NGT Audio components

[IRobot1]

I've started looking at three audio. I have the following working code that I'd like to try making declarative.

    const listener = new AudioListener();
    camera.add(listener);

    // create the PositionalAudio object (passing in the listener)
    this.spheresound = new PositionalAudio(listener);
    this.boxsound = new PositionalAudio(listener);

    // load a sound and set it as the PositionalAudio object's buffer
    const audioLoader = new AudioLoader();
    audioLoader.load('assets/sphere-pop.wav', (buffer) => {
      this.spheresound.setBuffer(buffer);
      this.spheresound.setRefDistance(1);
    });
    audioLoader.load('assets/box-pop.wav', (buffer) => {
      this.boxsound.setBuffer(buffer);
      this.boxsound.setRefDistance(1);
    });

Positional audio takes listener in the constructor, but I don't see a way to do this declaratively.

<ngt-audio-listener #listener></ngt-audio-listener>

<ngt-positional-audio #boxsound></ngt-positional-audio>
<ngt-positional-audio #spheresound></ngt-positional-audio>

Any help is appreciated. Otherwise, I'll keep trying to fit the pieces together.