Recent content by LeaUK

Hi John I really appreciate your response and indeed I also initially suspected stability of pots/Scarlet, although they feel mechanically very stable, but realising this could lead to error ensured no movement between measurements and cal etc. I repeated the tests to include calibration each...

Here's a thought especially considering that 0.1% resistors aren't cheap and values <100R are rare, use 10 x 1% in parallel and create various known loads to check the accuracy between 0R - 100R. If my memory serves me correctly, even if every single resistor was at the max 1%, the maximum...

You can find the guide here: impedance measurement And that's the catch, the measurement R & DUT R are both at 0.1% 100R and it's out by more than 0.2R...

Hi All New to REW so please forgive me for a while ;-) So this weekend I created the REW impedance measuring jig including a 0.1% 100R resistor to be used with my two channel Focusrite Scarlett 2i2 (headphone out) and it was a reasonable success, however I have a couple of...

Thanks John, what else could one want! Awesome! Thank you Lea

Thanks John, much appreciated, will give it a try. I note that ARTA has a way to reduce the levels when merging far and near field, can REW accomplish similar? Cheers Lea

Trying to follow this guide...http://audiojudgement.com/loudspeaker-measurements-part-2/ So I now wonder how one can scale and merge using REW? Uhm, I wonder: The Scale FR Peak control re-scales the impulse response to achieve a desired maximum SPL figure in the corresponding frequency...

Sorry I don't follow. I simply discovered the IR window which allows IR export between two precise points in time, which I believe is what's required for VituixCAD

Ah Ha! Think I've found it thanks to 3ll3d00d. https://1drv.ms/u/s!AgmKo7c0CB2xjE8-6WAO5ytsTE-l So we can set the the IR Left and Right windows appropriately, left just before the initial impulse and right just before the first reflection, then export all. Getting there :-) Edit - how did...

Hi All So I'm finally setup and measuring my speakers...BUT every guide I can find is for ARTA and maybe its just me but I'm hoping to use REW (free & has additional advantages of all the room/dsp etc built-in for later use). I have test IRs which I'd like to export, however in ARTA the...

Thanks Wayne, that's really useful. Using non-USB so will enter 75 dB, perfect, cheers.

Hi Using a Sonar Works mic with calibration file, why does REW ask for SPL calibration? Lea

Hi All Firstly, what an amazing piece of software, THANK YOU John. Precis: Can REW be used as an alternative to ARTA for Impulse Response measurements? And how? Forgive me but ARTA's manual is complex and I'm a nuub (although an ex-Electronics Eng.), REW's manual is AWESOME but I'm looking...