![]() ![]() Make manual changes to the result, or try different settings in the “Filter Tasks” side-window, until you are satisfied with the result. It should look something like this (but probably better measurements, this room is a nightmare):ġ2. Now close all extra windows in REW, leaving only the main window which should have 2 measurements. Remember to press “Reset averaging” in the RTA window before doing a new recording.ĩ. In REW main window, name the measurement with date and “left” or “right”.Ĩ. Press “Save” in the RTA window to convert it to a measurement which is then placed in the REW main window. You can read more about the Moving Microphone Measurement (MMM) this paper.ħ. If you want to cover several listening positions, like a sofa, use some more appropriate move pattern. Point the microphone towards the speaker you are measuring while doing this. One of the spiral is on the plane up-down-left-right and one is up-down-front-back. This can be done in many ways, but for me who has a specific listening position I chose to move the microphone as 2 spirals outside each ear, with the center of the spiral at ear height. Now we want to measure the Pink PN sound in RTA while moving the microphone slowly around the listening area, covering a good subset to get good averaging and reliable result. Sit at your normal listening position and play the Pink PN sound from left speaker. ![]() Click the picture to see how to do this:Ħ. Adjust volume until it’s about 75 dB, then close the “SPL Meter” window and stop the generator from playing. Fix sound level by first reducing volume, select “SPL Meter” and start recording, select “Generator” button, choose Pink PN and play it while holding microphone at your listening position. In settings, make sure REW is using the correct input and output.Ĥ. Start REW, press Yes to select the microphone and select calibration file (use the zero degree one). Connect the miniDSP UMIK-1 to your computer.ģ. Just make sure to turn off all DSP in Roon when doing measurements. The easiest solution for this is to use a USB cable to temporarily connect your computer to your DAC while following this guide. Another option is to save the “Pink PN” sound (more on that in the step-by-step instructions below) from REW as a wav, convert to FLAC and play it from Roon. If you don’t have your computer connected directly to your DAC, you won’t be able to tell REW to play its measurements correctly. Now that you’ve got your system primed for room correction, it’s time to start taking measurements. Only when the above is done (or at least considered!), should we focus on room correction which is what this guide is all about. Do proper acoustic treatment of your room (or use lots of furniture), see for example this guide or this one. Setup good positioning for speakers and a good listening position, check out this guide for suggestionsģ. First, make sure you’ve done the following:Ģ. Keep in mind that you’ll want to do room correction last when setting up your audio system. ![]() REW is free to download and use, so the only up-front cost is the miniDSP UMIK-1 USB microphone, or another measurement microphone like the Dayton Audio EMM-6. This guide assumes you have a 2.0 or 2.1 system, and works best if you have a specific listening position and you sit in the center of the sound, with an equal distance to left and right speaker. A 2.1 system is measured just like a 2.0 system, with the sub-woofer active during the left/right speaker measurement. ![]() Roon! Get started with your free trial by clicking here Getting Started Room EQ Wizard (free of charge, but we highly encourage donating to John’s continued development of REW)ģ. The miniDSP UMIK-1 calibrated USB measurement microphoneĢ. Digital room correction is a pivotal part of any hi-fi audio system, and can make a budget setup sound like a professional one. Roon member with the guidance of Room EQ Wizard (REW) founder John Mulcahy, took the time to write a step-by-step guide on how to do digital room correction using REW and Roon. Check it out below.ġ. ![]()
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