| Please help, I may be having problems setting up REW correctly I can post graphs if you all would find that helpful. I am using a realtek sound card, Radioshack Digital SPL meter, and the current version of REW. I set it up as I thought it was supposed to be, and I am getting accurate SPL readings I believe, once I set the reference, but I don't seem to be getting accurate bass measurements. Instead of the expected lumpy response, I have a very smooth graph which from 20hz to DC has an ever increasing slope, I believe in the 24db per octave range. This obvisouly makes no sense, so I must assume something is wrong.
I calibrated the soundcard, I thought, but may need to redo that. I also loaded the SPL meter file, and set levels accordingly. I seem to be getting an impulse response, though I don't know if its accurate, it at least looks plausible. |