diff --git a/src/dusk/audio/DuskAudioSystem.cpp b/src/dusk/audio/DuskAudioSystem.cpp
index 71b1944fd2..93e161512f 100644
--- a/src/dusk/audio/DuskAudioSystem.cpp
+++ b/src/dusk/audio/DuskAudioSystem.cpp
@@ -138,6 +138,7 @@ void RenderAudioSubframe() {
         // NOTE: In the real game, this gets called on the entire audio frame, rather than the subframe.
         // That's probably more efficient, but I didn't wanna change the code to calculate the
         // entire audio buffers at once.
+        // This is only used for the movie player, and it seems to work fine with the smaller calls.
         const auto mixData = JASDriver::extMixCallback(DSP_SUBFRAME_SIZE);
         if (mixData) {
             for (int i = 0; i < OutInterleaveBuffer.size(); i++) {