Can't get an AudioSource to play on awake

I have a scene that just has a camera and an audio source (pictured below). I have a sound attached to the audio source that should play on awake (and loop), but when I run the scene, no sound plays.

I’ve tried putting the audio source as both a sibling and child of the camera in the hierarchy, and I’ve made sure that the audio source is at the same position as the camera.

The sound clip works if I open it from the inspector.

I’ve seen other questions like this, but they all had a more complicated setup (and most didn’t get resolved). This one is as simple as I could manage. I’m not sure what I’m missing.

Looks like I had all audio turned off in Edit → Project Settings → Audio

I had the same problem (I know this is old but it is the top google result), turns out I had audio muted in the editor.