diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index d9c3177..389aacc 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -335,6 +335,11 @@
                 ((flags | AUDIO_OUTPUT_FLAG_DIRECT) & ~AUDIO_OUTPUT_FLAG_FAST);
     }
 
+    // force direct flag if HW A/V sync requested
+    if ((flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) != 0) {
+        flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT);
+    }
+
     if (flags & AUDIO_OUTPUT_FLAG_DIRECT) {
         if (audio_is_linear_pcm(format)) {
             mFrameSize = channelCount * audio_bytes_per_sample(format);