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-rw-r--r--src/emu/speaker.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/emu/speaker.h b/src/emu/speaker.h
index 286e837ce79..64c6767cc40 100644
--- a/src/emu/speaker.h
+++ b/src/emu/speaker.h
@@ -45,6 +45,9 @@ public:
speaker_device &front_center() { set_position(0.0, 0.0, 1.0); return *this; }
speaker_device &front_left() { set_position(-0.2, 0.0, 1.0); return *this; }
speaker_device &front_right() { set_position(0.2, 0.0, 1.0); return *this; }
+ speaker_device &rear_left() { set_position(-0.2, 0.0, -0.5); return *this; }
+ speaker_device &rear_right() { set_position(0.2, 0.0, -0.5); return *this; }
+ speaker_device &subwoofer() { set_position(0.0, 0.0, 0.0); return *this; }
// internally for use by the sound system
void mix(s32 *leftmix, s32 *rightmix, int &samples_this_update, bool suppress);