spectrum

huailiang · Apr 30, 2020 · 7e5a56d · 7e5a56d
1 parent bff0c8e
commit 7e5a56d
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Showing 2 changed files with 7 additions and 5 deletions.
diff --git a/Assets/LipSync/Scripts/AudioVisualization.cs b/Assets/LipSync/Scripts/AudioVisualization.cs
@@ -2,6 +2,8 @@
 
 
 /*
+ * 均衡器可视化
+ * https://baike.baidu.com/item/均衡器/3136238
  * 在线声谱分析
  *  https://bideyuanli.com/pp
  */
@@ -15,7 +17,7 @@ public class AudioVisualization
         float[] bandBuffer = new float[band_cnt];
         float[] bufferDecrease = new float[band_cnt];
         float[] freqBandHighest = new float[band_cnt];
-        public static float[] AudioBandBuffer = new float[band_cnt];
+        float[] AudioBandBuffer = new float[band_cnt];
 
         Renderer[] renders = new Renderer[band_cnt];
         Material[] mat = new Material[band_cnt];
@@ -95,13 +97,13 @@ void VisulizeBand()
         {
             for (int i = 0; i < band_cnt; i++)
             {
-                float v = Mathf.Max(0, AudioVisualization.AudioBandBuffer[i]);
+                float v = Mathf.Max(0, AudioBandBuffer[i]);
                 float y = v * 8 + 0.1f;
                 if (!float.IsNaN(y))
                 {
                     Vector3 scale = renders[i].transform.localScale;
                     renders[i].transform.localScale = new Vector3(scale.x, y, scale.z);
-                    Color color = new Color(v, v, v);
+                    Color color = new Color(0, 0, v);
                     mat[i].SetColor("_EmissionColor", color);
                 }
             }

diff --git a/Assets/LipSync/Scripts/Core/MathToolBox.cs b/Assets/LipSync/Scripts/Core/MathToolBox.cs
@@ -96,9 +96,9 @@ public static void FindLocalLargestPeaks(float[] data, float[] peakValue, int[]
                 }
                 else
                 {
-                    if (isIncreasing)
+                    if (isIncreasing) 
                     {
-                        if (lastPeak < data[i]) // Peak found. 找到峰值
+                        if (lastPeak < data[i]) // Peak found. 找到峰值, 一般fft窗口有两三个峰值
                         {
                             isPeakIncreasing = true;
                         }