Today we went to a national centre for acoustical services with ISO accreditation in Auckland University. This is the first time I have been able to get so close to those professional equipments. There are two big rooms in the building. One room is very good for sound reflex, and it can create great echolike effect. The other room has a lot of sponge laid inside. That means when people stand inside the room and talk, they will feel so uncomfortable and find it hard to hear their own sounds because this room has very strong sound absorption ability.
Before we went to visit these two rooms, an old doctor has already described how the sounds are produced and how people use their ear to hear sound. He has also talked about the level of the sounds and what the hearing danger is. From that I decide to get rid of some bad habit in the future, for example, hear music through MP3 which sound level will cause hearing damage. I think what I have seen today is more useful than yesterday, and I can't help looking forward to the main part of the new project.
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