Why does it happen?
Like light, sound is a wave that travels from the place where it’s produced to the place where it’s received, which usually is your ears. When sound is traveling through an (almost) empty room, it can bounce off the walls and create the reverb that gets you headaches.
Wooden panels
If you want to prevent sound from bouncing off the walls, you can install wooden panels, for example from Acupanel. When the soundwave touches these panels, it doesn’t bounce off the walls, instead: the sound ends there and no reverb is created. A very easy way to put an end to the reverb and most of the panels look pretty stylish as well.
More stuff
The more empty space the sound can travel through, the more annoying the reverb is that’s created after. One of the reasons that reverb is often a problem in a new house is that it’s not filled with stuff yet, so sound can reach the walls pretty easily. The easy solution can be: just buy more stuff.
Reorganize
Buying new stuff is not always a good idea. It’s not a good idea money-wise, but also not very environmentally conscious. By spreading your stuff through the area instead of just putting it in clusters together, you can get the impression of more stuff. You can also divide your space by a room divider or a cupboard. The smaller the space is, the lesser the chance you get reverb. You don’t need new stuff to get rid of the reverb. In most cases, reorganizing will do.
Fluffy things
If you are into fluffy things, like fluffy blankets, pillows or even toys, this is your moment! The fluffier the surface, the bigger the chance that particular surface will put an end to the sound wave. Fill your room up with blankets, carpets and little pillows to make sure reverb doesn’t get a chance in your living room or bedroom. In short: reverb is annoying, but with enough knowledge of how to deal with it, you can get rid of it pretty easily. Reorganize your house and fill it up with fluffy things or acoustic panels on the wall and reverb will get no chance at all in your house.