i3blocks more minimal; audio handler

.i3blocks.conf

@@ -5,8 +5,9 @@ markup=none
 [mpd]
 label=🎼
 command=i3mpd
-interval=1
+interval=once
 align=left
+signal=11
 
 [weather]
 command=i3weather
@@ -15,13 +16,15 @@ interval=1800
 [mail]
 label=📧
 command=i3mail
-interval=60
+interval=300
 align=left
+signal=12
 
 [volume]
-interval=1
+interval=once
 command=i3volume
 markup=pango
+signal=10
 
 [iface]
 #instance=wlan0
@@ -33,7 +36,7 @@ interval=10
 interval=10
 
 [battery]
-command=acpi | cut -d " " -f3-5 |  sed -e "s/,//g;s/Discharging/🔋/;s/Charging/🔌/;s/Full/⚡/;s/ 0*/ /g;s/ :/ /g"
+command=acpi | cut -d " " -f3-5 |  sed -e "s/,//g;s/Discharging/🔋/;s/Charging/🔌/;s/Unknown/❓/;s/Full/⚡/;s/ 0*/ /g;s/ :/ /g"
 interval=5
 
 [time]