diff --git a/sound/machines/BoltsDown.ogg b/sound/machines/BoltsDown.ogg
index 8c168f0a..2e689510 100644
Binary files a/sound/machines/BoltsDown.ogg and b/sound/machines/BoltsDown.ogg differ
diff --git a/sound/machines/BoltsUp.ogg b/sound/machines/BoltsUp.ogg
index 86b90bb3..8d39b7ae 100644
Binary files a/sound/machines/BoltsUp.ogg and b/sound/machines/BoltsUp.ogg differ