tell application "System Preferences"
	activate
	set current pane to pane id "com.apple.preference.sound"
end tell
tell application "System Events"
	tell process "System Preferences"
		set frontmost to true
		--get properties of UI element of tab group of window "Sound"
		click radio button "input" of tab group of window "Sound"
		tell row 2 of table 1 of scroll area 1 of tab group 1 of window "Sound" to set selected to true
		get volume settings
	end tell
end tell