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In this MST Project, the following focus question will be addressed. How is sound quality affected by the properties of the physical space in which it is generated?
The two standards related to the focus question are Math Standard 3.5 Measurement and Technology Standard 5.1 Engineering Design. The Measurement Standard states: "This standard is met when ever students use direct measurement to make a comparison between two objects. For example building a scale model, would require the use of measurement and unit conversions." The data that I would need to measure would be the quality, tone, and fullness of the sound produced by a steady source (e.g. synthesizer and/or tuning fork). The Engineering Design Standard mentioned above states: "Any project that involves the design process would fit this standard if it involves a student's design. Then the project must include multiple revisions of the design. If the project is about someone else's invention then it must include information about the changes and revisions to the original design." This would be implemented in looking at the designs of rooms and buildings to fit its acoustic needs.
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Sound-wave interference must be taken into account when constructing concert halls, so that destructive interference does not result in areas in the hall where the sounds produced on stage cannot be heard. To read how acoustics can be designed for concert halls, you can read an article called "Reliability of Scale-Model Researches: a Concert Hall Case" 483 KB (Adobe Acrobat Reader 5.0 Required). Most of our music making is carried out indoors. In such a situation, the listener's experience is formed almost as much by the room itself as by the instruments. For a successful performance (or recording), the concert space (or studio, or living room with recorded sounds) must fulfill the following:
These goals are more or less in order of importance. The last requirement will not affect the concert itself, but may affect the possibility of holding future concerts. Another important aspect of room acoustics is insulation from unwanted sound. This is obtained by carefully sealing even the smallest openings that can leak sound, by using massive walls, and by building several unconnected walls separated by dead spaces. With these criteria in mind, we will examine the important structural factors of the room which control them.
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