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Diffstat (limited to 'src/mame/drivers/shisen.cpp')
-rw-r--r--src/mame/drivers/shisen.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/mame/drivers/shisen.cpp b/src/mame/drivers/shisen.cpp
index 7297973182b..cc2f73e4e99 100644
--- a/src/mame/drivers/shisen.cpp
+++ b/src/mame/drivers/shisen.cpp
@@ -13,7 +13,6 @@ driver by Nicola Salmoria
#include "cpu/z80/z80.h"
#include "sound/ym2151.h"
-#include "sound/volt_reg.h"
#include "screen.h"
#include "speaker.h"
@@ -246,8 +245,7 @@ static MACHINE_CONFIG_START( shisen )
MCFG_SOUND_ROUTE(1, "rspeaker", 0.5)
MCFG_SOUND_ADD("dac", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.25) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.25) // unknown DAC
- 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