Added close-calculator.ps1

Scripts/close-calculator.ps1

@@ -0,0 +1,9 @@
+#!/snap/bin/powershell
+<#
+.SYNTAX         ./close-calculator.ps1 
+.DESCRIPTION	closes the calculator program gracefully
+.LINK		https://github.com/fleschutz/PowerShell
+.NOTES		Author:	Markus Fleschutz / License: CC0
+#>
+
+./close-program "calc" "Calculator"

Scripts/voice-control.ps1

@@ -11,7 +11,7 @@ $PathToRepo = "$PSScriptRoot/.."
 
 try {
 	write-output "Init speech recognition engine..."
-	$null = [Reflection.Assembly]::LoadWithPartialName("System.Speech") 
+	[void][System.Reflection.Assembly]::LoadWithPartialName("System.Speech") 
 	$speechRecogEng = [System.Speech.Recognition.SpeechRecognitionEngine]::new()
 	#$speechRecogEng.InitialSilenceTimeout = 15
 	$speechRecogEng.SetInputToDefaultAudioDevice()
@@ -33,6 +33,8 @@ try {
 	$grammar2.Append("exit")
 	$speechRecogEng.LoadGrammar($grammar2)
 
+	write-output "NOTE: make sure the microphone volume is not too silent or too loud!"
+
 	write-output "Listening now ($Count voice commands)..."
 	while ($true) {
 		$recognized = $speechRecogEng.Recognize()