Did it work? EDIT: I've just seen that your depth of air space is not 40 cm, because you have a thickness of 2cm on the back and the front, so it would be 36cm. It states it in the website that it is the space from end to end of the empty space, rather than the outside of it. Unless I'm missing something and you got it right? This is what it says on the website Notes: the depth of the air space is the internal depth of the box, the distance from the inside of the panel with the holes/slats to the inside face of the rear panel. The panels themselves are not meant to move at all, therefore you should make them out of a material sufficiently thick so they don't move. Don't use 6mm MDF! If you're going with < 16mm MDF then you might like to put in a couple of braces - nothing ridiculous, just to stiffen the panels up a bit.
Id probably put silicone in between wood joins so the box is air tight.. I think I might make some Helmholtz furniture that way the space does not go to waste..
Hi Im an Architecture student and I wanted to know how you could INDUCE sounds or ‘music’ using winds. Can we use helmholtz technique or anything else to walls or to the structure of my building in order to make calming music from winds…? Also love your work! Also really appreciate your help🤗
Highly interesting content, and good explanation. I like that it goes nerdy 🤓 Please keep up the good work - post some more videos in English 🙏 Next video could be about membrane bass traps 😉😋 PS: you should respond to the questions by commenters here. Even if a long time ago, cos others may read it and wonder about the same things. And by responding you show that you care about your viewers 🌸
Do I understand this correctly, that 100x40x40cm (in your case) are the EXTERNAL measurements? At 6:15 it looks like a 40x100 panel was placed on the bottom, on it two panels and on them the last panel. That makes for a rectangle of external dimensions of 40 x 44cm and internal dimensions of 36x40 I think those calculate dimensions were meant to be internal, (it says so on the acoustic calculator site), to make a volume V=0,16m^3, and also added to that is glass wool, which also has volume - does that not need to be compensated for? For every 1kg of glass wool, you'd need to increase the chamber by 0,004m^3 to internal dimensions of 100x40x41cm.
Hi, thanks for the video. I didn’t understand about filling it with rock wool part. Do you fill the whole box with it? Or do you leave some space? Could please let me know. Thanks again!
Noté que la lista de materiales está en español, ¿pueden hacer un vídeo en español de este mismo tema? Sería increíble y les estaríamos enormemente agradecidos
Trust me a glue gun is the wrong answer. It sets too fast. Maybe if you used the glue gun to apply the adhesive, assembled it, and then baked it in an oven. But by that point, you could have used silicone or vinyl or urethane and been done with it. Even aliphatic resin is easier.
Thanks man! I had never heard of wood fiber insulation until I read you comment. Have you used them? There is almost nothing about their acoustic properties online, but Im guessing they should be amazing for acoustic purposes, and you can get seriously high density products as well. Im really excited to look into this more! Cheers 😁
Can´t help you there., all rooms are different. For my room I use 100 and 200 mm at the Side Walls and in the Back End of studio I have 600 mm . "Steico Flex" is good for Absorption @@henridarmancourt4730
If you have a say 38Hz peak problem you use the Helmholtz resonator. What do you use if you have a dip say 49Hz? No treatment for that only change listening position or shift speakers position or angle or ??
I’m no expert, but I’ve heard it’s a case of altering your monitor/listening position. Nothing else can really help nulls within a room, except making them less obvious by bringing down peaks.
@@UKoldskoolsk8r That makes sense. Aiming for no or minor dips and addressing peaks. Sometimes I think minor dips correct themselves ones peaks are addressed. Especially close to treated peaks.
I thought absorbers worked for dips too: a dip is because reflected sound pressure waves are cancelling out that frequency at your listening position. The absorber does not absorb sound that travels direct from the speaker to your ear (because it's not in between the speaker and your ear), instead it absorbs sound elsewhere in your room... which might otherwise bounce back, cancel out the sound you're listening to, causing the dip.
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Did it work?
EDIT: I've just seen that your depth of air space is not 40 cm, because you have a thickness of 2cm on the back and the front, so it would be 36cm. It states it in the website that it is the space from end to end of the empty space, rather than the outside of it. Unless I'm missing something and you got it right?
This is what it says on the website
Notes:
the depth of the air space is the internal depth of the box, the distance from the inside of the panel with the holes/slats to the inside face of the rear panel. The panels themselves are not meant to move at all, therefore you should make them out of a material sufficiently thick so they don't move. Don't use 6mm MDF! If you're going with < 16mm MDF then you might like to put in a couple of braces - nothing ridiculous, just to stiffen the panels up a bit.
AKA inside measurements.
Id probably put silicone in between wood joins so the box is air tight.. I think I might make some Helmholtz furniture that way the space does not go to waste..
