Thursday, January 12, 2006

Microphone evaluation

We attached the piezo buzzer, the Shadow guitar pickup and the piezoelectric film on a window and recorded their response to evaluate their quality.
After the recordings we performed a Fourier spectrum analysis of the sound-data.

Piezo-film analysis:


Piezo-buzzer analysis:


The comparisson shows a better response of the piezo-film, especially in the mid-range frequencies. Second came the guitar with the buzzer last, as expected.

Another factor that we evaluated was the unwanted noise levels picked up by the mics. Again, the piezo-film showed the lowest noise levels compared to the other two.

3 Comments:

At 2:21 pm, Blogger Fon said...

Nice blog. I will keep reading. Please take the time to visit my blog about Guitar Lesson

 
At 4:58 am, Blogger Hola Blog said...

Hello,
I consider this is an excellent project and I would like to know if you have some plans to produce it, because... i want one. Is an awesome gadget for experience something we may┬┤ve never imagine.

 
At 7:55 am, Blogger tom said...

i'm the same would love one of these??????

 

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