Posted: 2/26/2008 5:07 PM
Post subject: Sound demonstrations
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Soulrivers
Former player
Joined: 12/27/2006
Posts: 532
Location: Göteborg, Sweden
Our class recently finished an acoustics project, and we now are going to do a sound demonstration in front of the class. Basically show and tell for 5 minutes. I've been searching all over the net, but I can't find anything suitable for 8th grade (age 14-15). It can't be too easy as I want a good grade on this. Any ideas or links to sites are appreciated. :)
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Posted: 2/26/2008 5:17 PM
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Twelvepack
Joined: 5/2/2006
Posts: 1020
Location: Boulder, CO
Just show off destructive interference. Its easy to set up, and its impressive to most people. All you need is 2 tones that are only off by a little bit, f and f# tend to work well. you will hear they sound level go up and down drastically as the waves interfere with each other.
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Posted: 2/26/2008 6:06 PM
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moozooh
Senior Moderator
Joined: 8/4/2005
Posts: 5777
Location: Away
1. The difference between stereo recording and binaural recording. 2. Auditory/temporal masking and psychoacoustics. You can take lossy compression algorithms (MP3 et al.) as examples. 3. Doppler effect. 4. Shepard scale. More to come as I remember it.
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Posted: 2/26/2008 6:10 PM
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zefiris
Joined: 4/11/2006
Posts: 487
Location: North of Russia :[
voice cancellization using difference between two channels in stereo. Voice is usually monauraul while music is different for both channels ^^
Posted: 2/26/2008 7:37 PM
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Soulrivers
Former player
Joined: 12/27/2006
Posts: 532
Location: Göteborg, Sweden
Thanks guys, I appreciate it. However I was more of looking for a good way to present any subject, rather than which ones to pick from.
My published movies [03:45:05] <Naohiro19> Soulrivers: ... [03:45:19] <Soulrivers> ? [03:46:35] <Naohiro19> <Soulrivers> No! <Naohiro19> So? <Soulrivers> Yes! [03:46:48] <Naohiro19> joke
Posted: 2/27/2008 1:43 PM
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Soulrivers
Former player
Joined: 12/27/2006
Posts: 532
Location: Göteborg, Sweden
For the record, I scored highest grade on my Doppler effect demonstration, much thanks to zefiris. :) Thanks to all of you for the help.
My published movies [03:45:05] <Naohiro19> Soulrivers: ... [03:45:19] <Soulrivers> ? [03:46:35] <Naohiro19> <Soulrivers> No! <Naohiro19> So? <Soulrivers> Yes! [03:46:48] <Naohiro19> joke