diff --git a/include/system/audio.h b/include/system/audio.h
index cc4137e..c7cd109 100644
--- a/include/system/audio.h
+++ b/include/system/audio.h
@@ -229,6 +229,8 @@
     AUDIO_FORMAT_HE_AAC_V2           = 0x06000000UL,
     AUDIO_FORMAT_VORBIS              = 0x07000000UL,
     AUDIO_FORMAT_OPUS                = 0x08000000UL,
+    AUDIO_FORMAT_AC3                 = 0x09000000UL,
+    AUDIO_FORMAT_E_AC3               = 0x0A000000UL,
     AUDIO_FORMAT_MAIN_MASK           = 0xFF000000UL,
     AUDIO_FORMAT_SUB_MASK            = 0x00FFFFFFUL,
 
@@ -1009,6 +1011,9 @@
     case AUDIO_FORMAT_HE_AAC_V1:
     case AUDIO_FORMAT_HE_AAC_V2:
     case AUDIO_FORMAT_VORBIS:
+    case AUDIO_FORMAT_OPUS:
+    case AUDIO_FORMAT_AC3:
+    case AUDIO_FORMAT_E_AC3:
         return true;
     default:
         return false;