Sound Card Calibration Help - Newb

[pbc]

Hi,

Just downloaded REW and am having a heck of a time calibrating the SB Live USB card. I have adjusted all the settings and connections as per the FAQ threads on REW and the SB Live. When I calibrate the mic, I get the following graphs. Just wondering if this is what I'm supposed to see as I just can't figure it out!!

Thanks!

Steve

[brucek]

Just wondering if this is what I'm supposed to see as I just can't figure it out!!

Looks good to me. You should of course save that soundcard calibration file.

The reason it looks strange is a result of the exaggerated scaling used when the soundcard is calibrated. The vertical axis is only -3dB to +3DB. See the green line in the response. That is the soundcard calibration. It's only down about -2.5dB at 5Hz. That's a great response. REW will apply a curve exactly opposite to that green line after you take measurements to compensate.

The black line shows the microphone response curve. When exaggerated it does look bad, but modify the vertical axis and you'll see it's all fine.

Carry on, take measurements....

brucek

[pbc]

Okay thanks, the black line is what had me worried!!

Cheers,

Steve