diff --git a/app/src/main/java/xdsopl/robot36/Decoder.java b/app/src/main/java/xdsopl/robot36/Decoder.java
index e8cf769..c739938 100644
--- a/app/src/main/java/xdsopl/robot36/Decoder.java
+++ b/app/src/main/java/xdsopl/robot36/Decoder.java
@@ -20,11 +20,9 @@ import android.graphics.Bitmap;
 import android.media.AudioFormat;
 import android.media.AudioRecord;
 import android.media.MediaRecorder;
-import android.os.Build;
 import android.support.v8.renderscript.Allocation;
 import android.support.v8.renderscript.Element;
 import android.support.v8.renderscript.RenderScript;
-import android.util.Log;
 
 public class Decoder {
     private boolean drawImage = true, quitThread = false;