Frequency Patterns when Moving Microphone from 0-90 Degrees

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asiaduuude
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in playing a range of frequencies through a speaker 100hz- 10khz what patterns would be found as a microphone is moved from 0degrees in front of the speaker to 90degree perpendicular to the speaker cone that cna be measured with an oscilloscope? i'd expect the high frequencies will become less detectable as the angle increases due to less defraction? the distance from the speaker cone remains the same.
 

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Thread moved to Homework Help forums. Welcome to the PF, asiaduuude. Can you tell us more about what you think should be expected. What would you expect the amplitude variations to be?
 
i've finished with this project now. SAT time!