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-rw-r--r--src/mame/audio/csd.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/mame/audio/csd.cpp b/src/mame/audio/csd.cpp
index 3158de444db..53a3a9d6e75 100644
--- a/src/mame/audio/csd.cpp
+++ b/src/mame/audio/csd.cpp
@@ -8,7 +8,6 @@
#include "emu.h"
#include "csd.h"
-#include "sound/volt_reg.h"
//**************************************************************************
@@ -46,8 +45,7 @@ MACHINE_CONFIG_MEMBER(midway_cheap_squeak_deluxe_device::device_add_mconfig)
MCFG_PIA_IRQB_HANDLER(WRITELINE(midway_cheap_squeak_deluxe_device, irq_w))
MCFG_SOUND_ADD("dac", AD7533, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, DEVICE_SELF_OWNER, 1.0)
- MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
- MCFG_SOUND_ROUTE_EX(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
+ MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0) MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_NEG_INPUT, -1.0)
MACHINE_CONFIG_END
//-------------------------------------------------