
+
+    // synth business
+    audio_->start();
+
 }
 
 MainWindow::~MainWindow() {