diff --git a/ld/libfiles.ntsc-beta.inc b/ld/libfiles.ntsc-beta.inc
index afa7b0a26..379b5d16e 100644
--- a/ld/libfiles.ntsc-beta.inc
+++ b/ld/libfiles.ntsc-beta.inc
@@ -80,6 +80,7 @@
 	build/ROMID/lib/naudio/n_cspgetstate.o (section); \
 	build/ROMID/lib/naudio/n_csq.o (section); \
 	build/ROMID/lib/lib_39be0.o (section); \
+	build/ROMID/lib/naudio/n_cspsetvol.o (section); \
 	build/ROMID/lib/lib_39c80.o (section); \
 	build/ROMID/lib/naudio/n_seqpstop.o (section); \
 	build/ROMID/lib/naudio/n_syndelete.o (section); \
diff --git a/ld/libfiles.ntsc-final.inc b/ld/libfiles.ntsc-final.inc
index 0362415ba..f3a3e013e 100644
--- a/ld/libfiles.ntsc-final.inc
+++ b/ld/libfiles.ntsc-final.inc
@@ -77,6 +77,7 @@
 	build/ROMID/lib/naudio/n_cspgetstate.o (section); \
 	build/ROMID/lib/naudio/n_csq.o (section); \
 	build/ROMID/lib/lib_39be0.o (section); \
+	build/ROMID/lib/naudio/n_cspsetvol.o (section); \
 	build/ROMID/lib/lib_39c80.o (section); \
 	build/ROMID/lib/naudio/n_seqpstop.o (section); \
 	build/ROMID/lib/naudio/n_syndelete.o (section); \
diff --git a/ld/libfiles.pal-final.inc b/ld/libfiles.pal-final.inc
index eafe574a2..c99f178fa 100644
--- a/ld/libfiles.pal-final.inc
+++ b/ld/libfiles.pal-final.inc
@@ -77,6 +77,7 @@
 	build/ROMID/lib/naudio/n_cspgetstate.o (section); \
 	build/ROMID/lib/naudio/n_csq.o (section); \
 	build/ROMID/lib/lib_39be0.o (section); \
+	build/ROMID/lib/naudio/n_cspsetvol.o (section); \
 	build/ROMID/lib/lib_39c80.o (section); \
 	build/ROMID/lib/naudio/n_seqpstop.o (section); \
 	build/ROMID/lib/naudio/n_syndelete.o (section); \
diff --git a/src/include/lib/lib_39c80.h b/src/include/lib/lib_39c80.h
index 2d5c23889..a509e996d 100644
--- a/src/include/lib/lib_39c80.h
+++ b/src/include/lib/lib_39c80.h
@@ -4,7 +4,6 @@
 #include "data.h"
 #include "types.h"
 
-void func00039c80(N_ALCSPlayer *seqp, s16 volume);
 void func00039cd0(ALCSPlayer *seqp);
 void func00039e5c(N_ALCSPlayer *seqp, s32 arg1, s32 arg2, u8 arg3);
 
diff --git a/src/lib/lib_39c80.c b/src/lib/lib_39c80.c
index 5646b50a6..715fa9009 100644
--- a/src/lib/lib_39c80.c
+++ b/src/lib/lib_39c80.c
@@ -5,31 +5,6 @@
 #include "data.h"
 #include "types.h"
 
-GLOBAL_ASM(
-glabel func00039c80
-/*    39c80:	27bdffd8 */ 	addiu	$sp,$sp,-40
-/*    39c84:	afbf0014 */ 	sw	$ra,0x14($sp)
-/*    39c88:	afa40028 */ 	sw	$a0,0x28($sp)
-/*    39c8c:	afa5002c */ 	sw	$a1,0x2c($sp)
-/*    39c90:	240e000a */ 	addiu	$t6,$zero,0xa
-/*    39c94:	a7ae0018 */ 	sh	$t6,0x18($sp)
-/*    39c98:	87af002e */ 	lh	$t7,0x2e($sp)
-/*    39c9c:	a7af001c */ 	sh	$t7,0x1c($sp)
-/*    39ca0:	8fa40028 */ 	lw	$a0,0x28($sp)
-/*    39ca4:	27a50018 */ 	addiu	$a1,$sp,0x18
-/*    39ca8:	00003025 */ 	or	$a2,$zero,$zero
-/*    39cac:	00003825 */ 	or	$a3,$zero,$zero
-/*    39cb0:	0c00f184 */ 	jal	n_alEvtqPostEvent
-/*    39cb4:	24840048 */ 	addiu	$a0,$a0,0x48
-/*    39cb8:	10000001 */ 	b	.L00039cc0
-/*    39cbc:	00000000 */ 	nop
-.L00039cc0:
-/*    39cc0:	8fbf0014 */ 	lw	$ra,0x14($sp)
-/*    39cc4:	27bd0028 */ 	addiu	$sp,$sp,0x28
-/*    39cc8:	03e00008 */ 	jr	$ra
-/*    39ccc:	00000000 */ 	nop
-);
-
 GLOBAL_ASM(
 glabel func00039cd0
 /*    39cd0:	27bdfff8 */ 	addiu	$sp,$sp,-8
diff --git a/src/lib/naudio/n_cspsetvol.c b/src/lib/naudio/n_cspsetvol.c
new file mode 100644
index 000000000..e0fe40bb0
--- /dev/null
+++ b/src/lib/naudio/n_cspsetvol.c
@@ -0,0 +1,12 @@
+#include <libaudio.h>
+#include "n_libaudio.h"
+
+void n_alCSPSetVol(N_ALCSPlayer *seqp, s16 vol)
+{
+	N_ALEvent evt;
+
+	evt.type = AL_SEQP_VOL_EVT;
+	evt.msg.spvol.vol = vol;
+
+	n_alEvtqPostEvent(&seqp->evtq, &evt, 0, 0);
+}
diff --git a/src/lib/snd.c b/src/lib/snd.c
index 2d72e24db..47a5664df 100644
--- a/src/lib/snd.c
+++ b/src/lib/snd.c
@@ -2695,7 +2695,7 @@ void sndSetMusicChannelVolume(struct var80094ed8 *arg0, u16 volume)
 			tmp = 0x7fff;
 		}
 
-		func00039c80(arg0->seqp, tmp);
+		n_alCSPSetVol(arg0->seqp, tmp);
 	}
 }