diff --git a/src/emu/sound/cdda.c b/src/emu/sound/cdda.c
index bf6ab47f6ed..1c25d7d17ab 100644
--- a/src/emu/sound/cdda.c
+++ b/src/emu/sound/cdda.c
@@ -303,6 +303,21 @@ void cdda_set_volume(running_device *device,int volume)
 	stream_set_output_gain(cdda->stream,1,volume / 100.0);
 }
 
+/*-------------------------------------------------
+    cdda_set_channel_volume - sets CD-DA volume level
+    for either speaker, used for fade in/out effects
+-------------------------------------------------*/
+
+void cdda_set_channel_volume(running_device *device, int channel, int volume)
+{
+	cdda_info *cdda = get_safe_token(device);
+
+	if(channel == 0)
+		stream_set_output_gain(cdda->stream,0,volume / 100.0);
+	if(channel == 1)
+		stream_set_output_gain(cdda->stream,1,volume / 100.0);
+}
+
 /**************************************************************************
  * Generic get_info
  **************************************************************************/
diff --git a/src/emu/sound/cdda.h b/src/emu/sound/cdda.h
index 0131a47ad9f..116555596ad 100644
--- a/src/emu/sound/cdda.h
+++ b/src/emu/sound/cdda.h
@@ -11,7 +11,8 @@ running_device *cdda_from_cdrom(running_machine *machine, void *file);
 void cdda_start_audio(running_device *device, UINT32 startlba, UINT32 numblocks);
 void cdda_stop_audio(running_device *device);
 void cdda_pause_audio(running_device *device, int pause);
-void cdda_set_volume(running_device *device,int volume);
+void cdda_set_volume(running_device *device, int volume);
+void cdda_set_channel_volume(running_device *device, int channel, int volume);
 
 UINT32 cdda_get_audio_lba(running_device *device);
 int cdda_audio_active(running_device *device);