How to Use Room EQ Wizard

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Download the REW View Settings Guide

Learn how to set up Room Eq Wizard and start taking acoustic measurements in part 1 of our 2 part series on REW.

Graham of Music City Acoustics will walk you through step by step everything you need to know to start taking measurements with Room Eq Wizard.

In part 2 of our series on acoustic measurements and Room EQ Wizard, we will show you how to analyze your measurements by looking at frequency response graphs, waterfall plots, spectrogram graphs, decay times, energy-time curves, and impulse responses.

Links:

Chapters:

0:00 - Intro
00:30 - What You'll Need
01:30 - Download REW
02:18 - Configure Audio Inputs and Outputs
03:12 - Calibrate Your Soundcard
05:28 - Load Microphone Calibration File
06:52 - Calibrate Input Level
08:57 - Taking a Measurement
11:56 - Saving your Measurements
11:45 - Analyzing Your Measurements

Thanks for watching!

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What a Comprehensive tutorial you made. Can't wait for the 2nd video. Thanks.

syap

Thanks for the video! I see in the comments a couple of people ran into the same issue that I did: everything seemed to be set up properly but REW isn't getting the input. Check the privacy settings on your MAC and make sure REW has access to the microphone (even if using an external audio interface)

elliotkillianmusic

Why did you use an external SPL meter and not just the one in REW?

isak

I was dreading doing this. Your tutorial made it very easy to follow along and was able to get my first measurement. Thank you!

djahyeahh

great software, just the soundcard calibration did work at first. Changed to a balanced cable, it worked better but still REW wasn’t too happy. Managed to get good room readings in the end. Thanks!!

MrGorecki

Note that to properly calibrate your sound interface, you need to set the "Loopback input" as "L" (left) or "R" (right) whether you're plugging the physical output of your sound interface into the L or R physical input channel. At 3m12s you're not showing that you've changed the setting off-screen.

kinonico

Thanks, I got a peculiar problem in trying to level the interface input level to the -12 dB! I could only hit -17 dB with a hell of amount of distortion. My interface is Focusrite Clarett 8PREX and i connected everything as told. There does not seem to find a way neither to calibrate nor set the levels right!

JuusoHoo

Thanks so much for this video! I started out knowing NOTHING about this, and feel like I'm on my way to making my home basement studio much less horrible sounding :)

jonmadof

Great video! How do I calibrate the sound card if I use the built-in sound card in my HP ProBook laptop? The sound card output is the 3.5mm headphone jack going into my amplifier's RCA input jack. The sound card input is the USB socket of my laptop where I would plug in my MiniDSP UMIK-1 USB microphone. How do I "plug the output of the "interface" directly into the input of the "interface" "? When you say the "interface", are you referring to the amplifier used to drive the speakers to be measured? What if my amplifier only has analog inputs (RCA) and analog outputs (speaker-out)? Thanks if you could help me understand.

darrenchan

Re the soundcard calibration @ 3:12: The soundcard calibration cannot address or correct distortion. If the interface has poor distortion characteristics, it is what it is – there’s no fixing that. Getting a different interface is the only option.

waynepflughaupt

it would be nice to have some tests with these panels that you have there in your studio to see the difference with the acoustic treatment.

And explain how using waterfall chart works to see reverbs

Top Channel one more subscriber and one more like

Thanks for helping

artedesing

Having calibrated the sound card, it is necessary to remove the loopback cable and connect a mic to the same port input as the output 1 is a speaker.

acousticdesignandcraft

Very helpful thanks! is there a work around not buying an SPL meter? can i not use a software version?

Vibration_Transmission

Super helpful. Will come back when I have my measurement mic and my gear set up. Greta delivery of information for a relative novice like me but its all starting to make some sense! Many thanks- I'll be back!

beeamadeusfox

Thanks for sharing this :)

Just a thought - would it not make sense to stay seated where you'd usually be sitting when taking the sweep measurement, so that the any effect your body has on acoustics is taken into account also?

edit: I realise as I'm watching the following video that this might be quite difficult considering the measurement mic needs to be where you head would be..

NFK