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Diffstat (limited to 'src/mame/audio/nichisnd.cpp')
-rw-r--r--src/mame/audio/nichisnd.cpp5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/mame/audio/nichisnd.cpp b/src/mame/audio/nichisnd.cpp
index 386a8bc8c7f..9dcae24c49e 100644
--- a/src/mame/audio/nichisnd.cpp
+++ b/src/mame/audio/nichisnd.cpp
@@ -97,10 +97,9 @@ MACHINE_CONFIG_MEMBER(nichisnd_device::device_add_mconfig)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0)
MCFG_SOUND_ADD("dac1", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.37) // unknown DAC
+ MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0) MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_NEG_INPUT, -1.0)
MCFG_SOUND_ADD("dac2", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.37) // unknown DAC
- MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
- MCFG_SOUND_ROUTE_EX(0, "dac1", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac1", -1.0, DAC_VREF_NEG_INPUT)
- MCFG_SOUND_ROUTE_EX(0, "dac2", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac2", -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