REW Quick Microphone Measurements Ghetto Style. Quick and dirty studio microphone response tests.
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- Опубліковано 5 вер 2024
- This is a specific case video but might still be useful.
In the event that you also have a measurement microphone, a copy of Room EQ Wizard on a computer, and an intense boredom or curiosity about the frequency response of another microphone, this is a somewhat poorly constructed tutorial on making "quick and dirty" comparative measurements of your device in question.
There are likely all kinds of missing details.
Enjoy.
Thanks for your REW demo.
Hey thanks. Let me know if there is anything that needs to be improved.
tip - you should use the "all spl" tab instead of overlays for the spl. You can do align spl from here for all visible measurements
Thanks. That's awesome!
Hi, thanks for this, I thought my microphone was broken, turns out I just suck at recording 😂
Thank you for sharing that procedure. It's exactly what I wanted to try and this link is going in my toolbox : ) I thought it was easy enough to follow. Nice low-pressure and comfortable pace. You have a talent for training imho. Regards . . .
Glad this helps! Let me know if there is anything I should improve.
You teach well. I am new to REW so I am looking for a way to level the start response of the RTA function prior to the test sound being analysed because the "ready and waiting state of the spectrum is about 40dB higher than the high frequency region. My question to you is, can I capture the ready and waiting levels by selecting record and then deselecting record so just capturing the room and any other system noises, and making a cal file out of that? I want to design passive speaker crossovers without using speakers that are not reference models. I'm thinking, your method here could be the way to go about it. Thank you for reading.
sorry, I meant to say, "ready and waiting state" of the spectrum at the bass end is about 40dB higher than the high frequency region.
I may be misunderstanding what we are looking for here, but if you wanted to look ahead or behind in time, you do not need to adjust the sweep during or even before the test. You can move the time window you are looking at by selecting the "Impulse" tab at the top, and just moving the open and close sides of the windowed measurement closer, then moving the "Ref" position wherever you want. This way you can see things like noise bouncing around in a space, and excluding the actual speaker making the sound, for instance, by moving the entire window to the right. You can do this after the measurement has been taken.
In the actual RTA, you can turn on test signals or noise independently with the generator, or even use another source if you need to. The RTA just measures total energy by frequency so this may not be what you are referring to.
@@edwardthesoundguy What i mean to say is, when the RYA is ready to do its job and transfer SPL pink noise from speakers, the ready state just before the signal switch on is not at all flat, but more like an decaying exponential curve from say, -40dB down to around -80 dB. I guess it should be bobbing around a flatish dB level before switch on.
Thank you so much for a fast reply.