diff --git a/Makefile b/Makefile
index b202b95c0..470d835d4 100644
--- a/Makefile
+++ b/Makefile
@@ -156,6 +156,8 @@ build/src/libultra/rmon/%.o: OPTFLAGS := -O2
 build/src/libultra/flash/%.o: OPTFLAGS := -g
 build/src/libultra/flash/%.o: MIPS_VERSION := -mips1
 
+build/src/code/audio/%.o: OPTFLAGS := -O2
+
 # file flags
 build/src/boot_O2_g3/fault.o: CFLAGS += -trapuv
 build/src/boot_O2_g3/fault_drawer.o: CFLAGS += -trapuv
@@ -172,6 +174,7 @@ build/src/boot_O2_g3/%.o: CC := python3 tools/asm-processor/build.py $(CC) -- $(
 build/src/libultra/%.o: CC := python3 tools/asm-processor/build.py $(CC_OLD) -- $(AS) $(ASFLAGS) --
 
 build/src/code/%.o: CC := python3 tools/asm-processor/build.py $(CC) -- $(AS) $(ASFLAGS) --
+build/src/code/audio%.o: CC := python3 tools/asm-processor/build.py $(CC) -- $(AS) $(ASFLAGS) --
 
 build/src/overlays/actors/%.o: CC := python3 tools/asm-processor/build.py $(CC) -- $(AS) $(ASFLAGS) --
 build/src/overlays/effects/%.o: CC := python3 tools/asm-processor/build.py $(CC) -- $(AS) $(ASFLAGS) --
diff --git a/spec b/spec
index c54036abb..36da46954 100644
--- a/spec
+++ b/spec
@@ -658,8 +658,8 @@ beginseg
     include "build/src/code/code_8019AF00.o"
     include "build/data/code/code_8019AF00.bss.o"
     include "build/data/code/code_801D55B0.data.o"
-    include "build/src/code/code_801A4EB0.o"
-    include "build/src/code/code_801A51F0.o"
+    include "build/src/code/audio/code_801A4EB0.o"
+    include "build/src/code/audio/code_801A51F0.o"
     include "build/data/code/code_801A51F0.data.o"
     include "build/data/code/code_801A51F0.bss.o"
     pad_text
diff --git a/src/code/code_801A4EB0.c b/src/code/audio/code_801A4EB0.c
similarity index 100%
rename from src/code/code_801A4EB0.c
rename to src/code/audio/code_801A4EB0.c
diff --git a/src/code/code_801A51F0.c b/src/code/audio/code_801A51F0.c
similarity index 100%
rename from src/code/code_801A51F0.c
rename to src/code/audio/code_801A51F0.c