glaurent

import Foundation
import CoreAudio

var propertyAddress = AudioObjectPropertyAddress(mSelector: kAudioHardwarePropertyDevices, mScope: kAudioObjectPropertyScopeGlobal, mElement: kAudioObjectPropertyElementMaster)
var propertySize:UInt32 = 0


if AudioObjectGetPropertyDataSize(AudioObjectID(kAudioObjectSystemObject), &propertyAddress, 0, nil, &propertySize) == noErr {

    let numDevices = Int(propertySize) / MemoryLayout<AudioDeviceID>.size