Understanding HORN speakers!

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Understanding HORN speakers!

Рет қаралды 11,217

Real World Audio

Күн бұрын

Пікірлер: 32

@realworldaudio Жыл бұрын

Dear Viewer, the link to the coffee-station, or, as I could call it, the Tea-house is right here: www.buymeacoffee.com/RealWorldAudio This is a way to support my channel in a hassle-free manner, and you can contribute as low as 2$ if you feel compelled. If so, I welcome your support with a warm welcome, it goes a long way to allow me to continue with this channel in the future! All your support will go towards improving this channel, and towards the tweaks and components I explore on the channel. János

@EduardBroekman 2 жыл бұрын

Great video. It's curious that great violins, besides their tone, are also excellent at projecting sound at a distance.... Corner loading is so interesting: perhaps also due to the diagonal setup, but beside the obvious boost, I get less bass cancellation and standing waves, at expense of image depth (in stereo, mono depth is entirely unaffected)

@Sunrayman123 2 жыл бұрын

I really, really enjoyed your presentation of basic concepts. Looking forward for the next episode! Thank you for taking the time to share your knowledge! I am an avid book reader, but that gets dry and fatiguing. In fact, I have a very basic Italian book on Architecture which is simplified like this for various types of structures, and as an engineer I learned so much reading those fundamental concepts I wish I had read that before I delved deep into the mechanics (statics, dynamics and strength of materials) before I got bogged down into the mathematics. Keep up the good work! I'm a fan...

@karafarinperesentati Жыл бұрын

Amazing. Thanks!

@realworldaudio Жыл бұрын

👍👍👍👍

@ravirajpatil4576 3 жыл бұрын

Great

@bobnot24 3 жыл бұрын

Excellent. Really appreciate the walkthough from the first principles.

@ReyciclismoMTB 3 жыл бұрын

Great video, I been reading about Voigt. But not much about his actual designs is available. Your stuff is technically enough, but easy ti follow for a layman. On to video ll.

@realworldaudio 3 жыл бұрын

Grazie! ; )

@turdview5869 2 жыл бұрын

Great video! I’d really love to see more in this series. Particularly with respect to the physics of sound. Is there a part 2 yet?

@realworldaudio 2 жыл бұрын

Thank you! Yes, there are parts 2,3, and 4!; ) Here's part 2: kzfaq.info/get/bejne/jaeGiKZ6v7OdaJ8.html

@NickP333 2 жыл бұрын

Excellent video. I used to own a National Duolian resonator guitar from 1936, which basically had a horn instead of a sound hole in it. It was obviously an acoustic unamplified instrument, but it was loud! So, is an instrument like a trumpet acting like a transmission line or a folded speaker with a driver with a horn at the end of it? Thanks, Janos!

@realworldaudio 2 жыл бұрын

Hi Nick, that was a perfect description of a trumpet! I’ve heard of the Duolians but never heard one live. :)

@vikassm 3 жыл бұрын

Wow! Exactly what I was looking for. Simple explanation & good presentation. This video series should have way more views. Thanks for the upload, I will share wherever I can. Keep up the good work! 👍👍

@realworldaudio 3 жыл бұрын

Thank you for joining and for your support! My goal is to bring together a strong, creative audio community, those of us who are intent on progressing on their audio journey.

@helloitisitheintolerableba4016 2 жыл бұрын

Nice video but the information is incorrect. Often you are describing “wave guides” rather than “horn loading”. To understand this better, look up acoustic impedance matching and compression. Without compression, there can be no horn loading, and therefore no impedance matching between the sound source and the listening area. That’s what makes a horn. Regarding the conical shape of many driver diaphragms, the reason for this is to make a rigid yet light weight piston to push and pull the air molecules in front (and behind) the diaphragm. Rigidity is needed to avoid mechanical distortions in the sound we hear, and low weight is needed to reduce the amount of energy required to move the diaphragm forward and backward quickly. The diameter of the “throat” of a driver, ie the voice coil diameter, versus the “mouth” diameter has no direct relation to the frequency range produced by that driver. In short, in and of itself, no driver is a horn.

@realworldaudio 2 жыл бұрын

Thank you for your kind comment. Just one example, and you can deduct the rest from this one: You need no compression to achieve horn loading. For example, just think of the plastic cone to amplify the human voice. No compression, just place it in front of your mouth. Sure, the cone does not change the frequency range, but alters the amplitude quite a bit.

@helloitisitheintolerableba4016 Жыл бұрын

Correct, a cone in front of your mouth is a horn. In this case, the compression chamber is the inside of the mouth and/or lungs. For horn loading to occur, there must be a compression factor greater than zero.

@PoloABD Жыл бұрын

So.. is saying ‘horns match the impedance of the driver to the air’ kind of a redundant statement? That would be the case if it’s simply directivity=efficiency, I would have thought.. With small bass horns, like a small front-loaded bass horn, the mouth is often too small to provide significant directivity, and yet the lower frequencies are amplified. Genuinely interested if someone can clear that up for me 👍

@realworldaudio Жыл бұрын

It means we are getting higher sensitivity, that is, better conversion of power output to acoustic energy. The mouth size is responsible for low end horn-loading, high end frequency defined by the throat diameter, amplification (aka impedance matching) by length of the horn, and directivity and dispersion defined by shape / flare. The acoustic impedance matching is about matching the air speeds exiting the driver membrane to the speed of the air motion in the room. As the mismatch between driver & room decreases, efficiency increases. (Think of the subwoofer port specifications: 10m/s, and such values.... while the elicited motion in the air in the room is but a millimeter/s or so.)

@PoloABD Жыл бұрын

@@realworldaudio thanks.. I guess what I’m wondering is whether there is an ‘exact match’ (given a certain room size/conditions, say), or whether efficiency would go on improving the more the horn is able to increase the loading on the driver (bigger, longer etc)? And to what extent are ‘average’ horn loaded systems match the air impedance vs direct radiating.. I know the SPL increase is in the region of 4-8dB (which is a lot, of course).. so taking for example an 8” mid with gains of 6dB over DR.. Thanks

@reinhardfelgenhauer6536 3 жыл бұрын

Hi, is there a possibilty to use a normal Tweeter in an horn?

@realworldaudio 3 жыл бұрын

Yes, you can horn load a regular tweeter, it does not need to be a compression driver. Also, it needs not be a big horn, even an inch deep horn makes a very pronounced impact - better efficiency hence, the tweeter will have a much bigger dynamic working range.

@reinhardfelgenhauer6536 3 жыл бұрын

@@realworldaudio Thanks a lot.

@adamlabarge2317 3 жыл бұрын

How did you come to say that the fundamental frequency of lighting is 100Hz? I google searched around for this and closest I found was talk of Florissant lightbulbs at 100Hz. Can you point to a reference or reasoning for this?

@realworldaudio 3 жыл бұрын

"3.4 The dominant frequency of thunder energy is in the 100 Hz range." lightningsafety.com/nlsi_info/thunder.html

@adamlabarge2317 2 жыл бұрын

@@realworldaudio Thanks. I could not find that. Amazing it is only 100Hz.

@Sunrayman123 2 жыл бұрын

@@realworldaudio Aren't thunder and lightning two separate phenomena?

@realworldaudio 2 жыл бұрын

@@Sunrayman123 The electrical discharge in the atmosphere creates a visual effect that we see as lightning, and an atmospheric pressure wave that we hear as thunder. They happen together, but based on the distance, cloud coverage, altitude, etc, we may hear only the thunder and not see the lightning, or we see the lightning and do not hear the thunder. Yet, they both occur at all times, two consequences of a single cause (the massive electric discharge).