1 files changed, 8 insertions(+), 6 deletions(-)

M src/main.c

@@ 45,16 45,18 @@ static float distort(const float x, const float d, const float a)
 {
 	float k;
 	if (x > 0.f) {
-		k = d*(1.f - a * 0.01);
+		k = d*(1.f - a * 0.01f);
 	} else {
 		k = d;
 	}
-
+	k = k - 10.f;
 	float y;
-	if (k < 0.01f) {
+	if (k < -10.f) {
 		y = x;
 	} else {
-		y = 1 / k * atanf(k * x);
+		float k_1 = powf(10.0f, -k*0.05f);
+		float k_2 = powf(10.0f, k*0.05f);
+		y = k_1 * atanf(k_2 * x);
 	}
 
 	return y;


@@ 69,9 71,9 @@ static float rms(const float d, const float a, DCFilter *filter)
 		const float y_nodc = blockdc(y, filter);
 		accm += y_nodc*y_nodc;
 	}
-	
+
 	const float result = sqrtf(accm / 49);
-	
+
 	return result;
 }