diff --git a/packages/client/src/components/ModuleNode.jsx b/packages/client/src/components/ModuleNode.jsx
index 3f171e0..a5bdd03 100644
--- a/packages/client/src/components/ModuleNode.jsx
+++ b/packages/client/src/components/ModuleNode.jsx
@@ -107,11 +107,20 @@ export default function ModuleNode({ mod, zoom, onStartConnect, onPortPosition }
 
           newValues[paramName] = baseValue + lfoVal * scale;
         } else if (srcMod.type === 'envelope') {
-          // Envelope: read the actual audio node gain value for real-time display
-          const audioEntry = getAudioNode(mod.id);
-          if (audioEntry?.node?.gain) {
-            const currentGain = audioEntry.node.gain.value;
-            newValues[paramName] = currentGain;
+          // Envelope: read the envelope's current level (0-1) from the source module
+          const envEntry = getAudioNode(srcMod.id);
+          if (envEntry?.node) {
+            const envValue = typeof envEntry.node.value === 'number' ? envEntry.node.value : 0;
+            const baseValue = params[paramName];
+            if (mod.type === 'vca' && paramName === 'gain') {
+              newValues[paramName] = envValue; // Envelope directly drives gain (0→1)
+            } else {
+              let scale;
+              if (mod.type === 'oscillator' && paramName === 'frequency') scale = baseValue * 0.5;
+              else if (mod.type === 'filter' && paramName === 'frequency') scale = baseValue;
+              else scale = baseValue || 1;
+              newValues[paramName] = baseValue + envValue * scale;
+            }
           }
         }
       }