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-rw-r--r--src/mame/drivers/cbuster.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mame/drivers/cbuster.cpp b/src/mame/drivers/cbuster.cpp
index 9fbe272553a..67c8d2efc10 100644
--- a/src/mame/drivers/cbuster.cpp
+++ b/src/mame/drivers/cbuster.cpp
@@ -269,6 +269,7 @@ void cbuster_state::twocrude(machine_config &config)
H6280(config, m_audiocpu, XTAL(24'000'000)/4); /* Custom chip 45, 6MHz Verified */
m_audiocpu->set_addrmap(AS_PROGRAM, &cbuster_state::sound_map);
m_audiocpu->add_route(ALL_OUTPUTS, "mono", 0); // internal sound unused
+ m_audiocpu->set_timer_scale(2);
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(58);