diff --git a/library/src/main/java/com/semantive/waveformandroid/waveform/soundfile/CheapWAV.java b/library/src/main/java/com/semantive/waveformandroid/waveform/soundfile/CheapWAV.java
index 1a34b88..6b6dd37 100644
--- a/library/src/main/java/com/semantive/waveformandroid/waveform/soundfile/CheapWAV.java
+++ b/library/src/main/java/com/semantive/waveformandroid/waveform/soundfile/CheapWAV.java
@@ -97,7 +97,7 @@ public void ReadFile(File inputFile) throws java.io.IOException {
             mChannels = wavFile.getNumChannels();
 
             int gain, value;
-            int[] buffer = new int[getSamplesPerFrame()];
+            int[] buffer = new int[getSamplesPerFrame()*mChannels];
             for (int i = 0; i < mNumFrames; i++) {
                 gain = -1;
                 wavFile.readFrames(buffer, getSamplesPerFrame());