Hi, I am 99% certain that the measurement is from the microphone:
Evidence 1: Curve changes when moving microphone closer or further away.
Evidence 2: Curve REALLY changes when I switch on the subwoofer.
I will of cource do further measurements and at some point post the drawings of my speakers. I have no secrets here ;-)
I have only tried HOLMImpulse for half an hour, started with Arta but it crashed the drivers of my soundcard so often and that requires a reboot.
At this point the speaker that I have built will be stripped apart and rebuilt due to some problems with the glue, and some sparks from the bias connection. Also, the frame is just a temporary thing.
Regards
Bent
Evidence 1: Curve changes when moving microphone closer or further away.
Evidence 2: Curve REALLY changes when I switch on the subwoofer.
I will of cource do further measurements and at some point post the drawings of my speakers. I have no secrets here ;-)
I have only tried HOLMImpulse for half an hour, started with Arta but it crashed the drivers of my soundcard so often and that requires a reboot.
At this point the speaker that I have built will be stripped apart and rebuilt due to some problems with the glue, and some sparks from the bias connection. Also, the frame is just a temporary thing.
Regards
Bent
when measuring nearfield it should be flat,farfield measurments will show the bass caccelation effect.jer
looks like the the tresshold of the mic is to low or the output of the speaker to low. i think only the upper frequency got above the noise the mic or room has on its own. look at the 5 hz its flat, but on a pretty high level. but im sure the mic wont even register 5 hz as well as the soundcard wont put out 5 hz, so you should try the measurement with a bit higher volume. at least thats my gues because this would be way to flat for any speaker measured in a room.
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