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Diffstat (limited to 'src/devices/bus/pet/cb2snd.cpp')
-rw-r--r--src/devices/bus/pet/cb2snd.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/devices/bus/pet/cb2snd.cpp b/src/devices/bus/pet/cb2snd.cpp
index 8a4fbe3ef76..77ad497a700 100644
--- a/src/devices/bus/pet/cb2snd.cpp
+++ b/src/devices/bus/pet/cb2snd.cpp
@@ -11,7 +11,6 @@
#include "emu.h"
#include "cb2snd.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
@@ -29,8 +28,7 @@ DEFINE_DEVICE_TYPE(PET_USERPORT_CB2_SOUND_DEVICE, pet_userport_cb2_sound_device,
MACHINE_CONFIG_MEMBER( pet_userport_cb2_sound_device::device_add_mconfig )
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD("dac", DAC_1BIT, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.99)
- 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_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0)
MACHINE_CONFIG_END
//**************************************************************************