promisfy this?

PlaySounds.js

var lame = require( "lame" )
  , Speaker = require('speaker')

var sack = require( "../node_modules/sack-gui" )
var disk = sack.Volume();


["Click-SoundBible.com-1387633738.mp3"
,"Cracking Chest Open-SoundBible.com-2009973824.mp3"
,"dclick.mp3"
,"handcuffs-daniel_simon.mp3"
,"Pop Clip In-SoundBible.com-5837465732.mp3"
,"Stapler-SoundBible.com-374581609.mp3"].forEach( file=>{
	var ld = new lame.Decoder();
	ld.on('format', function (format) { ld.pipe( new Speaker(format) ) } );
	ld.write( new Uint8Array(disk.read( "../sounds/" + file ) ) );

} );