Refactor

Util/AudioSpectrumGenerator.cs

@@ -75,13 +75,7 @@ namespace ADOFAIRenderer.Util
 
         public static void GetSpectrumData(float[] samples, int channel, FFTWindow window)
         {
-            if (AudioClipData == null || AudioClipData.Length == 0 || scrConductor.instance == null)
-            {
-                Array.Clear(samples, 0, samples.Length);
-                return;
-            }
-
-            if (!scrConductor.instance.hasSongStarted || scrConductor.instance.song == null)
+            if (AudioClipData == null || AudioClipData.Length == 0 || !scrConductor.instance || !scrConductor.instance.hasSongStarted || !scrConductor.instance.song)
             {
                 Array.Clear(samples, 0, samples.Length);
                 return;