diff --git a/home.html b/home.html
index 12e10c0..592410f 100644
--- a/home.html
+++ b/home.html
@@ -1415,7 +1415,9 @@
 
 
         function LineInputSlider(number) {
-
+            if (number == '') {
+                number = 0
+            }
             let element = $('#lineinput')
             let input = $("#lineinput .volume-slider input")
             let value = (parseFloat(number) + 72) / (84 / 100)
@@ -1469,7 +1471,9 @@
         }
 
         function Microphone1Slider(number) {
-
+            if (number == '') {
+                number = 0
+            }
             let element = $("#microphone1")
             let input = $("#microphone1 .volume-slider input")
             let value = (parseFloat(number) + 72) / (84 / 100)
@@ -1522,7 +1526,9 @@
         }
 
         function Microphone2Slider(number) {
-
+            if (number == '') {
+                number = 0
+            }
             let element = $('#microphone2')
             let input = $("#microphone2 .volume-slider input")
 
@@ -1576,7 +1582,9 @@
         }
 
         function OutputVolumeSlider(number) {
-
+            if (number == '') {
+                number = 0
+            }
             let element = $('#outputvolume')
             let input = $("#outputvolume .volume-slider input")