Originally Posted by AustinJerry
The REW Guide has been updated to Rev 3.91 as of December 28, 2014
Changes: Added a note to the “Measurement Guidelines” section specifying an AVR mode of “MULT CH IN” for users with full 7.1 HDMI support, while all other users should set the AVR to Stereo mode (p. 85).
Do you have shares in Spectrum Labs?
The procedure I followed to create a 90 degrees calibration file from a standard 0 degrees calibration file is easy, efficient and inexpensive. I'm sure the result isn't as good as a manually calibrated Umik1, but for those like me who had to get one from another source as SL were out of stock (it also costed more than twice the price once shipped to the UK with VAT, duty and shipping costs), it gives at least a solution to get much improved accuracy when using the microphone at 90 degrees (almost identical measurements as calibrating at 0 degrees with the standard calibration file).
For me that's the only useful information that I didn't find in the guide, which is a wonderful resource, to get me set up.
I'm sure I'm not the only one without a 90 degrees calibration file. Having to use the Umik at 0 degrees is inconvenient and using it without a calibration file or with the standard calibration file at 90 degrees is inaccurate above 1.5kHz.
Any reason why you don't seem to believe it's relevant/useful?
I would also appreciate if anyone had a comment about the 2-3db difference on my speakers levels post Audyssey between my SPL meter (75dB) and REW (77-78dB). I assume it's normal error margin but I'm not sure.
Would you suggest adjusting the sensitivity parameter in the calibration file to match the levels in REW or to leave it as it is and ignore absolute levels?