Since we were talking about speakers and headphones in class, here is a tip to getting the best ones out there. One thing to consider is how accurately the speakers recreate the sound as it was recorded. The most common way to analyse that is by looking at the frequency response spectrum. The flatter the curve, the more accurately it will recreate the sound. Here is the frequency response spectrum of some popular over/on the ear headphones. I’ll leave you with a question… Are Beats by Dre headphones all they are really cracked up to be?
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Joseph Edward Hutchinson
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Ricky Wallace
I enjoyed constructing my instrument and demonstrating it today. Hopefully I got an A.
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Kristin Rose Collins
The room acoustics of this room causes a greater amount of absorption than we are used to. It’s interesting how our psychological responses cause many different types of responses to being in silence. This person is able to make it an hour, while most cannot stand it past thirty minutes. The heightened senses cause different reactions that are very interesting to observe.
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Kyle Joseph Halmi
Since the instrument I made for our musical instrument project used water to adjust air volume in a closed-end pipe, I was curious to see if there were any other instruments that somehow incorporated water. What I found was interesting. The instrument shown in the video below does not use water as a pitch adjuster, but rather uses it to forces water into the instrument to produce sound. There are holes from which flows water at a very low pressure, but as you block those holes in various ways, it causes the pressure to increase at different levels producing notes. Its called a Hydraulophone.
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Kara L Stegmann
I found it very interesting that the instrument uses the water pressure to change the sound. My only question for this instrument is where is the sound projected. It is clearly not right where the man is plugging the holes. Also, if the water is flowing at such a low pressure, how and why does it make just a loud sound. Usually the higher the pressure, the louder the sound, or thats how it usually is in several different traditional instrument.
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Aynalem Xena Pantoja
I found this really interesting article about why speakers blow out. On Tuesday, we learned some information about microphones and speakers so I thought this could relate. There are actually two main reasons why speakers can fail which are mechanical failure and thermal failure. Mechanical failure is from too much cone excursion and that’s because it’s past the distance it was safely meant to move to. Sometimes the cone or other parts of the voice coil structure can slam into the frame of the speaker. If the volume isn’t decreased then at some point something will rip or come apart. On the other hand, thermal failure happens when the speaker is provided with more power than it is meant to safely handle. The voice coil gets so hot that the adhesives used to keep the voice coil together can soften and cause the coil to come apart. The coil will melt or burn the wires inside if it’s too hot and will most likely lead to an open circuit which results in no sound at all. I thought this was pretty neat since one of my speakers blew out last summer and now I understand what happened.
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James Douglas Kuehl
Hannah Rae Corbin is discussing. 
Kara L Stegmann is discussing. 
Hannah Rae Corbin 2:21 pm on December 11, 2014 Permalink
This is so interesting! I feel like I would get totally creeped out from hearing all my bodily functions. It was crazy how you could literally hear his heartbeat in the microphone too, and how when there were no louder noises the microphone picked up sounds with such low amplitude. Thank you for sharing!