'Some furnishings are still in development, so you may see some unusual behavior with lights, animations, audio, and visual effects on certain furnishings.'
They put a disclaimer in the PTS Patch Notes so I'm pretty sure this is just a placeholder audio.
Other furnishings also have missing/placeholder textures and effects for the time being, so I think we'll have to wait until a later PTS patch to truly review and give feedback for them.