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Digitally Filtering Out the Drone of the World Cup

timothy posted more than 3 years ago | from the it's-called-an-off-switch-use-it dept.

The Media 602

qubezz writes "World Cup soccer fans may think a hornet's nest has infiltrated their TVs. However the buzz that is the background soundtrack of the South African-hosted games comes from tens of thousands of plastic horns called vuvuzelas, that are South Africa's version of ringing cowbells or throwing rats. It looks like the horns won't be banned anytime soon though. A savvy German hacker, 'Tube,' discovered that the horn sound can be effectively filtered out by applying a couple of digital notch filters to the audio at the frequencies the horn produces (another summary in English). Now it looks like even broadcasters like the the BBC and others are considering using such filters on their broadcasts."

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602 comments

I dont need it. (5, Funny)

Anonymous Coward | more than 3 years ago | (#32584888)

My TV already has a digital filter. Its called the off switch.

Re:I dont need it. (3, Insightful)

Chuck Chunder (21021) | more than 3 years ago | (#32584912)

I think that might be more accurately described as a binary filter.

Re:I dont need it. (2, Funny)

Anonymous Coward | more than 3 years ago | (#32584944)

I think that might be more accurately described as a binary filter.

Think of what he is using to operate the switch, buddy.

Re:I dont need it. (0)

Anonymous Coward | more than 3 years ago | (#32584978)

It doesn't filter his finger, buddy.

Re:I dont need it. (4, Funny)

Anonymous Coward | more than 3 years ago | (#32585082)

Think of what he is using to operate the switch, buddy.

I'd rather not. And don't call me buddy, pal.

Re:I dont need it. (1)

Longjmp (632577) | more than 3 years ago | (#32585148)

more like an unary filter: once you turn the filter on (the TV off) you miss all of the 11 ;)

Re:I dont need it. (-1, Flamebait)

Anonymous Coward | more than 3 years ago | (#32584936)

No need to turn it off, just change the channel to a real sport.

Re:I dont need it. (-1, Flamebait)

Grishnakh (216268) | more than 3 years ago | (#32585322)

I have a better idea: change the channel to something that isn't a sport at all. Spectator sports are a complete waste of time.

Re:I dont need it. (5, Insightful)

Anonymous Coward | more than 3 years ago | (#32585550)

DING DING DING! Sir, I'd like to let you know that you have won the Slashdot "Sperglord Post of the Year" award.

Let's break this one down for all the viewers out there, John:

"I have a better idea" - I am superior to everyone posting in this thread, particularly the parent.

"Change the channel to something that isn't a sport at all" - I don't like games that are based on physical activity and skill. Sports are for dumb jocks who have no higher brain functions whatsoever. Now excuse my while I grab my 2-liter of Mountain Dew and Doritos and go raid Sunwell (or insert other WoW raid here, I'm not up on the current MMO trends)

"Spectator sports are a complete waste of time." - I don't like sports, and therefore they are a waste of time. Never mind that my previous suggestion was to CHANGE THE CHANNEL TO SOMETHING ELSE, and that any television watching could easily be construed as a waste of time. You see, the fansubbed Anime imports I watch are not a waste of time, they are high art that is clearly superior to watching near physically superhuman athletes compete at the top of their game against some of the most skilled opponents they will ever face.

So you see, sports are pointless and the only people who enjoy them are meatheads. Thank you, Grisnakh, for helping to perpetuate the stereotype that all Slashdot posters are scrawny, basement dwelling nerds that can't participate in activities that most well-adjusted human beings can enjoy.

Re:I dont need it. (4, Funny)

MobileTatsu-NJG (946591) | more than 3 years ago | (#32585332)

No need to turn it off, just change the channel to a real sport.

Heh what do Slashdotters consider a real sport? Pod Races?

Re:I dont need it. (0)

Anonymous Coward | more than 3 years ago | (#32585034)

If you toggle it quickly enough, you might be able to mix the sound down to baseband.

Re:I dont need it. (0)

Anonymous Coward | more than 3 years ago | (#32585282)

Relevant:
http://stuffwhitepeoplelike.com/2008/01/26/28-not-having-a-tv/

Re:I dont need it. (0)

commodore64_love (1445365) | more than 3 years ago | (#32585354)

Such overkill.

All you really need to do is press the mute button, and read the subtitles on the game. :-) Now if only Telefutura would translate those subs to English. DTV gives me 6 options for language - and they're all spanish.

Re:I dont need it. (0)

Anonymous Coward | more than 3 years ago | (#32585712)

Better yet don't even turn the TV on. After all we can get our fave shows online anyway so who needs a TV. Without it we are free from that ridiculous "sport" thing that everyone always goes on about. I didnt spend many years developing a nice healthy vampire-esque paleness and aversion to sunlight and exercise to suddenly care about running around a pitch kicking balls.

a day late... (1)

Michael Kristopeit (1751814) | more than 3 years ago | (#32584960)

was at a bar watching a brewers game while the world cup was on the other tv... very annoying. i claimed it would be simple to filter it out, and confused why broadcasters weren't already doing it. no one else cared.

