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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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       You are on the right track, but with the wrong tools. Back in the day, I worked for a little company called Hughes Aircraft, I used to deal with test equipment that they used to test communications satellites. The nice thing is they had an unused Anaholic Chamber or a chamber without echoes. I had a few speakers to test which sounded better in an enclosure. that I had picked up. First, your inductor measures magnetism, not sound pressure as in sound. Second I used a "calibrated" microphone.  This is now found on some high-end stereo gear involved in balancing your Dolby system with "Pink Noise". My Yamaha DSR-100 Pro is old school It me a week-end to decide to buy it.  For the folks to have to know it was Sound Trek in Metairie, LA. 

    So you have your microphone and your speaker. (the book with the microphone tells you how far to place it.) The microphone was connected to an HP 141 Spectrum Analyzer 20hz -300kHz, and a distortion analyzer as well. The best microphone would be the Directional Condenser Microphone. Anyway good luck, this is best I got ~~ Cris H. 

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       You are on the right track, but with the wrong tools. Back in the day, I worked for a little company called Hughes Aircraft, I used to deal with test equipment that they used to test communications satellites. The nice thing is they had an unused Anaholic Chamber or a chamber without echoes. I had a few speakers to test which sounded better in an enclosure. that I had picked up. First, your inductor measures magnetism, not sound pressure as in sound. Second I used a "calibrated" microphone.  This is now found on some high-end stereo gear involved in balancing your Dolby system with "Pink Noise". My Yamaha DSR-100 Pro is old school It me a week-end to decide to buy it.  For the folks to have to know it was Sound Trek in Metairie, LA. 

    So you have your microphone and your speaker. (the book with the microphone tells you how far to place it.) The microphone was connected to an HP 141 Spectrum Analyzer 20hz -300kHz, and a distortion analyzer as well. The best microphone would be the Directional Condenser Microphone. Anyway good luck, this is best I got ~~ Cris H. 

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