Recent content by paul8

I'm doing in-room measurements on a couple of my subwoofers, REL and KEF, I'm getting sensible results for frequencies 20-50Hz, but 63 Hz somehow makes no sense. At 63 Hz REW shows THD exceeding CEA limits even at very low levels, and for both subs, which makes no sense to me, since 50Hz results...

All good suggestions, will also try to disconnect my Mac from power outlet for measurement session, thanks!

Yes, I did loopback calibration for Scarlet Solo, if that's what you mean.

Could be, "direct" mode was on though on Scarlet Solo. I'm mostly surprised that noise levels were much higher compared to measurements done by other people on same receivers (Denon and Yamaha), they used pro tools though.

Yes, I played with levels and was able to get reasonable measurements, but it was rather tricky, basically I had to reduce input gain/level on the USB card side to almost 0 to prevent clipping. Regarding original Scarlet Solo issue, once I switched from balanced input to TRS issue got resolved...

OK, I switched to creative SB usb card, the card itself plays very well with REW and shows reasonable 0.05% THD-N, I'm even able to calibrate it. However trying to measure my receiver THD by sending 1KHz signal to it using card's TOS output, and feeding pre-outs into the card's input I get some...

I did, when I check levels in REW everything looks good, I'm able to match out and in around -12 dB, but then when running actual test REW reports low input level. My guess is REW doesn't play well with Scarlet drivers on Mac...

I'm trying to measure Scarlet Solo USB audio interface internal noise and THD, and it shows very poor values no matter what I do. This is on Macbook Pro M1, BTW. Scarlet itself is not clipping judging by the indicators on front panel. I basically just connect balanced input with right channel...

Hey there, I run some tests against my REL HT/1205 sub-woofer using REW's built-in CEA-2010 burst tones, on the chart attached it appears the sub can hit 10 Hz at 70 SPL - this seems impossible, the sub is rated 22 Hz at -6 Db. Do I misread the chart then? My test setup is like this: REW on...