Recent content by dcibel

If you want the result of multiple components or drivers in series or parallel, but only measure a single. Another comparison would be comparing driver motor characteristics, inductance is proportional to the overall driver impedance, so for a better direct comparison between drivers (like 4 ohm...

Hi John, For impedance and phase, the right click menu doesn't allow for any smoothing to be applied, however it is available via the graph menu at the top. It would be nice to see this option made available on right click selection. I find I often apply 1/48 oct smoothing to clean up...

I don't imagine the answer has changed much from 2020. https://www.avnirvana.com/threads/any-interest-in-an-rew-android-app.6580/post-49093 Linux is no problem, three steps - Download, install, run.

I think your config is a-ok, if you want you can use the pink random noise generator, it really doesn't make much of a difference from periodic noise and is a bit more pleasant to listen to. For room EQ, moving mic RTA method is quick, easy, and can get you 98% of the way there. It doesn't...

No, I flattened the response on the bottom end where the noise floor of your measurement took over. Mics need correction on the top end, not usually on the bottom.

You'll have to ask Dayton.. That's for you to decide on how much measurement error you are willing to accept. What is "good enough" to you?

Thank you John, this is perfect :)

A simple feature request, I think it would be really great if you could select 2 measurements, and they would pre-load into the selection when you open the arithmetic window.

Dayton EMM-6 calibration is awful, I guess you get what you pay for. For an equally cheap mic with proper noise-free calibration that isn't off by 40dB, go for Sonarworks SoundID. The example calibration I downloaded was only off by 3dB ;). At least, the old EMM-6 that I used to have with 4...

Here, try and load the attached cal file. It should make your mics match this well:

There's nothing wrong with the cal files other than -40db offset. But, REW seems fine with them, open your mdat, go to the SPL tab and check the box for "mic cal" at the bottom legend to look at them yourself. You should check input levels always and adjust your gains accordingly. It affects...

Hi John, I'm not sure if this is something worth looking at. I am on Linux/Wayland, and if I change screen resolution while REW is open, or my screen turns off due to inactivity, the next action creates an exception: java.lang.IllegalArgumentException: Width (0) and height (0) cannot be <= 0...

Change in level in those two images is ~20dB. Calibration files should not adjust level, the values should be centred around 0dB. If you are using "use loopback as cal and timing reference", you need to leave the "limit cal boost" option unchecked, which is detailed in those instructions you've...

Here's the image: Back to "nitpicky" items, can you please make the aspect ratio overlay visible while the main window is being resized? This is the "show aspect ratio" option under preference -> view.

I wouldn't waste your time with a SPL meter. Once you calibrate your mic, it's a much more accurate SPL meter than most any handheld device. Top mic calibrator is the one I recommended, so yes it's a good choice. You will need to craft an adapter for a 1/4" mic.