Recent content by dcibel

thanks John. As a feature request, it would be nice to be able to show the noise floor result on the SPL tab in addition to the distortion tab.

Ah, I see it now. It's shown whether the phase trace is enabled or not, so it looks a bit out of place when phase isn't shown, since there's no phase axis units on the chart.

Hi John, I was measuring some capacitors today, and noticed that when the "overlay model traces" is selected for the component model, there's an additional horizontal dashed line near the bottom of the chart. Also, set graph limits for impedance is having some trouble with very small values...

ETC, or an impulse response for that matter cannot be determined with constant stimulus signal measured via RTA. So, you can use RTA for many aspects of real-time response analysis, for ETC, RT60 decay, etc. you need to run a sweep measurement.

Use File -> Import -> Impedance instead of drag and drop, it will be imported properly.

What's wrong is the speaker clearly has a filter installed. Impedance is falling >1kHz. T/S parameters should be of raw driver only, and measurement from 0 to nyquist freq, or at least 20kHz.i would also be somewhat concerned of a 1 ohm load at high frequencies.

In a word, no. BL and Mms ultimately play a big role in overall driver sensitivity, and combine with other factors to define Qms, Qes, Qts, Vas, etc. All Joe explains in that video is that they developed a higher sensitivity driver. If you want to know how "quick" your driver is, simply...

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.