title: AudioKit on macOS: get/set system device volume
body: <p>I've used <a href="https://audiokit.io/docs/Classes/AudioKit.html#/c:@M@AudioKit@objc(cs)AudioKit(cpy)inputDevice" rel="nofollow noreferrer"><code>AudioKit.inputDevice</code></a>, <a href="https://audiokit.io/docs/Classes/AudioKit.html#/c:@M@AudioKit@objc(cs)AudioKit(cpy)outputDevice" rel="nofollow noreferrer"><code>Audiotkit.outputDevice</code></a>, and friends to get get all input and output devices on my Mac, and to get/set default input and output device.</p>
  
  <p>I wish to read the current volume of these devices, and to be able to set it myself, but I can't find the correct AudioKit API for doing so.</p>
  
  <p>Does anyone know how to do this?</p>