Acoustic panelling , This is made up of lots of small shapes which "brake up" the sound waves and reduce the level of reverb. They are made out of foam that absorbs the soundwaves to make it a rather dry room. It also stops the sound leaking out the room also sound from getting in which could potentially ruin a recording session....
So for all you guys who don't know what primary research is it's basically when you have conducted research by hand. Examples of this would be taking photos, videos or notes perhaps. Primary research plays a big part in the research as a whole it allows us to come up with original ideas and make a project really our own....
Mind maps are essential to basic research honestly I wouldn't know what to do without them! They help organize all factors of your subject letting you dig deep into what you can discuss or even contribute to your project since nothing is complete without research!