AppleScripts for using SoX to play white noise

Play White Noise.applescript

-- Choose a white noise generator and play.
--
-- Requires installation of SoX <http://sox.sourceforge.net>
-- With Homebrew: brew install sox
--
-- Starts a background process.  Kill it with command "killall play" or by running the "Stop Playing" script.

set theSynth to ¬
	choose from list {"pinknoise", "whitenoise", "brownnoise"} ¬
		with prompt ¬
		"Choose a synth" without multiple selections allowed and empty selection allowed

if not theSynth = false then
	do shell script "/usr/local/bin/play -c2 -n synth " & (first item of theSynth) & " &>/dev/null & echo $!"
end if

Stop Playing.applescript

-- Stops all /usr/local/bin/play processes

do shell script "killall play &> /dev/null &"