mpSoundEngineでA＝440Hzのモノラルの音を出す

外部フレームワーク（mpSoundEngine）を利用して、440Hzの音を鳴らすAppleScriptです。

AppleScript名：mpSoundEngineでA＝440Hzのモノラルの音を出す

— Created 2017-12-14 by Takaaki Naganoya
— 2017 Piyomaru Software
use AppleScript version "2.4"
use scripting additions
use framework "Foundation"
use framework "mpSoundKit" –https://github.com/matthiasplappert/MPSoundEngine
–http://piyocast.com/as/archives/5030

set engine to current application’s MPMonoSoundEngine’s alloc()’s init()
engine’s channel()’s setFrequency:440.0
engine’s start()
delay 3
engine’s |stop|()