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-rw-r--r--src/mame/audio/nl_barrier.cpp2
-rw-r--r--src/mame/audio/nl_spacewar.cpp2
2 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/audio/nl_barrier.cpp b/src/mame/audio/nl_barrier.cpp
index 6fba85cb579..a1bae48963d 100644
--- a/src/mame/audio/nl_barrier.cpp
+++ b/src/mame/audio/nl_barrier.cpp
@@ -182,7 +182,7 @@ NETLIST_START(barrier)
NET_C(NOISE_CLOCK.GND, GND)
NET_C(NOISE_CLOCK.VCC, I_V5)
- SYS_NOISE_MT_U(NOISE, 3)
+ SYS_NOISE_MT_U(NOISE, 0.0001)
NET_C(NOISE.I, NOISE_CLOCK.Q)
NET_C(NOISE.1, GND)
NET_C(NOISE.2, C1.1)
diff --git a/src/mame/audio/nl_spacewar.cpp b/src/mame/audio/nl_spacewar.cpp
index 53bae689243..b733a1b0846 100644
--- a/src/mame/audio/nl_spacewar.cpp
+++ b/src/mame/audio/nl_spacewar.cpp
@@ -193,7 +193,7 @@ NETLIST_START(spacewar)
NET_C(NOISE_CLOCK.GND, GND)
NET_C(NOISE_CLOCK.VCC, I_V5)
- SYS_NOISE_MT_U(NOISE, 3)
+ SYS_NOISE_MT_N(NOISE, 0.0001)
NET_C(NOISE.I, NOISE_CLOCK.Q)
NET_C(NOISE.1, GND)
NET_C(NOISE.2, C1.1)