Summary of Publication:

> Horn loading is frequently used in sound reinforcement to increase efficiency and directivity of high and mid frequency transducers. Low frequency horn loudspeakers are less common due to their large size. Increases in available amplifier power and thermal dissipation in transducers have led to widespread use of high power, low efficiency dual 18” bass reflex loudspeakers. However, some manufacturers and enthusiasts continue to develop and use low frequency horn loudspeakers for their high efficiency and subjective audio quality. In the fields of live event production and noise control, there is sometimes a perception, or “urban myth” that horn low frequency loudspeakers project or “throw” sound a further distance than direct radiating low frequency loudspeakers. This is either considered to be beneficial, or problematic depending on the context. Considering the relevant acoustic theory, it is not immediately apparent why this should be the case, providing the loudspeakers are level matched and of similar physical dimensions. Unfortunately, there is very little investigation of low frequency horns in previous literature to aid in providing a definitive answer. Measurements in this paper demonstrate that horn and direct radiating low frequency loudspeakers and arrays closely follow the theory, and the difference in propagation loss is within measurement uncertainty. The implication for noise control of outdoor events, is that bass loudspeaker size and type are not especially relevant factors, and focus should instead be on system/array design and site layout.

• PDF Download: http://www.aes.org/e-lib/download.cfm/21046.pdf?ID=21046
• Permalink: http://www.aes.org/e-lib/browse.cfm?elib=21046
• Affiliations: Funktion One Research Ltd. Hoyle, Dorking, UK
• Authors: Hipperson, James
• Publication Date: 2021-05-24
• Introduced at: AES Convention #150 (May 2021)

I am dead serious. It is so bad this year I can’t even avoid it at home, the noise is nonstop where I am, and I’ve got a headache from the noise pollution.

Curious how this can be legal, and if so, is it legal to fight fire with Fire by getting my own blowhorn?

So instead of eternal beeping matches you can just yell "LEFT LANE IS THE F#CKING PASSING LANE, BOY!"

I'm thinking about building a pair of towers and I want them to look unique in some way.

I really like the look of conical horns on some extremely expensive speakers, but I've heard that they're really just for show.

Is it worth trying to implement this type of design?

I'm talking less than 5"x5"x5" at 120db. It's possible to find them at this size (http://www.fourjay.com/products/marine-hailing-paging-horns), but 125 inches cubed is too much for my project. 70-100 inches cubed is more my range.

I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.

Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.

Chapter 1

Morale on the military vessel is low and everyone is on edge. Pawd'rig could cut the tension in the air with a knife. If he had a knife that could he decidedly wouldn't as he is afraid of what might come crawling out of it. For the majority of the standard day and at truly random intervals the speakers would blast out the most horrendous screaming, wailing and sobbing. It sounds like a woman watching her entire family from her parents and siblings to her lover and children are simultaneously being butchered in front of her. Talk around the ship has been they are not looped recordings. Each one is individual and different.

The screams have set everyone on edge. Many here have been the cause of such screams. Or had to watch as others caused it. So to hear it decontextualized from actual violence and in their normal lives light years from where any ghosts could be was blood chilling.

Pawd'rig thinks he knows what it is and what it means but he won't tell. He's afraid if he says it then it will come true. He concentrates very hard at not eating his food before him. It's taking him everything to not start blabbering about the demons he saw in the Nether when he was young. The demon had expositioned about how they'd sweep into his universe to bathe in blood in the name of their blood god. He plays with his food to not think about them.

They're the reason he has this awful life. At the time he was playing at being a criminal and someday becoming a famous outlaw however meeting literal demons intent on eating your universe tends to set one straight. He'd joined the military because he knew there was an existential threat out there that must be combated. His general anti-war views are very looked down upon so he keeps them to himself. In all his short career he's never actually shot someone. It’s not that his aim is terrible it's just he didn’t sign up for what the military actually want him to do. He let's people go, misses finding people in searches, he doesn't abuse prisoners, turns a blind eye to contraban. Because that's not what he signed up for.

As he musters up the concentration to bring the spoon to his mouth he, and everyone else in the mess hall, hears the sign of imminent screaming and wailing. That electronic tchk sound. The harbinger of anguish and pain. For their ears. The entire room falls into s

Do your worst!

I'm surprised it hasn't decade.

They were cooked in Greece.

For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.

I said "hey look, an escaPEA"

No one near me but it didn't half make me laugh for a good hour or so!

Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies 😂

It really does, I swear!

Because she wanted to see the task manager.

Heard they've been doing some shady business.

but then I remembered it was ground this morning.

Edit: Thank you guys for the awards, they're much nicer than the cardboard sleeve I've been using and reassures me that my jokes aren't stale

Edit 2: I have already been made aware that Men In Black 3 has told a version of this joke before. If the joke is not new to you, please enjoy any of the single origin puns in the comments

They’re on standbi

BamBOO!

A play on words.

Hi everyone. This might be a long shot, but I'm trying to figure out if there’s anyone out there who remembers a major blackout in the middle of November 2014. It was a pretty big event at the time, but I've never met anyone who remembers it, or is willing to talk about it if they do. I still have no idea if the blackout was only in my city, or if it was nationwide. If I'm being honest with you, I suspect it was global. If you remember it, then this will all make sense to you. If you don't, then you're probably going to think I'm crazy. Maybe I am. I'm hoping somebody out there can tell me I'm not.

When a major event occurs that shatters our collective view of normalcy, we process it by sharing our unique account of it with others. We ask each other about where we were on 9/11, or bond over our shared experience of fear and isolation in the early days of COVID. I have never had the opportunity to do that with this situation. So I'm going to try to do it now, if only because I’m worried about what might still be to come, and because I have nobody to talk with about that fear.

The blackout happened on the evening of Thursday, November 13, 2014. Back then, my ex and I lived close to her parents, and we'd visit them pretty often to have dinner and watch TV. It was typically a pretty uneventful affair, and we were usually too burnt out from the workday to socialize much. We just watched our shows in silence, occasionally sharing amusement at a joke in a sitcom, or debating a theory about a show's plot mystery. That's pretty much how this night was going too, until the lights went out.

It must have happened sometime between 7:30 and 8:00, because we were watching Jeopardy when we lost power. It was weird, because there was no inclement weather, and it was actually perfectly clear outside. As our eyes adjusted, we could see the stars out the living room window, brighter than any of us had ever seen them before. We could also see some lights flashing in the distance. It was an eerie green light, flashing near the horizon like lightning in a distant storm. I figured it was probably transformers blowing, and when my ex asked what the flashes were, her dad (Neil) said the same thing. As far as we could tell, whatever was producing the flashes wasn't making any sound, but it's entirely possible that it was happening too far away for the sound to reach us.

My ex's parents lived in a suburb not exactly close to our city on the US west coast, but close enough that th

Pilot on me!!