Re:a day late... (1)

RichardJenkins (1362463) | more than 3 years ago | (#32585162)

Maybe they'd just already read this [bbc.co.uk].

Re:a day late... (1)

Michael Kristopeit (1751814) | more than 3 years ago | (#32585208)

i hope not... given the examples at the bottom of the article page, there is no loss of the "es" and complete removal of the buzz. the bbc article was wrong. the german sound engineers, using consumer electronics made by korg, were successful.

Re:a day late... (2)

shoehornjob (1632387) | more than 3 years ago | (#32585628)

That's probably because most of them don't speek geek. I find that people who are not very tech savvy seem to filter out geek. They also tend to have a clueless look on their face after you have explained a simple concept that a 5th grader should be able to understand.

Am I the only... (2, Interesting)

aethogamous (935390) | more than 3 years ago | (#32584980)

person who doesn't find the noise annoying? (Just curious.)

Re:Am I the only... (0, Troll)

Charliemopps (1157495) | more than 3 years ago | (#32585048)

It's no more annoying than sporting events are in general. It makes as much sense to blow one of these things as it does to kick a ball back and forth down a field.

Re:Am I the only... (1)

Anonymous Coward | more than 3 years ago | (#32585060)

Yes.

It would be fine as a celebratory thing. But it goes on uninterrupted for the WHOLE FUCKING GAME. Why?!?

Re:Am I the only... (1, Insightful)

oldhack (1037484) | more than 3 years ago | (#32585088)

Cuz that's how it is in S. Africa. Stop your whining.

Re:Am I the only... (0)

Anonymous Coward | more than 3 years ago | (#32585144)

Yep. The kid with down syndrome is just that way, just let him be.

Re:Am I the only... (2, Interesting)

carlzum (832868) | more than 3 years ago | (#32585314)

I agree with you, but I didn't initially. After hearing that the first time, I wanted FIFA to put an end to it immediately. But the organization's president summed it up nicely when he said "Would you want to see a ban on the fan traditions in your country?" The knee-jerk reaction would have been to eliminate or limit the horns. I admire FIFA's decision, they valued the host nation's fans over the international media.

The sound bothers me, but I don't want the World Cup to become a homogenized TV event like the Olympics.

Re:Am I the only... (5, Insightful)

Kreigaffe (765218) | more than 3 years ago | (#32585766)

It's not a tradition it's a fad. These stupid things only began to be made and sold in south africa around 2001. That's not tradition. That's a fad. They never stop. It's not just during the game.. they NEVER stop. It's dangerous to be around them without hearing protection. They've been measured at 127dB. That's louder than a rock concert.

And would I want to see a ban on fan traditions in my country? Um.. yeah. Yeah, that would be a good idea. FIFA really SHOULD start cracking down on fans acting like self-indulgent assholes and feeling entitled to act that way because, holy shit it's FOOTBALL and obnoxious hooliganism is part of the TRADITION dontchaknow.

At what point should they step in? How about when fan behaviour actually starts HARMING OTHER FANS.. which these horns do.
frankly I'd be overjoyed if this world cup turns out to have received abysmally poor viewership due to these things. Maybe then they'll act.

Not alone (1)

alexhs (877055) | more than 3 years ago | (#32585074)

Am I the only...person who doesn't find the noise annoying? (Just curious.)

No, you're not, I'm in the same position. I'm not watching BTW ;)

Talk about cultural intolerance...

Oh, but starting your answer in the title, however, IS definitely annoying ;)

Re:Not alone (1)

commodore64_love (1445365) | more than 3 years ago | (#32585554)

The people bothered most by the noise is the players. They've been the ones complaining loudest. Those of us in the stands or living rooms can stuff plugs in our ears, but the soccer players can not. They say they can't hear the refs yelling-out calls, or directions from coaches. It's disrupting the game.

Re:Am I the only... (1)

bloodhawk (813939) | more than 3 years ago | (#32585086)

possibly, I have turned off games because of how irritating I find it and I doubt I am the only one. Noise and atmosphere are one thing, but the endless drone of those f@#$@#$ horns is just plain stupid.

Re:Am I the only... (4, Insightful)

AdmiralXyz (1378985) | more than 3 years ago | (#32585094)

No, you're not. Not minding the sound is perfectly fine, but I've seen a lot of comments around the Internet insinuating that if you hate the sound of vuvuzelas, then you're a colonial racist who hates South African culture. As opposed to, say, someone who hates sounds that are really fucking annoying.

Still, if the BBC and others are going to start filtering them, we get the best of both worlds. Nothing has to be banned, no ugly racial tensions are stirred, and we can watch the World Cup without being driven halfway to insanity. Count me pleased.

