diff --git a/media/libaaudio/src/fifo/FifoControllerBase.cpp b/media/libaaudio/src/fifo/FifoControllerBase.cpp
index 14a2be1..9885cb0 100644
--- a/media/libaaudio/src/fifo/FifoControllerBase.cpp
+++ b/media/libaaudio/src/fifo/FifoControllerBase.cpp
@@ -59,5 +59,10 @@
 }
 
 void FifoControllerBase::setThreshold(fifo_frames_t threshold) {
+    if (threshold > mCapacity) {
+        threshold = mCapacity;
+    } else if (threshold < 0) {
+        threshold = 0;
+    }
     mThreshold = threshold;
 }
diff --git a/media/libaaudio/src/fifo/FifoControllerBase.h b/media/libaaudio/src/fifo/FifoControllerBase.h
index 64af777..1edb8a3 100644
--- a/media/libaaudio/src/fifo/FifoControllerBase.h
+++ b/media/libaaudio/src/fifo/FifoControllerBase.h
@@ -102,6 +102,9 @@
     /**
      * You can request that the buffer not be filled above a maximum
      * number of frames.
+     *
+     * The threshold will be clipped between zero and the buffer capacity.
+     *
      * @param threshold effective size of the buffer
      */
     void setThreshold(fifo_frames_t threshold);