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khughes5
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Last seen: 2 years 4 months ago
Joined: Jun 21 2012 - 10:36am
frequency response analysis with pulsed signal

Hi all,

So I am a university student and my research is on the fabrication of a novel micro-speaker. I am a mechanical engineer, so my focus is mainly on the basic design and fabrication. Once I am able to make a working device, I need to do some analysis. Unfortuately, I have no technical background in audio engineering or acoustics or the like, but being at a university, I have access to good equipment; http://www.etymotic.com/pro/er7c.aspx is the microphone I currently have access to.

I am reading up on how to do some of this, but the major problem I have is that I cannot drive my speaker with a sinusoidal signal, and instead must drive it with a pulsed signal. I was wondering if anyone had any tips or good references on how I can perform a basic, but thorough, frequency analysis? As it stands, I am planning on just taking SPL measurements at small frequency intervals driven by a function generator, but I thought I would see if anyone had thoughts on this.

thanks

JoeE SP9
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Last seen: 2 weeks 3 days ago
Joined: Oct 31 2005 - 6:02pm
speaker

What's the point of having a speaker you can't drive with a sinosoidal signal? What could it possibly be good for?

khughes5
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Last seen: 2 years 4 months ago
Joined: Jun 21 2012 - 10:36am
Its a proof-of-concept device

Its a proof-of-concept device. Pulse signals can be used for buzzer-type applications, like a pc speaker.

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