diff --git a/libraries/audio/src/AudioHRTF.cpp b/libraries/audio/src/AudioHRTF.cpp
index 84e3622498..2a191b5821 100644
--- a/libraries/audio/src/AudioHRTF.cpp
+++ b/libraries/audio/src/AudioHRTF.cpp
@@ -392,8 +392,8 @@ static void crossfade_4x2(float* src, float* dst, const float* win, int numFrame
 // linear interpolation with gain
 static void interpolate(float* dst, const float* src0, const float* src1, float frac, float gain) {
 
-    __m128 f0 = _mm_set1_ps(HRTF_GAIN * gain * (1.0f - frac));
-    __m128 f1 = _mm_set1_ps(HRTF_GAIN * gain * frac);
+    __m128 f0 = _mm_set1_ps(gain * (1.0f - frac));
+    __m128 f1 = _mm_set1_ps(gain * frac);
 
     assert(HRTF_TAPS % 4 == 0);
 
@@ -861,6 +861,9 @@ void AudioHRTF::render(int16_t* input, float* output, int index, float azimuth,
     ALIGN32 float bqBuffer[4 * HRTF_BLOCK];                 // 4-channel (interleaved)
     int delay[4];                                           // 4-channel (interleaved)
 
+    // apply global and local gain adjustment
+    gain *= _gainAdjust;
+
     // to avoid polluting the cache, old filters are recomputed instead of stored
     setFilters(firCoef, bqCoef, delay, index, _azimuthState, _distanceState, _gainState, L0);
 
diff --git a/libraries/audio/src/AudioHRTF.h b/libraries/audio/src/AudioHRTF.h
index 08ae82b854..c9d053bec4 100644
--- a/libraries/audio/src/AudioHRTF.h
+++ b/libraries/audio/src/AudioHRTF.h
@@ -44,6 +44,11 @@ public:
     //
     void renderSilent(int16_t* input, float* output, int index, float azimuth, float distance, float gain, int numFrames);
 
+    //
+    // HRTF local gain adjustment
+    //
+    void setGainAdjustment(float gain) { _gainAdjust = HRTF_GAIN * gain; };
+
 private:
     AudioHRTF(const AudioHRTF&) = delete;
     AudioHRTF& operator=(const AudioHRTF&) = delete;
@@ -73,6 +78,9 @@ private:
     float _distanceState = 0.0f;
     float _gainState = 0.0f;
 
+    // global and local gain adjustment
+    float _gainAdjust = HRTF_GAIN;
+
     bool _silentState = false;
 };