3 replies to this topic

[drosales]

Ok, so I'm a mechanical engineering major and we were given a project where we are able to choose a musical instrument and analyze its dynamic response. I decided to choose the harmonica as i thought it would be more challenging than most other instruments and since i knew nothing about it. And knowing nothing about it, i decided to get some help from the people that know the most about it.

One part of the project is to graph the sound wave of a c note. I'll also have to represent this wave as a sine function. This is the biggest part of the project and this is the part that i'm having the most trouble completing. If anyone could help me out here i'd greatly appreciate it. Thanks!

[elizabeth]

Welcome to the forum!

Well, sine would be the number of degrees of the wave, so if you have a Texas Instruments calculator, hit the "sin" button and input the number of degrees divided by 100 (I think), and then hit "=". There's your answer!

P.S. Don't forget to show your work!

I'm not sure if this is entirely correct. I haven't done sines since last year in Algebra 1-2, but I think it's close, because I'm good at math and I'd remember these things. I have an A (93%) in Algebra 3-4 this year!

[strokin46]

whenever I have a need for info on harmonicas I jusst go to "patmissen" just google it to get his site. You can even ask him a question there. Most everything you ever want to know, he covers or can answer. good luck.

[harmonicatunes]

Record a C note, then run it through a spectrum analyser (being an engineering major you should be able to find some open source software that will do this)

Look for the fundamental and the harmonics.

Once your project is done, then start playing. Your life might change in agreeable ways...