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Try the annual Engineering Challenge from Science Buddies! Open to all students worldwide, a new challenge and prizes are announced every January. Explore the current challenge as well as ones from past years!
Do you love to listen to your MP3 player while you're exercising, or listen to songs on the Internet? The relatively recent development of MP3 technology has made it possible to take a stack of CD's and store them on a device no bigger than a deck of cards. How does the MP3 format squeeze all those CD's down so well, and can it go too far? Try this music science fair project to find out!
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Forum: Grades 6-8: Physical Science
How to power an mp3 using two sweet potatoes
How to power an mp3 using two sweet potatoes
I was wondering if someone can help with this project. I saw it online in a website that provided the step by step process. However, I'm almost about to turn in the project. It's not working and as I continue to research, I went into a website that had feedback that the mp3 sweet potatoe powered project does not really work. I'm almost on my deadline, and I'm worried that I wasted my time on something…
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Forum: Grades 6-8: Math and Computer Science
MP3 squeeze: How Much Compression is too much?
MP3 squeeze: How Much Compression is too much?
These questions reguard my science project.
Every student must've devoped 10 questions for an expert in my class.
Reply quickly! Thank you.
1. What are frequencies?
2. What is bit rate?
3. What is a WAV file?
4. How does the musical compression of the MP3 work?
5. Why is the MP3 useful?
6. Why was the MP3 developed?
7. Can the human ear detect the difference between a CD and MP3 version of a…
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Forum: Grades 9-12: Physical Science
Hypothesis help for "MP3 Sqeeze" project.
Hypothesis help for "MP3 Sqeeze" project.
I am having trouble coming up with a research based hypothesis for the "[u]MP3 Squeeze: How Much Compression is Too Much?[/u]" project. I am not sure how I should put it in "If...then" form. Also, I don't know exactly how to make a hypothesis for this project. I am in need of assistance. [b]My project is due on December 14, 2009[/b]. Please help me.
Re: Hypothesis help for "MP3…
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News Article
April 16, 2012
Human factors/ergonomics researchers find that MP3 players might increase driver distraction risk, depending on which devices drivers use and how long they look away from the road while searching for their favorite song.
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News Article
July 1, 2016
Listeners can tell the difference between CD-quality music and better-than-CD quality—but only if they train their ears first. Christopher Intagliata reports.
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Forum: Grades 9-12: Math and Computer Science
Ideas for Audio Compression-related Project?
Ideas for Audio Compression-related Project?
Hi, I would like to conduct a scientific investigation involving audio compression and audio file formats like mp3, wav, etc. I read over the project "MP3 Squeeze" ([url]https://www.sciencebuddies.org/science-fair-projects/project_ideas/Music_p025.shtml[/url]), but I would like to do something less subjective and more advanced--also, something that uses the Audacity audio manipulator.
Re: Ideas for…
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News Article
November 1, 2017
As scientists from ETH Zurich and the University of Zurich have now shown, songbirds are minimalists when it comes to learning a new song. The birds' learning strategy resembles the methods used by computer scientists for document comparison.
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News Article
November 27, 2014
Artists invented illusions hundreds and sometimes thousands of years ago. Today we capitalize on those lessons and apply them to new technologies and formats
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Forum: Grades 9-12: Physical Science
Sound Quality Measurement
Sound Quality Measurement
I would like to do the experiment "MP3 Squeeze: How Much Compression is Too Much?" but I need to figure out how to determine the results using quantitative means instead of my own opinion. How do you measure sound quality with numbers? I was thinking of using Audacity, but I am not sure what the units of measurement would be. Any help would be appreciated.
[Administrator note: Project link…
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