Re:Am I the only... (2, Funny)

Knara (9377) | more than 3 years ago | (#32585128)

Wait, that's all I have to do to regain my status as a colonial power?

I never knew it would be so easy.

Re:Am I the only... (0)

Anonymous Coward | more than 3 years ago | (#32585324)

Why can't the Saffers just enjoy their football with racist chants like everybody else?

Re:Am I the only... (5, Insightful)

horza (87255) | more than 3 years ago | (#32585484)

if the BBC and others are going to start filtering them, we get the best of both worlds

Except we don't. The players are unable to communicate on the pitch in any way, leading to the worst standard of play. As players cannot be warned when somebody is behind them, they just play safe and hoof the ball up the pitch just in case. The world's top players are being made to look like talentless hacks in dull low-scoring games. This may well go on to be the worst World Cup, and after this the Champions League finals may go on to eclipse the World Cup finals.

Phillip.

Re:Am I the only... (2, Insightful)

|TheMAN (100428) | more than 3 years ago | (#32585600)

so by that logic, isn't that like saying *I* hating rap music (in general) means I "hate" bla^H^H^H^HAfrican Americans? if they're whining and moaning about outsiders imposing on their "culture", who's to say they're not doing so on all the other 31 countries' matches? what the hell does the vuvuzela have anything to do with a italian vs paraguay match (for example)? just ban the f'ing things for all matches except for when their beloved south african team plays if they want PCness the monotony and annoyance is no different than hypnosis oh and this so-called "culture" and "tradition" started in the 1990s according to various other websites I googled regarding the vuvuzela issue and it appears to be a strictly ZA thing

Re:Am I the only... (1)

Chuck Chunder (21021) | more than 3 years ago | (#32585106)

It just disappears into the background for me. I wonder if it helps if you've spent a reasonable amount of time around noisy computers.

Re:Am I the only... (1)

Wyatt Earp (1029) | more than 3 years ago | (#32585110)

No, its not that annoying, at least on the TV.

In person, I bet it's really farking annoying.

Filtering is Uncalled For (0)

Anonymous Coward | more than 3 years ago | (#32585000)

I think this is how it should stay - as a hack. If you want to watch the coverage without the vuvuzela, take it out yourself. Broadcast networks should deliver their audience the experience of the match - and if that includes the vuvuzela, then so be it.

Nobody would be complaining if the sound happened to be people chanting and yelling loud enough to drown out announcers. Because it is something foreign, and probably also because it is African, they're all upset.

If you look at the coaches and players who complain, they've all either lost or drawn their games. Everyone is playing with the same noise, and if some can't deal with it, they're to blame. Clearly it didn't effect Germany.

Re:Filtering is Uncalled For (1, Insightful)

DJRumpy (1345787) | more than 3 years ago | (#32585050)

Cheers and yelling add to the excitement. These plastic toys just add to the irritation. I had to listen to a segment this morning just talking about it, and was forced to mute the volume it was so grating. Easier to just ban the damn things and then they can go 'unfiltered'.

Re:Filtering is Uncalled For (0, Troll)

cacba (1831766) | more than 3 years ago | (#32585158)

Ban them so you can watch the 1 minute highlight in peace?

Re:Filtering is Uncalled For (3, Insightful)

DJRumpy (1345787) | more than 3 years ago | (#32585240)

No, so you can watch the entire game without a beehive buzzing in your ear. Come to think of it, this will probably resolve on it's own via the advertisers. When they figure out everyone is muting the game, and no one can hear their ads as a result, you can bet pressure will be applied on the stadiums to ban them. Although there may be thousands who go to the game to watch, there are millions made on commercials from the millions of viewers who catch the game on TV.

Re:Filtering is Uncalled For (1)

IBABad1 (1705968) | more than 3 years ago | (#32585686)

I thought the MUTE button IS for commercials. At least that's what I use it for.

Re:Filtering is Uncalled For (0)

Anonymous Coward | more than 3 years ago | (#32585752)

And in a bar where you don't control the TV, but are forced to listen to it, including the buzzing?

Filtering is called for (5, Insightful)

name_already_taken (540581) | more than 3 years ago | (#32585112)

Because it is something foreign, and probably also because it is African, they're all upset.

Bull shit.

People are upset because the noise is extremely distracting, conveys nothing about the fans' excitement with the game, and according to a South African audiologist who was on the news yesterday, the sound is well past the threshold for causing hearing damage.

It would be one thing if the sound changed to reflect the excitement of the crowd during the game, but it doesn't. It's just a constant loud wall of sound at basically the same level from the start of the game to the end.

It's similar in level and monotony to running jet engines at full throttle on test stands in the stadium, throughout the entire game. It doesn't add, it detracts.

What you are saying is that traditions have to be respected, no matter how stupid or disruptive they are.

I propose an alternative. All other countries should create a tradition of randomly setting explosive charges off in their stadiums whenever the South African team is there.

It's our tradition, and you have to respect it.

Re:