diff --git a/src/timeline2/view/qml/timelineitems.cpp b/src/timeline2/view/qml/timelineitems.cpp
--- a/src/timeline2/view/qml/timelineitems.cpp
+++ b/src/timeline2/view/qml/timelineitems.cpp
@@ -26,6 +26,7 @@
 #include <QPainter>
 #include <QPainterPath>
 #include <QQuickPaintedItem>
+#include <QtMath>
 #include <cmath>
 
 const QStringList chanelNames{"L", "R", "C", "LFE", "BL", "BR"};
@@ -96,13 +97,13 @@
         //setRenderTarget(QQuickPaintedItem::FramebufferObject);
         //setMipmap(true);
         setTextureSize(QSize(1, 1));
-        connect(this, &TimelineWaveform::levelsChanged, [&]() {
+        connect(this, &TimelineWaveform::levelsChanged, [this]() {
             if (!m_binId.isEmpty() && m_audioLevels.isEmpty()) {
-                m_audioLevels = pCore->projectItemModel()->getAudioLevelsByBinID(m_binId);
+                updateAudioLevels();
                 update();
             }
         });
-        connect(this, &TimelineWaveform::propertyChanged, [&]() {
+        connect(this, &TimelineWaveform::propertyChanged, [this]() {
             update();
         });
     }
@@ -129,7 +130,7 @@
             return;
         }
         if (m_audioLevels.isEmpty()) {
-            m_audioLevels = pCore->projectItemModel()->getAudioLevelsByBinID(m_binId);
+            updateAudioLevels();
             if (m_audioLevels.isEmpty()) {
                 return;
             }
@@ -156,9 +157,9 @@
                     continue;
                 }
                 lastIdx = idx;
-                level = m_audioLevels.at(idx) / 256;
+                level = m_audioLevels.at(idx);
                 for (int j = 1; j < m_channels; j++) {
-                    level = qMax(level, m_audioLevels.at(idx + j) / 256);
+                    level = qMax(level, m_audioLevels.at(idx + j));
                 }
                 path.lineTo(i, height() - level * height());
             }
@@ -220,6 +221,17 @@
     void audioChannelsChanged();
 
 private:
+    void updateAudioLevels()
+    {
+        m_audioLevels = pCore->projectItemModel()->getAudioLevelsByBinID(m_binId);
+        if (m_audioLevels.isEmpty()) {
+            return;
+        }
+
+        const double maxLevel = *std::max_element(m_audioLevels.begin(), m_audioLevels.end());
+        for (double &v : m_audioLevels) v /= maxLevel;
+    }
+
     QVector<double> m_audioLevels;
     int m_inPoint;
     int m_outPoint;