Fixed limits on gate

Signed-off-by: Damien Zammit <damien@zamaudio.com>

2 files changed, 12 insertions, 4 deletions

diff --git a/plugins/ZamGate/ZamGatePlugin.cpp b/plugins/ZamGate/ZamGatePlugin.cpp
index 5376a1e..377c2c0 100644
--- a/plugins/ZamGate/ZamGatePlugin.cpp
+++ b/plugins/ZamGate/ZamGatePlugin.cpp
@@ -251,13 +251,14 @@ void ZamGatePlugin::d_run(const float** inputs, float** outputs, uint32_t frames
                         if (gl > 1.f)
                                 gl = 1.f;
                 }
-                outputs[0][i] = tanh(2.0*gl) * from_dB(makeup) * inputs[0][i];
-                outputs[1][i] = tanh(2.0*gr) * from_dB(makeup) * inputs[1][i];
                 gatestatel = gl;
                 gatestater = gr;
+                outputs[0][i] = tanh(2.0*gatestatel) * from_dB(makeup) * inputs[0][i];
+                outputs[1][i] = tanh(2.0*gatestater) * from_dB(makeup) * inputs[1][i];
 		ming = std::max(gr, gl);
-		gainr = -to_dB(ming);
-		outlevel = to_dB(absample);
+		gainr = (ming > 0) ? sanitize_denormal(-to_dB(ming)) : 40.0;
+		gainr = std::min(gainr, 40.f);
+		outlevel = (absample > 0) ? to_dB(absample) : -60.0;
 	}
 }
 
diff --git a/plugins/ZamGate/ZamGatePlugin.hpp b/plugins/ZamGate/ZamGatePlugin.hpp
index e7eeed5..45eef8a 100644
--- a/plugins/ZamGate/ZamGatePlugin.hpp
+++ b/plugins/ZamGate/ZamGatePlugin.hpp
@@ -90,6 +90,13 @@ protected:
     void d_run(const float** inputs, float** outputs, uint32_t frames) override;
 
 	static inline float
+	sanitize_denormal(float v) {
+	        if(!std::isnormal(v) || !std::isfinite(v))
+	                return 0.f;
+	        return v;
+	}
+
+	static inline float
 	from_dB(float gdb) {
 	        return (exp(gdb/20.f*log(10.f)));
 	}