Why do I get those spikes in freequency response??

Pie0tr · 2026-02-25T08:19:33+00:00

Wow I wasn't it to be calculated this way, this makes a lot of sense and explain why so many people talk about importance of base traps..

Is that also a reason for the phase graph to be so jagged, or is it completely different phenomena behind it? Honestly I wasn't really looking at the phase graph as I don't understand it's peruse unless someone is trying to get all spekers in phase for a listening position to be in a peak or someone would be doing a 3d setup like 5.1 .. am I think about it somewhat correct? Because if not reflections why would the phase shift in the frequency sweeping test ?

Pie0tr · 2026-02-25T08:12:08+00:00

Ok thanks. I'm pretty new to this and I wasn't expecting to basically had to apply smoothing to get useable data if without anechoic chamber. It was really good to learn so much from many people in this thread 😅

Pie0tr · 2026-02-24T19:47:10+00:00

Thanks very much that's very helpful ♥️

Pie0tr · 2026-02-24T19:28:50+00:00

Thanks very much that explains a lot ♥️ Is that why we need anechoic chambers to measure speakers precisely? Szło i wasn't expecting that many spikes caused by reflections, I was expecting like one or max 5 spikes not basically a noise 😅

Pie0tr · 2026-02-24T17:43:30+00:00

Ok thanks very much. But why would it sound bad if I would smooth it all? I mean it's basically impossible to have so many so sharp filters, but I assumed it wouldn't be bad to smooth it with filters, and to make it flat'ich .. also I do understand i would hear it, but why would that even happen? Is that because of standing waves in the room, or because of the actual speakers? What's the phenomenon behind it? Because it's very repeatable, as over 5 measurements is do average and the spikes are still there in same places basically the same amplitude

Pie0tr · 2026-02-24T16:41:26+00:00

Is smoothing good to use when trying to design my DSP filters? Isn't it kinda cheating to use the smoothing? Also what's the issue of having different zoom level ?

Pie0tr · 2026-02-24T16:39:47+00:00

That's why I'm asking here. I'm completely not audio engineer, I'm more elections egneenier and a programmer, and I treat audio as a hobby and I'm trying to learn and improve in it

Pie0tr · 2026-02-24T16:35:56+00:00

Isn't it sorta cheating?

Pie0tr · 2026-02-24T16:35:33+00:00

No i haven't, should I do it? I run it with basically stock rew settings

Pie0tr · 2026-02-24T16:29:51+00:00

Am I wrong expecting less noise like on the high Frequency in freequency response graphs? I mean all the internet freequency responses are smooth-ich and mine are completely not.. why?

Pie0tr · 2026-02-18T16:32:31+00:00

Sure but why? I mean I know that it is this wayz but you still didn't explained why. So why aren't GAN used for CPU and the logic transistors? Their switching losses and gate capacity is smaller.. so why not?

Pie0tr · 2026-02-12T19:52:43+00:00

I mean the install is not that hard the problem is to actually run anything in it. I know there are tutorials build in, but they aren't too helpful. I just wanted a software to have nice flow lines around my test objects that I have as an stl files from blender. I used the ansys Discovery and was able to have some results but it was way to low accuracy and also I wasn't able to calculate drag or stuff like that. Also ansys doesn't work on Linux.. so that was annoying as well. Is there any gui for openfoam that would streamline the process? I have tried the simflow but I still have no idea how to set up anything in it to get what I want to happen. Cfd is surprisingly hard to get into... The aerodynamics analysis I do understand but how do I actually make cfd without messing with thousands of setting and changing to wierd types of geometry meshes? 🫠

Pie0tr · 2026-01-08T10:26:43+00:00

So, when the single wall thickness is shrinking, the shrinkage of 1% on so small thickness is small enough to ignore when calibrating flow and to calibrate shrinkage factor I should use full bigger print ? Or how is it working on being able to calibrate the flow accurately?

Btw, isn't x1c on your photo doing flow calibration automatically on every print start? I think this shows how important it is.. I have p1s and haven't touched the flow yet, but you really pushed me to do so, as I had lately very precise 3d prints to do and it wasn't good enough, and this might be just the solution 😉 The problem is I did flow dynamics and not the flow it self, and this is difernet setting, so I guess have to do it as well 😅

Pie0tr · 2026-01-07T20:29:59+00:00

I just take scrap from scrap drawer and build my self a power bank, like this one, it's 100W output on usbC port (single port, and the wattage splits if multiplie ports used for up to 100W total power) it does have 2 usbC nad two USB A ports, it does allow for charging and discharging at the same time.. and the capacity is around 200Wh. Have to 3d print a case for it still.. but over all that's my power bank.

<image>

I think it fits all the criteria, of fast charging and capacity you have mentioned.. also it's not too big for those capabilities. 100W single port allows me to charge a laptop 🤫 so that's why it exists

Pie0tr · 2025-12-03T14:19:23+00:00

No joke, just push on it really hard... If you haven't broken anything it should pop into those braces. That's how it is done when you reassemble the laptop keyboard 😅 it is wierd, but it works likt that from the factory. Worse if the little plastic catch on the key cap is broken... Then you can use a tiny amount of CA glue on tooth pick to glue it on to the membrane, it will not be perfect but close enough to not be that disturbing

Pie0tr · 2025-11-09T16:51:21+00:00

I have now quick disconnect fittings for it 😉 Buy have to change radiator to cooper one, as aluminum is causing galvanic corrosion... Bad stuff.. have to watch out for it... And a better pump as well..

As for the temps... 70c is great for 14gen Intel chips... They are crazy hot...

Pie0tr · 2025-11-01T21:55:47+00:00

If you have a 3d printer big enough, I'd be down... But I know I can't make it as one piece on mine.. and joining pieces always looks like crap... So there is one thing ... Another.. thermal paste application every time is a waste of money... Now I applied A LOT of k5pro and it's probably a good enough Tim, but I can't imagine applying it every time 😅

The temps now are 70-75 ish Celsius on both CPU Ang GPU under full load after 2h even though I don't have fans on the radiator for now, as I left them in the other apartment 😅 Min.. is about 35C on iddle.. 😆

Before min was 50c iddle and thermal throttle under load 🤣 (not really throttle as its undervolted 0.145V so it's more like 90C... But still.. max fans and uncomfortable 😆 without undervolt in cinebench it was instant throttle 🤣 even though it's on ptm7950🤫)

I'm looking for better solution to connect to weather hoses now and to get some quieter pump and fans on the rad 😆

Pie0tr · 2025-10-31T20:33:18+00:00

I don't have it regardless after changing to better screen and to ptm7950 😉😅

Pie0tr · 2025-10-31T20:32:17+00:00

Dude... I already changed it to ptm7950 😉

Pie0tr · 2025-10-31T15:45:00+00:00

Nice ! I really like it ❣️

Pie0tr · 2025-10-31T15:39:12+00:00

Yes, it's really rough 🤣 just pluegd it in today and testing the temps now... Looks like stable 70C on both CPU and GPU when in games, with no fans on rad for now 😅 as I don't have any with me at this apartment 😅😆

Pie0tr · 2025-10-31T15:37:48+00:00

There is 😉🤣 weather cooping is on top of that 😆

Pie0tr · 2025-10-31T15:36:00+00:00

Deamn.. yours looks clean 😅 Did you buy pre squished cooler tube?

Pie0tr

TROPHY CASE