All you need to know about measuring microphones (3.5mm, USB, XLR)

[@probablyslept8142]

You are a hero man. Thanks for this truly important work 💪👍

[@padmanabhansubramanian1177]

You are doing an amazing job. Thank you.

[@BMW1M]

I have a UMIK-1 and a UMIK-2, and while I have no idea which one is actually more accurate, what I can say is the UMIK-2 measures 2-3dB lower than UMIK-1 above about 2kHz, and the resulting tune from using the 2 is a nicer sounding result.

[@RAW-CAt]

Well, as I mentioned absolute accuracy for tuning a car is not that important🙂

[@Weigel21]

Still pretty confident in my choice of the Umik-1 being a good choice.

[@DrShaggy]

Absolutely in love with your channel. And fresh recruit here. Have learned and relearned so much stuff here. All thanks to you. Love the quality of content and depth of knowledge. Since you have a helix dsp, can you please please please do a video on how to properly use the helix dsp auto eq feature. I admit that it may not be as powerful as the manual eq via REW but still if you can then please do shed some light on it. I have been using jazzis xl sheet to export house curves for helix rta recently to set the acoustic crossovers.

[@RAW-CAt]

Thanks for the kind words. Problem is that my DSP is an older one and is not compatable with the v5 software that offers auto EQ functionality..

[@DrShaggy]

@@RAW-CAt i have the same dsp, dsp pro mkII, and yes it doesn’t have virtual channels and doesn’t run on V5, but it does have auto eq and auto TA ( autoset and setEQ) and I have used it occasionally

[@examplerkey]

Thank you very much for the video. It explains a lot for newbies who are utterly confused with these things. I saw two models of 32-bit audio interfaces on sales on Aliexpress going for £22.88-£83. I'm thinking of buying one of them or buy a second hand USB mixer which I think can be used for this purpose and it will have more functions like inputs, outputs, effects, tone control, etc.

[@duroxkilo]

excellent presentation. 31:04 w/ such high frequencies because of the small wavelengths, measurements can be super sensitive to positioning (even half a cm) and/or anything changing/moving in the environment, such as the user doing the testing..

[@manu568]

Love your channel it’s been highly informative. Wanted to get a focusrite scarlet 2i2 but I am confused on which generation to buy as they don’t have the gen2 now. They are offering only the gen3 and gen4 what would you suggest ? Thanks

[@RAW-CAt]

Get whatever you can afford

[@manu568]

@@RAW-CAt Is the loop back cable required for the gen 4? Don't know for sure but someone had mentioned about a inside loop back using the focus rite software.

[@MW2gamer237]

I just found out. Thanks to your usb mic time alignment video, combined with this one. That a focusrite 2i2 GEN4 has the possibility to loopback internaly using the focusrite control 2 software. The direct monitor can be use to loopback.

[@RAW-CAt]

Good to know, thanks👍

[@BhavikPatelhr]

Great video with detail.... looking for the same video since long. I have ordered dayton audio UMM6 anf IMM6. Waiting for the delivery. You helped me in case how to use IMM6 with PC or Laptop. Thanks man.....keep doing. It will be great if you could make specific video on how to correct phase issues in home theatre setup like 5.1.4 with help of REW.

[@RAW-CAt]

Unfortunately I am not into home audio at all..

[@carlosruiz6179]

Thank you for sharing all your knowledge. I wonder if you could help me choose the cheapest alternative to the focusrite 2i4 that could work for phase and time alignment. Your videos have inspired me to invest on a dsp and other sound equipment for my crossover as well as sound deadening the whole thing but its getting expensive real fast. I apreciate your help. Greetings from Mexico.

[@RAW-CAt]

Berringer has a lot of cheap interfaces, like the UMC22

[@carlosruiz6179]

@@RAW-CAt thank you, I was watching your setup videos and figured how this works. I was also thinking of this option or the 202hd. It would also work to connect my electric guitar to my PC which I never thought of so 2 birds one shot. I appreciate your quick response. Keep up the great videos I hope I knew as much about car audio.

[@Vlad-zn2sz]

“Ignore the buzzing” killed me😂. How ever thanks for vid. I just bought Presonus PRM1. I’m curious about the results.

[@DJPapiatl]

Can you make a video showing how to use the Scarlet Interface to tune a DSP

[@RAW-CAt]

Yes, I have plenty of those. Just search for tuning on my channel.

[@DJPapiatl]

Ok will do

[@mitatcann]

If it’s possible for you to explain how loop back the cable and make cable. It is looking 2 TRS 6.3mm jack and 1 Rca jack.

[@RAW-CAt]

Watch the beginning of the video about HolmImpulse.

[@andykutscher1175]

Thank you for this content. For someone starting that's going to get IMM-6 for my first attempt at tuning, would you suggest adjusting the reference curve by 5db above 10k to compensate for the IMM-6 reading higher up there? I've seen several comparisons and that seems to be common for IMM-6. Curious if adjusting reference curve for that difference would make things more accurate?

[@RAW-CAt]

The reference curve depends on personal preference. Try flat and see how you like it. If you feel that there are some top end missing, you can adjust the curve and try again.

[@Gershy13]

Thinking about getting the imm6 as i dont need anything too fancy. What adapter dongle did you use?

[@RAW-CAt]

A cheap one from eBay. no name china brand.

[@Gershy13]

@@RAW-CAt thank you.

[@ODR73]

​@@RAW-CAt Perhaps the Chinese adapter spoiled the result of imm 6. Did you calibrate it in REW?

[@onesikm3]

@@ODR73have you tried it yourself ?

[@rideordivekerry4830]

Still waiting to see the measurement process 😊

[@krijolee8981]

can you do loopback with the 3,5mm jack mic from dayton?

