Turn-VolumeDown

Turns the volume down

Script

param([int]$percent = 10)

try {
	$obj = New-Object -com wscript.shell
	for ([int]$i = 0; $i -lt $percent; $i += 2) {
		$obj.SendKeys([char]174) # each tick is -2%
	}
	exit 0 # success
} catch {
	"?? ERROR: $($Error[0]) (script line $($_.InvocationInfo.ScriptLineNumber))"
	exit 1
}

Customize

percent int

Specifies the percent number