diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
index 83b4d13..a8f4605 100644
--- a/include/media/IAudioFlinger.h
+++ b/include/media/IAudioFlinger.h
@@ -89,6 +89,7 @@
                                 track_flags_t *flags,
                                 pid_t tid,  // -1 means unused, otherwise must be valid non-0
                                 int *sessionId,
+                                size_t *notificationFrames,
                                 sp<IMemory>& cblk,
                                 sp<IMemory>& buffers,   // return value 0 means it follows cblk
                                 status_t *status) = 0;
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
index f865d38..3ee5809 100644
--- a/media/libmedia/AudioRecord.cpp
+++ b/media/libmedia/AudioRecord.cpp
@@ -495,6 +495,10 @@
     size_t temp = frameCount;   // temp may be replaced by a revised value of frameCount,
                                 // but we will still need the original value also
     int originalSessionId = mSessionId;
+
+    // The notification frame count is the period between callbacks, as suggested by the server.
+    size_t notificationFrames;
+
     sp<IMemory> iMem;           // for cblk
     sp<IMemory> bufferMem;
     sp<IAudioRecord> record = audioFlinger->openRecord(input,
@@ -504,6 +508,7 @@
                                                        &trackFlags,
                                                        tid,
                                                        &mSessionId,
+                                                       &notificationFrames,
                                                        iMem,
                                                        bufferMem,
                                                        &status);
diff --git a/media/libmedia/IAudioFlinger.cpp b/media/libmedia/IAudioFlinger.cpp
index 687fa76..5cf42f7 100644
--- a/media/libmedia/IAudioFlinger.cpp
+++ b/media/libmedia/IAudioFlinger.cpp
@@ -175,6 +175,7 @@
                                 track_flags_t *flags,
                                 pid_t tid,
                                 int *sessionId,
+                                size_t *notificationFrames,
                                 sp<IMemory>& cblk,
                                 sp<IMemory>& buffers,
                                 status_t *status)
@@ -214,6 +215,10 @@
             if (sessionId != NULL) {
                 *sessionId = lSessionId;
             }
+            size_t lNotificationFrames = (size_t) reply.readInt64();
+            if (notificationFrames != NULL) {
+                *notificationFrames = lNotificationFrames;
+            }
             lStatus = reply.readInt32();
             record = interface_cast<IAudioRecord>(reply.readStrongBinder());
             cblk = interface_cast<IMemory>(reply.readStrongBinder());
@@ -959,16 +964,19 @@
             track_flags_t flags = (track_flags_t) data.readInt32();
             pid_t tid = (pid_t) data.readInt32();
             int sessionId = data.readInt32();
+            size_t notificationFrames = 0;
             sp<IMemory> cblk;
             sp<IMemory> buffers;
             status_t status;
             sp<IAudioRecord> record = openRecord(input,
                     sampleRate, format, channelMask, &frameCount, &flags, tid, &sessionId,
+                    &notificationFrames,
                     cblk, buffers, &status);
             LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR));
             reply->writeInt64(frameCount);
             reply->writeInt32(flags);
             reply->writeInt32(sessionId);
+            reply->writeInt64(notificationFrames);
             reply->writeInt32(status);
             reply->writeStrongBinder(record->asBinder());
             reply->writeStrongBinder(cblk->asBinder());
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index a269886..2124f85 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1333,6 +1333,7 @@
         IAudioFlinger::track_flags_t *flags,
         pid_t tid,
         int *sessionId,
+        size_t *notificationFrames,
         sp<IMemory>& cblk,
         sp<IMemory>& buffers,
         status_t *status)
@@ -1407,7 +1408,7 @@
 
         // TODO: the uid should be passed in as a parameter to openRecord
         recordTrack = thread->createRecordTrack_l(client, sampleRate, format, channelMask,
-                                                  frameCount, lSessionId,
+                                                  frameCount, lSessionId, notificationFrames,
                                                   IPCThreadState::self()->getCallingUid(),
                                                   flags, tid, &lStatus);
         LOG_ALWAYS_FATAL_IF((lStatus == NO_ERROR) && (recordTrack == 0));
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 1ccef24..4df0921 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -120,6 +120,7 @@
                                 IAudioFlinger::track_flags_t *flags,
                                 pid_t tid,
                                 int *sessionId,
+                                size_t *notificationFrames,
                                 sp<IMemory>& cblk,
                                 sp<IMemory>& buffers,
                                 status_t *status /*non-NULL*/);
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 324f3ae..11d13a8 100755
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -5443,6 +5443,7 @@
         audio_channel_mask_t channelMask,
         size_t *pFrameCount,
         int sessionId,
+        size_t *notificationFrames,
         int uid,
         IAudioFlinger::track_flags_t *flags,
         pid_t tid,
@@ -5512,6 +5513,7 @@
       }
     }
     *pFrameCount = frameCount;
+    *notificationFrames = 0;    // FIXME implement
 
     lStatus = initCheck();
     if (lStatus != NO_ERROR) {
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index 3eb1eb9..c265833 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -1072,6 +1072,7 @@
                     audio_channel_mask_t channelMask,
                     size_t *pFrameCount,
                     int sessionId,
+                    size_t *notificationFrames,
                     int uid,
                     IAudioFlinger::track_flags_t *flags,
                     pid_t tid,