How can I do spatial sounds?

[thefakeplace]

I'd like to:

• Play multiple sounds from different locations in the scene.
• Have them mix properly based on location and distance relative to the camera.

Is this possible in Excalibur today?

[eonarheim]

@thefakeplace Good question!

We don't have anything built in for spatial audio yet, but this would be a great feature!

Looks like we should be able to implement something using a panner node in the web audio api

As a workaround you may need to create new type based off ex.WebAudioInstance and change the _createNewBufferSource() to include a panner node.

  private _createNewBufferSource() {
    this._instance = this._audioContext.createBufferSource();
    this._instance.buffer = this._src;
    this._instance.loop = this.loop;
    this._instance.playbackRate.value = this._playbackRate;
    this._instance.connect(this._volumeNode);
    this._volumeNode.connect(this._audioContext.destination);
  }

I'll have some time later to play around with this, but should be possible!

[eonarheim]

I'm thinking It might be nice to add some extension points to write custom audio code in Excalibur