diff --git a/core/jni/android_media_AudioRecord.cpp b/core/jni/android_media_AudioRecord.cpp
index 9fced03151021..44e43e71e1aa2 100644
--- a/core/jni/android_media_AudioRecord.cpp
+++ b/core/jni/android_media_AudioRecord.cpp
@@ -18,22 +18,12 @@
 
 #define LOG_TAG "AudioRecord-JNI"
 
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <math.h>
-
 #include <jni.h>
 #include <JNIHelp.h>
 #include <android_runtime/AndroidRuntime.h>
 
 #include <utils/Log.h>
-#include <utils/SortedVector.h>
-#include <utils/threads.h>
 #include <media/AudioRecord.h>
-#include <media/mediarecorder.h>
-
-#include <cutils/bitops.h>
 
 #include <system/audio.h>
 
diff --git a/core/jni/android_media_AudioSystem.cpp b/core/jni/android_media_AudioSystem.cpp
index 139b7be2a6085..d6c5e4ffecb71 100644
--- a/core/jni/android_media_AudioSystem.cpp
+++ b/core/jni/android_media_AudioSystem.cpp
@@ -18,11 +18,6 @@
 #define LOG_TAG "AudioSystem"
 #include <utils/Log.h>
 
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <math.h>
-
 #include <jni.h>
 #include <JNIHelp.h>
 #include <android_runtime/AndroidRuntime.h>
diff --git a/core/jni/android_media_AudioTrack.cpp b/core/jni/android_media_AudioTrack.cpp
index 942d33fadcc53..96be5694a121e 100644
--- a/core/jni/android_media_AudioTrack.cpp
+++ b/core/jni/android_media_AudioTrack.cpp
@@ -17,11 +17,6 @@
 
 #define LOG_TAG "AudioTrack-JNI"
 
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <math.h>
-
 #include <jni.h>
 #include <JNIHelp.h>
 #include <android_runtime/AndroidRuntime.h>
@@ -33,8 +28,6 @@
 #include <binder/MemoryHeapBase.h>
 #include <binder/MemoryBase.h>
 
-#include <cutils/bitops.h>
-
 #include <system/audio.h>
 
 // ----------------------------------------------------------------------------