Audio gets quiet after another clip is played

Hello, I’m working on the Space Shooter project that Unity provides for learning purposes. I’m at the point where I’m supposed to add sound effects to different things like explosions and weapon fire etc. When one sound is played repeatedly ie. firing multiple shots in a row, the audio is fine. However, if an asteroid is shot, all sounds get very quite, and then slowly fade back in, until an asteroid is hit again. I don’t know if this situation is specific to asteroids being shot; it just happens to be the only situation where I’ve seen it happen. Any help would be appreciated. Thanks.

this is still and issue many years later and I still cannot find a solution to this