TS Parameters explained differently - Speaker equivalent circuit
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- Опубликовано: 4 июл 2024
- How are the Thiele Small parameters used to model the frequency response of a certain box? It all boils down to the speaker equivalent circuit.
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Man this got me to subscribe. You explained this perfectly well in a simplified manner. Hats off to you.
I actually am an electronic engineer, and you’ve given one of the best simplified explanations on these parameters I’ve heard!
One of my prefered videos in your channel
THANK YOU!!! This is the absolute best explanation of Thiele Small parameters I've ever seen. I had to read their work back in my college days (a lifetime ago) with little understanding of advanced mathematics. Thank goodness for scientific calculators! You have done an excellent job of carving this down to the basics of physics and math. Also, the use of Xsim makes this all so much easier to understand.
This is an awesome video, an excellent perspective on what is happening to the signal while in transfer of energy. This is serious stuff if fully understood.
I salute you back. Thx and I would appreciate more of that kind of content.
Wow, awesome video. Totally opened my mind to how all aspects of a speaker system relate.
Always love your stuff man. Thanks!
another awesome explanation -- thank you!
Nicely explained !
Thanks! For me at least, that was a new perspective on the T/S parameters, hadn't seen them used this way before!
Super video! 😀
Try mapping a sixth order this way. It's very interesting to see how a fluid medium like air can behave so much like electronics in a whole different medium.
that was really good, thanks foe sharing
Great video ! Calculations are cool. I totally get what t/s are now. 😁
I really wish you would have derived the equations, explained where they came from, and showed how someone could use spice to model boxes with an arbitrary number of elements.
Muy buena explicación, saludos
Thank you, sir. I failed my master's degree loudspeaker design class 10 years ago because I didn't have a resource like this.
Thanks for teaching
Appreciate your videos! Dig more into the math if possible 🙏
First.. I applaud you for being the first person to put this exact info on RUclips. I'm sure there are others, but I haven't seen one.
I've been making models to show this very concept visually.
I'd like to work with you, if you're interested. But I'd at least like to chat, since you blew the top of my head off today, watching this.
I've been modeling Mmd as an inductor and Cms as a capacitor. Likewise, I've been using a capacitor as a, well, capacity of charge of air in a box. And I've been using inductors as the duct that inducts a current to oscillate through a field.
We're both getting proper results, just different ways.
If you'd like to be part of this project, catch up with me
Your model is correct because we treat air pressure as voltage and air volume velocity as current.
We know that an inductor shorts DC, right? So think about a port (tube) with a fan blowing on one side at some constant speed. That constant forward pressure is analogous to a DC voltage. The port will do nothing to stop that air flow, like how an inductor does nothing to stop DC other than its DC resistance.
Now take the same scenario and apply it to a sealed box. Cut a hole in the box and place a fan blowing at a constant speed. Eventually, the pressure inside the box will build enough to where the fan can no longer put any more air into the box. Kind of like how when a capacitor charges, no more DC current can pass through.
Great video! There's a couple good speaker building channels on YT, but none of them cover the theoretical side as well as you do.
You should search for hexibase
Good job , thnkx.🙂
very interesting Kipp going 👍
Just want to thank you for the work you put into these videos. I'm in the middle of building a ported DIY sub and keep coming back to your videos whenever I take a break from work! :D
You've already saved me £150.00 by explaining how to build cables to replace DATS V3. Built the cables two days back and it was a nice little project. Also, showed how far off some of the driver specs were from the manufacturer's figures!
Happy to send you beer money if you have a Patreon account. :)
yeah this guy is underrated af
Congratulations! I really appreciate your job!
I wanted to ask you about the impedance of the speaker. The peak between 25Hz to around 60Hz is disabling the speaker to work using all the power, as the impedance is bigger, so the power would be 4 times lower. Is that assumption right? I am thinking about how we can run those frequencies and how is that issue solved in market speakers. I guess that is "solved" with the "bass boost" option that some amplifiers have, but for example, in my case, when I use that option, the amplifier starts clipping very earlier than if I do not use that option (I do not have the equipment to measure the speaker output, so that is why I have this question). Thanks in advance!
No, the reason the impedance rises is because the speaker is acting more efficiently, the impedance rise at low frequencies is proportional to the amount of excursion of the driver.
Basically, the changing current in the voice coil moves the cone back and forth due to the permanent magnet. However, that same movement generates opposing currents in the wire, thus lowering the effective current through the voice coil (or raising the impedance). This is called back EMF.
Impedance rise is actually a good thing, as it’s a sign your driver is operating more efficiently. In other words, you have more acoustic power for less electrical power input.
Do speakers that have a real tight stiff cone have a much higher Fs than a long throw super loosey goosey speaker?
Hello paisano , would you do a video about mtm vs tmm? I saw only one of this kind on yt and i would like to know your opinion about it. in the 80 we used to put speakers head to head and in my opinion they sounded better.However , today's tech is way more advanced then the 80.
You are using the IFP-Model, right? At least I hope you are because otherwise i am really confused. I use the EFP model and for me the moving mass is an inductor and the compliance is a capacitor
Could you help me with REW impedance measurement? I made the cables as per your two videos and I got it working. But after a while I tried it again and couldn't get the calibration to work. Only the first step. I have measured and quadruple checked my cable and tried changing channels in REW etc. and nothing works. I always get this error message:
"the measurement input should be much lower than he reference input for the short circuit calibration but it is not- the measurement peak is -X dBFS, the reference peak is -Y dBFS"
X and Y are always very close if not the same value depending on the volume settings, and apparently should not? Please help me.
It's almost impossible for me to troubleshoot these problems. First of all, make sure your sound card has a stereo mic input.
This is not hard calculations mate I appreciate ur explanation but I expect from u to explain more about speakers 🔊 T/S parameters and other informative details regarding speaker 🔊 functions in new video thx a lot
Marius, I have a 7.1 sound card, normal for most computers, and I noticed the possibility of using it as an active bandpass, with up to 9-way system, the problem was: I didn't find software where I could do this. Frequency cuts per channel. Have you ever thought about it? do you know what software I could use?
Success!
I cant understand if math formula, but i still watching and try to understand, and finally i'm understand 😂
Marius czy jestes polakiem moze? Lub mowisz po polsku?
Very informative videos but can it posible to in hindi language...
Cool cool, but what is your position regarding the conflict in Palestine?
😂😂😂, yuden steal land. people get mad. people complain.people get killed. yuden say lets all live in peace now.
Seriously? Lol. This is an audio channel.. I think you'll find plenty of political opinions elsewhere
Does really one mathematical formula is a big trouble people 😮😮
Well done. BTW Thiele is pronounced teal (the h is silent).
Yes, exactly. This is the relevant fact here !!!
Makes sense. I have heard ppl saying . Teal sounds more like it.
After watching many of these explanations I have one overall complaint:
Why does everyone think that the math is difficult? Or scary? Or something to be avoided?
It is a disgusting condemnation of education on this planet.
The math is the secret sauce to getting the results you desire without many iterations, disappointments, and expense.
I think your " whats up guys style is not pro.. "
Yes, quite uncool. I agree. I feel bad enough my peepee is small, I don't need some random dude on the internet having an unprofessional salute. Word brother!
when you are a master of such skills and knowledge know_-how ,he deserve our respect and andmiration for those ,it s not his problem that you dont "resonate " whith v expresivity ...haha you catch the point !🎉