Red NT1A always overdrives with a slightly louder voice?

I stream regularly on Twitch and I noticed that when I get a little louder, I totally overdrive…

That annoys me extremely, because I'm actually very perfectionist.

As I said, I have the RODE NT1A and the Behringer XENYX 802 mixer.

Can someone help me stop this problem?

Yes, make it quieter. (gain on the behringer desk - the switch at the top).

Turn down the gain

Turn the gain control, preamplification lower.

Windows would turn the microphone level to about 50 times on the side.
Turn OBS on the microphone to full volume.
On the mixer, turn the volume up to maximum and then increase the gain on the mixer until you are in OBS at approx -18 when you speak normally.
For me it is almost exactly 50% based on the gain on the mixer.
This means that your microphone is leveled in relation to everything.
Then you adjust everything around the microphone in terms of volume.
Of course, nothing should be louder pointed microphone. You should always be understood well. The "Limiter" filter related to the "Desktop Sound" can help.
Background music is for me on -40 to -35 e.g.
When it comes to games, it just depends…

So that you can be sure that it is not overdriven, I would activate a compressor as a filter in OBS. The best thing to do is to download "Reaper VST Plugins".
Otherwise, use the OBS standard compressor as a filter and set it correctly. That should only trigger if you are louder than usual. In the best case, not at all if you speak normally.
The Reaper compressor can be adjusted much more precisely and is generally better, so I would rather use this one.
If you are satisfied with the microphone even without this compressor, you can of course leave that as well. Doesn't have to be.

This means that your microphone is leveled in relation to everything.

This would of course require that the effective sound pressure level at the membrane is known.

You mean that if it fits perfectly for OBS, it doesn't necessarily fit for other programs as well? So there are of course volume controls in most other programs, but I would be surprised that it fails with the hardware in relation to various software. This is the same for the entire PC, unless I misunderstood you or you misunderstood me.

What can distort everything before the signal is somehow relevant in OBS or other software?

The microphone sensitivity indicates how much voltage is output per pressure (mV / Pa). My condenser microphone has electronics that can only process certain levels without distortion.

The microphone signal is then pre-amplified - if the amplification factor is unsuitable, this leads to distortion. Either the preamp itself is distorted; or the digital-to-analog converter behind it.

Sure, you can set OBS in such a way that there's no undesirable influence on the signal. But if the signal that is offered to the program has been undesirably falsified at a point before; that doesn't bring anything.

OK, I'm not that deep into this matter.
I choose Gain in Windows and Gain on the mixer so that it sounds best for my taste and the volume that I want is reached, which goes hand in hand anyway, with all other volumes being turned up to the maximum.

Personally, I have 56 gain in Windows, about 50% gain on the mixer and everywhere else the volume is technically turned to max as far as the microphone is concerned.
Of course, you can't just pass it on to all microphones like that, I also understand.
It just doesn't seem wrong to me after various people have done and explained something similar in tutorials.
Nobody has complained on Discord or in the streams either.

E.g. My microphone initially operated with 15V and now it should have been with 48V for a while, although the microphone could also be 15V. The switch has also changed some things in terms of volume or level and also the distance to the microphone. I couldn't quite leave it as it was before. Small changes to the level can do enough, as I found out, purely by ear.

Or, in your opinion, am I doing something wrong for home use now that you are obviously more familiar with this topic?

Information technology represents a link between classic electrical engineering and computer science.

Either you learned it in your apprenticeship / apprenticeship or the event is basically worthless.

Well, we didn't learn anything about microphones, that's just the thing.
You obviously have to know a lot about it if you want to set it 100% optimally and professionally, which is irrelevant for most IT technicians, since you never need it in most areas.
I'm just of the opinion that it is enough as I and most of the others do, after all it sounds good. That's why I recommend it that way.

It is clear that many people also need knowledge of electrical engineering in connection with IT. Is everything run on electricity…

So I would never say your last comment about microphones in the face of an IT technician, because it does not mean at all that the person necessarily has, or needs to know, sufficient knowledge about this particular topic.

But I will still read more into this topic, after it is helpful for me privately. So thanks for the info.

It's not about microphones per se. The microphone is a signal source and then it's about the signal adjustment and signal processing of the source. How the voltage in the microphone comes about, how the converter system works, etc. Pp. Is certainly not the job of the computer scientist. But if the signal voltage is simply adjusted with the dowsing rod, that is certainly not professional.

I would also have no problem saying that in the face of every technician I have to work with. If the signal doesn't get into the computer cleanly, we don't have to talk about further processing at all. The overdrive leads to clipping; that leads to a square wave signal and that brings about aliasing effects - Congratulations, your expensive microphone now sounds 'digital' in the negative sense.

Leveling is not the big rocket science either. But you should do it well and knowing what you are doing is extremely helpful.

I would recommend Eberhard Sengpiel to read. A very good source on the subject.

Where can I see this level?

The way I do it, you can see it in OBS under "Audio Mixer" under "Microphone / AUX".
I would recommend this -18 on average when speaking normally.

If that's what you mean

Standard rules for micros. Micro volume to zero, master to zero gain to zero, chatter loudly in micro and slowly turn it up until the LED flashes, turn it back a little. Master to 50%. Slowly increase the volume, adjust a maximum of 70% rest on the master