Mac OSXでオーディオ出力を切り替えるApplescript

#Mac OSXでオーディオ出力を切り替えるApplescript

tell application "System Preferences"
	reveal anchor "output" of pane id "com.apple.preference.sound"
	activate	
	tell application "System Events"
		tell process "System Preferences"
			select (row 1 of table 1 of scroll area 1 of tab group 1 of window "サウンド" whose value of text field 1 is "内蔵スピーカー")
		end tell
	end tell
	quit
end tell