diff --git a/asm/non_matchings/unknown_066460/alSynAllocFX.s b/lib/asm/non_matchings/alSynAllocFX/alSynAllocFX.s
similarity index 100%
rename from asm/non_matchings/unknown_066460/alSynAllocFX.s
rename to lib/asm/non_matchings/alSynAllocFX/alSynAllocFX.s
diff --git a/lib/src/mips1/al/alSynAllocFX.c b/lib/src/mips1/al/alSynAllocFX.c
new file mode 100644
index 00000000..ff42dc1a
--- /dev/null
+++ b/lib/src/mips1/al/alSynAllocFX.c
@@ -0,0 +1,18 @@
+/* The comment below is needed for this file to be picked up by generate_ld */
+/* RAM_POS: 0x80065860 */
+
+#include "types.h"
+#include "macros.h"
+#include "audio_internal.h"
+
+#ifdef NON_MATCHING
+// This is very close to matching.
+ALFxRef *alSynAllocFX(ALSynth *s, s16 bus, s32 *arg2) {
+    alFxNew(&s->auxBus[bus].fx[0], arg2, bus);
+    alFxParam(&s->auxBus[bus].fx[0], AL_FILTER_SET_SOURCE, &s->auxBus[bus]);
+    alMainBusParam(s->mainBus, AL_FILTER_ADD_SOURCE, &s->auxBus[bus].fx[0]);
+    return (ALFxRef)(&s->auxBus[bus].fx[0]);
+}
+#else
+GLOBAL_ASM("lib/asm/non_matchings/alSynAllocFX/alSynAllocFX.s")
+#endif
\ No newline at end of file
diff --git a/src/unknown_066460.c b/src/unknown_066460.c
deleted file mode 100644
index d072d9cf..00000000
--- a/src/unknown_066460.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/* The comment below is needed for this file to be picked up by generate_ld */
-/* RAM_POS: 0x80065860 */
-
-#include "unknown_066460.h"
-
-#include "types.h"
-#include "macros.h"
-#include "audio_internal.h"
-
-#if 1
-    GLOBAL_ASM("asm/non_matchings/unknown_066460/alSynAllocFX.s")
-#else
-ALFxRef *alSynAllocFX(ALSynth *s, s16 bus, ALSynConfig *c, ALHeap *hp)
-{
-    alFxNew(&s->auxBus[bus].fx[0], c, hp);
-    alFxParam(&s->auxBus[bus].fx[0], AL_FILTER_SET_SOURCE,
-                  &s->auxBus[bus]);
-    alMainBusParam(s->mainBus, AL_FILTER_ADD_SOURCE,&s->auxBus[bus].fx[0]);
-
-    return (ALFxRef)(&s->auxBus[bus].fx[0]);
-}
-#endif
\ No newline at end of file
diff --git a/src/unknown_066460.h b/src/unknown_066460.h
deleted file mode 100644
index 582be8b7..00000000
--- a/src/unknown_066460.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef _UNKNOWN_066460_H_
-#define _UNKNOWN_066460_H_
-
-#endif
\ No newline at end of file