Saturday, April 11, 2009

RESEARCH DEVELOPMENTS~

For the past few days, we have been doing some research on the positioning of the stereo system and how well it affects the audibility range and sharpness of the sound in all.

First up, we went to Jurong Point shopping mall and walked through the different music and cd stores, with the exception being Courts, to ask them and see how they position their stereo systems. We found out that in most cd stores, such as Gramophone, place their stereo systems at one corner of the room, at the innermost position, and this method of positioning the systems provided clear and loud soundwaves for any kind of music played. On the other hand, the salesman at Courts told me that the positioning of the stereo systems are usually up to the owners, but they recommend thatthe systems are to be placed at the spot where it is further away from the target point, as the stereo speakers can generally generate a large amount of soundwaves which will deflect off the surfaces of the room, without too much compromise on the sound quality. However, I was unable to get an answer when I questioned him on whether the circumstances are different for rooms in other shapes. Lol so much for professionalism...

Anyway, from this short research conducted at Jurong Point, I feel that there can be many various alternatives and methods to placing the stereo systems, but the shape and the placing r of furniture in the room is also equally important, if not more, as they will determine how the sound waves will get deflected and thus produce the maximum range of audibility, which helps us to hear the music from a further distance. We will be doing further research adn we hope to be able to go to busier shopping districts such as Suntec, Orchard etc to look for more of these kind of stores for a wider range of interviews and comments. JIAYOU XD

1 comment:

  1. Good to see that the group actually went to do some fieldwork! Well, do note that the person you approach may be a salesman who is not well trained in Physics. Yes, the speakers should not be placed too close to the person in case the sound is blasted too loud. However, the various distances and factors mentioned in my comments in your previous entry should also be explored. Note that even when you are in a large room far away from the speakers, the sound you hear may be slightly different as you walk from the left to the right corner of the room. This is due to constructive and destructive interference of waves, which is affected by several factors.

    This website is very useful especially the subtopics on "Diffraction" and "Superposition".
    http://www.acoustics.salford.ac.uk/feschools/index.htm

    This one's good too.
    http://www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/waves/u10l3c.html

    Regards,
    Ms Chua

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