Birdfy camera will not record with sound

Hello everyone!
I am wondering if there’s any way to get my birdfy feeder camera to record with sound. I’ve had it up for a couple of weeks now and it has captured a lot of good footage, but the frustrating part is ALL of my footage has been mute since day 1. I cannot find any settings in app about it, and looking up this problem turns up nothing useful. I know the mic works just fine because I am able to hear everything when I’m watching the live feed.
If anyone has a solution to this issue please let me know. If this is by design and there is no way around it, well… then that kinda sucks, doesn’t it?