[@RAW-CAt]

Loopback is a separate cable and has nothing to do with the microphone.

[@krijolee8981]

@@RAW-CAtyes i undersjanger that, and thank you for awnsering on such an old video, I really appreciate it. I’m wondering if it is possible to make a loop back cable to use with the Dayton mic, or if you need an audio interface for it?

[@RAW-CAt]

@@krijolee8981 in order to use a loopback you need to have two inputs. Laptops have only one input on the combo jack. So yes, you need an interface with two inputs.

[@krijolee8981]

oki i understand, thank you for the help.@@RAW-CAt

[@Willitbass]

What do you think of the Audio Control DM-RTA PRO KIT?

[@RAW-CAt]

It's an audio interface that has all 9f the car audio connections. Functionally it's the same as a focusrite solo.

[@MahmutTuncer-bh2bf]

Can I measure at what decibel level I am listening to music by connecting an IEM to a tube?

[@RAW-CAt]

Usb microphones are calibrated, so you can see the actual SPL level.

[@Tomzuki.]

Regarding the loopback on the audio interface, does a digital loopback work the same for impulse response measurement as the diy cable you showed? I have a Motu M2 and it has digital loopback (shows up as additional input device on Windows), my understanding is that the Scarlett doesn't have this feature.

[@RAW-CAt]

Yes, it works the same way. JL MAX has an internal digital loopback for that.

[@sainath8710]

Hi, whether it’s possible for you to explain how loop back the cable and make cable.

[@willtato8778]

Just curious, did you buy the loopback cable or made it yourself?

[@RAW-CAt]

I make all my cables.

[@markisafruit6765]

for REW there is acoustic time reference for do time alignment using UMIK-1. Am i wrong?

[@RAW-CAt]

Yes, but the clock drift still is a problem. It's not an issue for a one off measurement, but when you have to measure 6-8 drivers multiple times, that clock drift scewes the timing.

[@ambadys3354]

I have a dayton audio IMM-6 Microphone i'm planning to use it with REW software, can you please tell me how to calibrate the soundcard of my laptop

[@RAW-CAt]

Follow instructions is REW. Soundcard calibration is not really necessary for acoustical measurements.

[@Francisco12G]

​@@RAW-CAt hello, well it could be because of for example high pass filters on mic inputs. Ideally no but you never know

[@d.dickson8243]

What measurement software are you using?

[@RAW-CAt]

REW

[@bobgodd]

If you Google objective testing for the umik-1, it tests extremely well. Should do some quick google-fu and check for yourself.

[@simracingelite4004]

very helpfu;, thanks alot

[@sanekn]

Love your channel man, awesome info and I thank you for it! Have my little imm-6 ready (tho will I need an adapter or can I use it in my laptop with an extension aux?), waiting for my musway dsp to come and to install it properly and start to tune this shitty focal fiberglass 2-way, hopes are slim to make it sound good (mid is midbass in the door... :( and the tweeter is aluminium sibilant one) but I would like it to stage properly and sound a bit better. Maybe will go to 3 way active next time something like focal flax evo (what are your thoughts about it?) I don't know, for now want to stay as stock as I can. And wait for my wife to calm down at my money pit waste for car audio haha. Anyways :)

[@RAW-CAt]

You can use the imm with an extemtion, but I would recommend getting a USB soundcard, you can get one of eBay for less than $10. Focal Flax are good speakers and will make you happy. But to he honest, don't discard cheap and simple speakers like you have now, with correct tuning, they can sound very decent and image well. Play with the tining and upgrade the speakers only when you can't squeze more out of these.

[@sanekn]

@@RAW-CAt thank you man, will do! It's a shame cause I have a Volt-1 audio interface at home, could use it somehow with imm-6 maybe instead! Will try to improve the ones I have of course before throwing another grand in a new set and A-pillars remake haha.

[@kiklop8362]

EMM6 is not off look at chart shape

[@thezrn9727]

why do you sold your behringer mic?! 🤔🙄

[@RAW-CAt]

Got a better one and didn't think that I might need it. Now I bought 6 behringers for the mic array.

[@AnasSuhaimi]

The Dayton Audio 3.5mm thing also serialized and have it's unique calibration files you can download, thus calibrated.

[@Mark_5150]

He mentions that in the video

[@AnasSuhaimi]

@@Mark_5150 ah okay then.

[@arendmookhoek4314]

It'd the first thing he says too, good job man

[@praveenkispotta7703]

Good job .

[@thaddeuscorea]

The Nady and the Umik are the same mic, really, yes? just a different brand.

[@RAW-CAt]

No. Most mics look identical, but the internals are totally different.

[@thaddeuscorea]

@@RAW-CAt their response and noise floor graphs look awfully similar ? I was looking at the ECM8000 for room analysis. not really concerned with anything higher than 12k. Most concerned about the bottom. Your thoughts?

[@RAW-CAt]

@@thaddeuscorea fine for that purpose 👍

[@jthunderbass1]

I’m pretty sure that the ones that look the same, are probably all manufactured by the same company.

[@RAW-CAt]

I imagine all the shells are made in one factory, just laser etched different brand names that put their own electronics inside🤷🏻‍♂️

[@MAYDAYDEEJAY]

If You say "floor noise" once more, I'm going to unsubscribe 😂

[@RAW-CAt]

I will come up with another phrase to describe the issue🤣

[@InShadowsLinger]

@@RAW-CAtit should be “noise floor“. Floor noise is the sound that floor makes. Whereas noise floor is the level of noise that is inherent to the system.

[@mikewaters6980]

Damn it. After reading your comment I can’t avoid floor noise irritating me too. Lol. Great video nonetheless