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gl replied on September 25, 2009 00:53 to the question "measurements different everytime" in SuperMegaUltraGroovy:
Chris,
Many many thanks for the prompt reply and patience. I have repeatable measurements now. The problem was the phantom button in the back of the art dual pre. I just need to turn it on. The graph now fully duplicate what i have with PAA3 meter and velodyne bass sweep. The fuzz measure produce data that is higher in resolution and the data is more manipulatable.
When auto correct is not use, I have very similar curves with the mix button (art pre) set to computer or preamp. What should it be?
If I use auto correct, should i set the mix button to preamp or computer?
Thanks-
gl asked a question in SuperMegaUltraGroovy on September 24, 2009 23:26:
measurements different everytimeI bought a macbook pro just to use fuzzmeasure. Primary interest is to to determine loudspeakers in room frequency response. I am using a behringer mic and the art dual pre. The measurements I am getting is vastly different every time. can you verify I have connected everthing correctly?
output: headphone jack from macbook pro, headphone to rca connector and rca to preamp of my stereo system ( I connected L ch only)
input: mic to xlr L channel input of dual pre (gain set to 12 o clock), autocorrect: mic R channel output is connected to the xlr R channel ( gain of R ch is zero). Mix knob is set to preamp. the art dual is connected to macbook via usb.
playback setting: built in ch 1
recording: codec ch 1
autocorrect: playback & record ch2
Are these setting correct? The room is not noisy. Occasioinally, I can get a curve that mimic what i have on a velodyne bass sweep system ot similar to frequency sweep with Paa3 meter. With both device, I know I have a 5db peak at 25hz and a suckout at 40-50hz
Curve seems to be better with longer sweep time, 3sec vs 1sec.
Is the headphone output from macbook contributing to the variability? Mix knob on the dual pre should be set to preamp instead of computer. Is this correct.
many thanks in advance -
gl replied on September 24, 2009 07:23 to the question "How do I use my license key file?" in SuperMegaUltraGroovy:
I renamed the file as name.fumekey3 and just clicked on it. I got a sign saying I have registered. Is this all I need to do? -
gl replied on September 24, 2009 04:26 to the question "How do I use my license key file?" in SuperMegaUltraGroovy:
the attachment file i received was NAME.fumekey3.xml
I renamed it name.fumekey3 and then try to open it with fuzzmeasure and it still would not let me open it
many thanks chris, I am a first time mac user -
gl replied on September 24, 2009 01:16 to the question "How do I use my license key file?" in SuperMegaUltraGroovy:
what is info.plist and how do i add the key to the license file
