Answers to Readers' Questions on Sound and Obstacles. Also refer to physics, reflection, absorption, transmission, material refraction, diffraction, waveform, echo, sonar, density, Doppler, Ron Kurtus, School for Champions. Copyright © Restrictions
Answers to Readers' Questions on Sound and Obstacles
The following 5 questions have been answered. They are listed according to date.
List of first 10 items
- Trying to stop noise from trucks on highway
- What type of sound wave is produced by an obstacle?
- Stopping a loud PA system
- Putting something on the wall
- Sound effects
Trying to stop noise from trucks on highway
Question
February 11, 2009
I live near a 4 lane highway and the trucks noise from jake brakes and tire noise is clearly heard in the lower part of my home. I am looking for some suggestions on installing a sound fence or panels near my home and then using shrubs to conceal the fence.
I am also wondering if I can buy a sound wave killer, one that emits a sound out from the home and breaks up the incoming sound waves/
Thank you for any suggestions.
Mike - USA
17251
Answer
Unfortunately, there is not "sound wave killer device" available that would solve your problem
Panels, fencing or a wall can help. Shrubs not only hide the fencing but add to the sound absorption.
There are some good suggestions from people in similar situations at:
http://supersoundproofing.com/forum/index.php?topic=1163.0
I hope that helps.
What type of sound wave is produced by an obstacle?
Question
July 18, 2008
When a sound wave meets an obstacle,what type of sound waves produces.
Manjunath - India
16236
Answer
The wave may be reflected, transmitted or absorbed. The type of wave is still the same.
Stopping a loud PA system
Question
April 20, 2005
if in the class room there is a PA system that is broken, in the sense that all the announcements are really really loud, how can that be fixed??? we have tried to cover that hole with a paper, but it doesnt seem to work that well. do you suggest any other cheap material that is practical to tape on a ceiling that will do the job??
shaista - Canada
6722
Answer
First of all, you should notify the school administration or building maintenance of the problem. They are the ones who should really fix the problem.
You could get some scrap acoustic tile to tape over the speaker hole. Or try several layers of corregated cardboard from a box. You could even put some rags in the hole before you tape the cardboard to muffle the sound. Of course, it may make it hard to hear.
But still, check with the school people before you do anything, to avoid problems from them.
Putting something on the wall
Question
December 30, 2004
Will A parachute hung from the ceiling and down the wall half way do anything for reflected sound in a empty club 36 X 22? Does parachute material do any thing for reflected sound? Thanks Ronald
Ronald - USA
5450
Answer
Anything cloth or soft on the walls will reduce sound reflections and echos in a room. Thin material like a parachute only muffles the sound slightly.
Sound effects
Question
September 15, 2003
Hello:
As a homework, I need to suggest a simple experiment for young children on a sound or vibration produced by: sliding, striking, plucking or blowing.
Can you please help me?
Valeria - USA
539
Answer
You can scratch your finger nails on a blackboard. (Kids like that).
Strike a bell, gong or even a glass.
Pluck a tight string or guitar string.
Blow across the top of a bottle.
Summary
Hopefully, this reader feedback has helped provide useful information to you.
Websites
Books
What do you think?
Do you have any questions, comments, or opinions on this subject? If so, send an email with your feedback. We will try to get back to you as soon as possible.
Share link
Feel free to establish a link from your website to pages in this site.
Or use our form to send this link to yourself or a friend.
Students and researchers
The Web address of this page is
www.school-for-champions.com/science/sound_obstacles_answers.CFM.
Please include it as a reference in your report, document, or thesis.
Where can you go from here?
Answers to Readers' Questions on Sound and Obstacles