diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 406b832..2ea2325 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -11603,6 +11603,7 @@
 
 void BitPerfectThread::setTracksInternalMute(
         std::map<audio_port_handle_t, bool>* tracksInternalMute) {
+    audio_utils::lock_guard _l(mutex());
     for (auto& track : mTracks) {
         if (auto it = tracksInternalMute->find(track->portId()); it != tracksInternalMute->end()) {
             track->setInternalMute(it->second);
@@ -11619,6 +11620,11 @@
         // Return the bit perfect track if all other tracks are muted
         for (const auto& track : mActiveTracks) {
             if (track->isBitPerfect()) {
+                if (track->getInternalMute()) {
+                    // There can only be one bit-perfect client active. If it is mute internally,
+                    // there is no need to stream bit-perfectly.
+                    break;
+                }
                 bitPerfectTrack = track;
             } else if (track->getFinalVolume() != 0.f) {
                 allOtherTracksMuted = false;