diff --git a/core/jni/android_media_AudioRecord.cpp b/core/jni/android_media_AudioRecord.cpp
index 68a8de8..b34dbce 100644
--- a/core/jni/android_media_AudioRecord.cpp
+++ b/core/jni/android_media_AudioRecord.cpp
@@ -203,7 +203,7 @@
         format,        // word length, PCM
         channels,
         frameCount,
-        0,             // flags
+        (AudioRecord::record_flags) 0,  // flags
         recorderCallback,// callback_t
         lpCallbackData,// void* user
         0,             // notificationFrames,
diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h
index 4fbeb38..7df6668 100644
--- a/include/media/AudioRecord.h
+++ b/include/media/AudioRecord.h
@@ -143,6 +143,8 @@
      * user                Context for use by the callback receiver.
      */
 
+     // FIXME consider removing this alias and replacing it by audio_in_acoustics_t
+     //       or removing the parameter entirely if it is unused
      enum record_flags {
          RECORD_AGC_ENABLE = AUDIO_IN_ACOUSTICS_AGC_ENABLE,
          RECORD_NS_ENABLE  = AUDIO_IN_ACOUSTICS_NS_ENABLE,
@@ -154,7 +156,7 @@
                                     audio_format_t format = AUDIO_FORMAT_DEFAULT,
                                     uint32_t channelMask = AUDIO_CHANNEL_IN_MONO,
                                     int frameCount      = 0,
-                                    uint32_t flags      = 0,
+                                    record_flags flags  = (record_flags) 0,
                                     callback_t cbf = NULL,
                                     void* user = NULL,
                                     int notificationFrames = 0,
@@ -180,7 +182,7 @@
                             audio_format_t format = AUDIO_FORMAT_DEFAULT,
                             uint32_t channelMask = AUDIO_CHANNEL_IN_MONO,
                             int frameCount      = 0,
-                            uint32_t flags      = 0,
+                            record_flags flags  = (record_flags) 0,
                             callback_t cbf = NULL,
                             void* user = NULL,
                             int notificationFrames = 0,
@@ -383,7 +385,7 @@
     bool                    mMarkerReached;
     uint32_t                mNewPosition;
     uint32_t                mUpdatePeriod;
-    uint32_t                mFlags;
+    record_flags            mFlags;
     uint32_t                mChannelMask;
     audio_io_handle_t       mInput;
     int                     mSessionId;
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
index 943f3af..22c3a18 100644
--- a/media/libmedia/AudioRecord.cpp
+++ b/media/libmedia/AudioRecord.cpp
@@ -89,7 +89,7 @@
         audio_format_t format,
         uint32_t channelMask,
         int frameCount,
-        uint32_t flags,
+        record_flags flags,
         callback_t cbf,
         void* user,
         int notificationFrames,
@@ -124,7 +124,7 @@
         audio_format_t format,
         uint32_t channelMask,
         int frameCount,
-        uint32_t flags,
+        record_flags flags,
         callback_t cbf,
         void* user,
         int notificationFrames,
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
index 5b2ea1f..cbe709b 100644
--- a/media/libstagefright/AudioSource.cpp
+++ b/media/libstagefright/AudioSource.cpp
@@ -56,9 +56,10 @@
 
     ALOGV("sampleRate: %d, channels: %d", sampleRate, channels);
     CHECK(channels == 1 || channels == 2);
-    uint32_t flags = AudioRecord::RECORD_AGC_ENABLE |
+    AudioRecord::record_flags flags = (AudioRecord::record_flags)
+                    (AudioRecord::RECORD_AGC_ENABLE |
                      AudioRecord::RECORD_NS_ENABLE  |
-                     AudioRecord::RECORD_IIR_ENABLE;
+                     AudioRecord::RECORD_IIR_ENABLE);
     mRecord = new AudioRecord(
                 inputSource, sampleRate, AUDIO_FORMAT_PCM_16_BIT,
                 channels > 1? AUDIO_CHANNEL_IN_STEREO: AUDIO_CHANNEL_IN_MONO,