diff --git a/OpenAudio_ArduinoLibrary.h b/OpenAudio_ArduinoLibrary.h
index dc2d4e0..2b4a77f 100644
--- a/OpenAudio_ArduinoLibrary.h
+++ b/OpenAudio_ArduinoLibrary.h
@@ -1,7 +1,9 @@
 
 #include <AudioStream_F32.h>
+
+#include <AudioControlSGTL5000_Extended.h>
 #include <AudioConvert_F32.h>
 #include <AudioEffectGain_F32.h>
 #include <AudioEffectCompressor_F32.h>
-#include <AudioControlSGTL5000_Extended.h>
-
+#include <AudioMixer4_F32.h>
+#include <AudioMultiply_F32.h>
diff --git a/keywords.txt b/keywords.txt
index 283d58c..44ab5e3 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -14,6 +14,8 @@ AudioMemory_F32		KEYWORD1
 AudioMemoryUsage_F32	KEYWORD1
 AudioMemoryUsageMax_F32	KEYWORD1
 AudioMemoryUsageMaxReset_F32	KEYWORD1
+AudioMixer4_F32		KEYWORD1
+AudioMultiply_F32	KEYWORD1
 
 AudioControlSGTL5000_Extended	KEYWORD1
 micBiasEnable		KEYWORD2
\ No newline at end of file