insane engine sound

Core/SoundProcessor.cs

@@ -82,6 +82,7 @@ namespace FluidSim.Core
         {
             // 1. Monopole source: d(mdot)/dt
             double derivative = (massFlow - lastMassFlow) / dt;
+            derivative = Math.Clamp(derivative, -500, 500);
             lastMassFlow = massFlow;
             float monopole = (float)(derivative * masterGain);
 
@@ -115,7 +116,7 @@ namespace FluidSim.Core
 
             // 6. Dry/wet mix
             float output = resonant * 0.7f + wet * 0.3f;
-            output = Math.Clamp(output, -1f, 1f);
+            output = MathF.Tanh(output);
             return output;
         }
     }