diff --git a/dom/media/VideoUtils.cpp b/dom/media/VideoUtils.cpp
index 9ad4c0c35677..6a91b54a8eaf 100644
--- a/dom/media/VideoUtils.cpp
+++ b/dom/media/VideoUtils.cpp
@@ -148,12 +148,12 @@ int DownmixAudioToStereo(mozilla::AudioDataValue* buffer,
 #ifdef MOZ_SAMPLE_TYPE_FLOAT32
   // Downmix matrix. Per-row normalization 1 for rows 3,4 and 2 for rows 5-8.
   static const float dmatrix[6][8][2]= {
-      /*3*/{{0.5858f,0},{0.4142f,0.4142f},{0,     0.5858f}},
-      /*4*/{{0.4226f,0},{0,      0.4226f},{0.366f,0.2114f},{0.2114f,0.366f}},
-      /*5*/{{0.6510f,0},{0.4600f,0.4600f},{0,     0.6510f},{0.5636f,0.3254f},{0.3254f,0.5636f}},
-      /*6*/{{0.5290f,0},{0.3741f,0.3741f},{0,     0.5290f},{0.4582f,0.2645f},{0.2645f,0.4582f},{0.3741f,0.3741f}},
-      /*7*/{{0.4553f,0},{0.3220f,0.3220f},{0,     0.4553f},{0.3943f,0.2277f},{0.2277f,0.3943f},{0.2788f,0.2788f},{0.3220f,0.3220f}},
-      /*8*/{{0.3886f,0},{0.2748f,0.2748f},{0,     0.3886f},{0.3366f,0.1943f},{0.1943f,0.3366f},{0.3366f,0.1943f},{0.1943f,0.3366f},{0.2748f,0.2748f}},
+      /*3*/{{0.5858f,0},{0,0.5858f},{0.4142f,0.4142f}},
+      /*4*/{{0.4226f,0},{0,0.4226f},{0.366f, 0.2114f},{0.2114f,0.366f}},
+      /*5*/{{0.6510f,0},{0,0.6510f},{0.4600f,0.4600f},{0.5636f,0.3254f},{0.3254f,0.5636f}},
+      /*6*/{{0.5290f,0},{0,0.5290f},{0.3741f,0.3741f},{0.3741f,0.3741f},{0.4582f,0.2645f},{0.2645f,0.4582f}},
+      /*7*/{{0.4553f,0},{0,0.4553f},{0.3220f,0.3220f},{0.3220f,0.3220f},{0.2788f,0.2788f},{0.3943f,0.2277f},{0.2277f,0.3943f}},
+      /*8*/{{0.3886f,0},{0,0.3886f},{0.2748f,0.2748f},{0.2748f,0.2748f},{0.3366f,0.1943f},{0.1943f,0.3366f},{0.3366f,0.1943f},{0.1943f,0.3366f}},
   };
   // Re-write the buffer with downmixed data
   for (uint32_t i = 0; i < frames; i++) {
@@ -170,12 +170,12 @@ int DownmixAudioToStereo(mozilla::AudioDataValue* buffer,
   // Downmix matrix. Per-row normalization 1 for rows 3,4 and 2 for rows 5-8.
   // Coefficients in Q14.
   static const int16_t dmatrix[6][8][2]= {
-      /*3*/{{9598, 0},{6786,6786},{0,   9598}},
+      /*3*/{{9598, 0},{0,   9598},{6786,6786}},
       /*4*/{{6925, 0},{0,   6925},{5997,3462},{3462,5997}},
-      /*5*/{{10663,0},{7540,7540},{0,  10663},{9234,5331},{5331,9234}},
-      /*6*/{{8668, 0},{6129,6129},{0,   8668},{7507,4335},{4335,7507},{6129,6129}},
-      /*7*/{{7459, 0},{5275,5275},{0,   7459},{6460,3731},{3731,6460},{4568,4568},{5275,5275}},
-      /*8*/{{6368, 0},{4502,4502},{0,   6368},{5514,3184},{3184,5514},{5514,3184},{3184,5514},{4502,4502}}
+      /*5*/{{10663,0},{0,  10663},{7540,7540},{9234,5331},{5331,9234}},
+      /*6*/{{8668, 0},{0,   8668},{6129,6129},{6129,6129},{7507,4335},{4335,7507}},
+      /*7*/{{7459, 0},{0,   7459},{5275,5275},{5275,5275},{4568,4568},{6460,3731},{3731,6460}},
+      /*8*/{{6368, 0},{0,   6368},{4502,4502},{4502,4502},{5514,3184},{3184,5514},{5514,3184},{3184,5514}}
   };
   // Re-write the buffer with downmixed data
   for (uint32_t i = 0; i < frames; i++) {