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Want to measure frequency response of speaker

manojroy123

I was looking online to measure frequency response of a speaker. Most of the technique they provide is to place a microphone in front of the speaker to measure frequency response of the speaker. I find it to be inaccurate with large amount of unidentified error. I came up with the idea and have shown it in image bellow. I would like to know is my concept good enough to give me accurate frequency response of speaker than traditional technique.

image

If there is problem in the concept please let me know how to solve it.

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    The main concern I have is that your speaker is producing Audio waves, while your inductor would be picking up changes in magnetic field going through it. So I don't think it's the best setup for measuring the speaker (audio) response. On the other hand, a microphone picks up sound so is better suited for this task. Yes, the microphone will add it's own response to the output you get, but that's going to be an issue with any transducer that is not characterized and calibrated over the frequency range you're expecting.

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    The main concern I have is that your speaker is producing Audio waves, while your inductor would be picking up changes in magnetic field going through it. So I don't think it's the best setup for measuring the speaker (audio) response. On the other hand, a microphone picks up sound so is better suited for this task. Yes, the microphone will add it's own response to the output you get, but that's going to be an issue with any transducer that is not characterized and calibrated over the frequency range you're expecting.

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