Hi Im an Architecture student and I wanted to know how you could INDUCE sounds or ‘music’ using winds. Can we use helmholtz technique or anything else to walls or to the structure of my building in order to make calming music from winds…? Also love your work! Also really appreciate your help🤗
amazing idea, try simulating first
th-cam.com/video/dRYlblqXUmk/w-d-xo.html
@@vaibhavbhasin3861 How do you simulate this stuff? Most cfd tools don't give you a sound output
If you check out "aeolian harps" that might help. Some large scale ones exist, usually as art installations
Not sure if It’s quite what your looking for but have you heard of windcathers using in buildings in the Middle East? Might give you some inspiration.
Highly interesting content, and good explanation. I like that it goes nerdy 🤓
Please keep up the good work - post some more videos in English 🙏
Next video could be about membrane bass traps 😉😋
PS: you should respond to the questions by commenters here. Even if a long time ago, cos others may read it and wonder about the same things. And by responding you show that you care about your viewers 🌸
Do I understand this correctly, that 100x40x40cm (in your case) are the EXTERNAL measurements? At 6:15 it looks like a 40x100 panel was placed on the bottom, on it two panels and on them the last panel. That makes for a rectangle of external dimensions of 40 x 44cm and internal dimensions of 36x40
I think those calculate dimensions were meant to be internal, (it says so on the acoustic calculator site), to make a volume V=0,16m^3, and also added to that is glass wool, which also has volume - does that not need to be compensated for? For every 1kg of glass wool, you'd need to increase the chamber by 0,004m^3 to internal dimensions of 100x40x41cm.
Brilliant video!
Hi, thanks for the video. I didn’t understand about filling it with rock wool part. Do you fill the whole box with it? Or do you leave some space? Could please let me know. Thanks again!
Only the back wall as much as I know
How much rockwool do you put in each resonator? 50mm, 100mm... Or try to fill it right up?
Noté que la lista de materiales está en español, ¿pueden hacer un vídeo en español de este mismo tema?
Sería increíble y les estaríamos enormemente agradecidos
th-cam.com/video/1jn9I_uGLjY/w-d-xo.html
Glue guns aren’t silicone, they are a hardening material which themselves have a resonant frequency.
Trust me a glue gun is the wrong answer. It sets too fast. Maybe if you used the glue gun to apply the adhesive, assembled it, and then baked it in an oven. But by that point, you could have used silicone or vinyl or urethane and been done with it. Even aliphatic resin is easier.
I recommend : getting wood fibre insulation instead of the RockWool/Glass fibre insulation, Like the ones from Steico
Thanks man! I had never heard of wood fiber insulation until I read you comment. Have you used them? There is almost nothing about their acoustic properties online, but Im guessing they should be amazing for acoustic purposes, and you can get seriously high density products as well. Im really excited to look into this more! Cheers 😁
I really want to know why rock wool is showing up in so many yt videos. It happened around this time last year... is google selling insulation?
It´s a big a big mystery :) LOL
Hey, i'm using Steico woood wool too. 55kg/m3. What density would you recommend?
Can´t help you there., all rooms are different. For my room I use 100 and 200 mm at the Side Walls and in the Back End of studio I have 600 mm . "Steico Flex" is good for Absorption @@henridarmancourt4730
Oh my god ....glad that you made thsi video !!!! Thank you !! 😅
Thanks! Very useful!
Nice, you should however add the source name for your pictures eg: "Master Handbook of Acoustics".
Thank you for this
If you have a say 38Hz peak problem you use the Helmholtz resonator. What do you use if you have a dip say 49Hz? No treatment for that only change listening position or shift speakers position or angle or ??
I’m no expert, but I’ve heard it’s a case of altering your monitor/listening position. Nothing else can really help nulls within a room, except making them less obvious by bringing down peaks.
@@UKoldskoolsk8r That makes sense. Aiming for no or minor dips and addressing peaks. Sometimes I think minor dips correct themselves ones peaks are addressed. Especially close to treated peaks.
I thought absorbers worked for dips too: a dip is because reflected sound pressure waves are cancelling out that frequency at your listening position. The absorber does not absorb sound that travels direct from the speaker to your ear (because it's not in between the speaker and your ear), instead it absorbs sound elsewhere in your room... which might otherwise bounce back, cancel out the sound you're listening to, causing the dip.
@@davidpape1160 Yup, that's the answer. An absorber will lower in amplitude the standing wave that's eating the bass.
Yeah so if you don't want to build too many resonators I'd say build just to fix the dips and then use your DSP to dial down the peaks :)
que tipo de tela usaron para cubrir la fibra de vidrio?
Let's build Helmholtz resonator!
Thank you
Can you repost the link? I don’t think it’s working anyone
Is that link still active? I can't get it to work.
Just put Fiber Glass in pillow cases and Hang on the walls works better than a Frequency Specific box.
women are in a scoeity of resonance