diff --git a/include/snd_render.h b/include/snd_render.h
index adcb496de..75300e9c8 100644
--- a/include/snd_render.h
+++ b/include/snd_render.h
@@ -33,15 +33,13 @@
 #define __snd_render_h
 
 // !!! if this is changed, it must be changed in asm_i386.h too !!!
-typedef struct
-{
+typedef struct portable_samplepair_s {
 	int left;
 	int right;
 } portable_samplepair_t;
 
 // !!! if this is changed, it much be changed in asm_i386.h too !!!
-typedef struct
-{
+typedef struct sfxcache_s {
 	int 	length;
 	int 	loopstart;
 	int 	speed;
@@ -52,8 +50,7 @@ typedef struct
 } sfxcache_t;
 
 // !!! if this is changed, it much be changed in asm_i386.h too !!!
-typedef struct
-{
+typedef struct channel_s {
 	sfx_t	*sfx;			// sfx number
 	int		leftvol;		// 0-255 volume
 	int		rightvol;		// 0-255 volume
@@ -69,8 +66,7 @@ typedef struct
 	int	oldphase;	// phase shift between l-r in samples
 } channel_t;
 
-typedef struct
-{
+typedef struct wavinfo_s {
 	int		rate;
 	int		width;
 	int		channels;
@@ -120,6 +116,8 @@ wavinfo_t SND_GetWavinfo (const char *name, byte * wav, int wavlength);
 void SND_WriteLinearBlastStereo16 (void);
 void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int count);
 void SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, int count);
+void SND_PaintChannelStereo8 (channel_t *ch, sfxcache_t *sc, int count);
+void SND_PaintChannelStereo16 (channel_t *ch, sfxcache_t *sc, int count);
 
 wavinfo_t GetWavinfo (const char *name, byte *wav, int wavlength);
 
diff --git a/libs/audio/renderer/snd_mix.c b/libs/audio/renderer/snd_mix.c
index 3cdd01351..2f77c71ac 100644
--- a/libs/audio/renderer/snd_mix.c
+++ b/libs/audio/renderer/snd_mix.c
@@ -372,3 +372,44 @@ SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, int count)
 		paintbuffer[i + right_phase].right += (sfx[i] * rightvol) >> 8;
 	}
 }
+
+void
+SND_PaintChannelStereo8 (channel_t *ch, sfxcache_t *sc, int count)
+{
+	byte       *samp;
+	portable_samplepair_t *pair;
+	int		   *lscale, *rscale;
+
+	if (ch->leftvol > 255)
+		ch->leftvol = 255;
+	if (ch->rightvol > 255)
+		ch->rightvol = 255;
+
+	lscale = snd_scaletable[ch->leftvol >> 3];
+	rscale = snd_scaletable[ch->rightvol >> 3];
+
+	samp = sc->data + ch->pos;
+	pair = paintbuffer;
+	while (count-- > 0) {
+		pair->left += lscale[*samp++];
+		pair->right += rscale[*samp++];
+		pair++;
+	}
+}
+
+void
+SND_PaintChannelStereo16 (channel_t *ch, sfxcache_t *sc, int count)
+{
+	short      *samp;
+	portable_samplepair_t *pair;
+	int         leftvol = ch->leftvol;
+	int         rightvol = ch->rightvol;
+
+	samp = (short *) sc->data + ch->pos * 2;
+	pair = paintbuffer;
+	while (count-- > 0) {
+		pair->left += *samp++ * leftvol;
+		pair->right += *samp++ * rightvol;
+		pair++;
+	}
+}