diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index d2b4f32..37d47aa 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -7338,6 +7338,27 @@
     if (status != INVALID_OPERATION) {
         updateHalSupportedLatencyModes_l();
     }
+
+    // update priority if specified.
+    constexpr int32_t kRTPriorityMin = 1;
+    constexpr int32_t kRTPriorityMax = 3;
+    const int32_t priorityBoost =
+            property_get_int32("audio.spatializer.priority", kRTPriorityMin);
+    if (priorityBoost >= kRTPriorityMin && priorityBoost <= kRTPriorityMax) {
+        const pid_t pid = getpid();
+        const pid_t tid = getTid();
+
+        if (tid == -1) {
+            // Unusual: PlaybackThread::onFirstRef() should set the threadLoop running.
+            ALOGW("%s: audio.spatializer.priority %d ignored, thread not running",
+                    __func__, priorityBoost);
+        } else {
+            ALOGD("%s: audio.spatializer.priority %d, allowing real time for pid %d  tid %d",
+                    __func__, priorityBoost, pid, tid);
+            sendPrioConfigEvent_l(pid, tid, priorityBoost, false /*forApp*/);
+            stream()->setHalThreadPriority(priorityBoost);
+        }
+    }
 }
 
 status_t AudioFlinger::SpatializerThread::createAudioPatch_l(const struct audio_patch *patch,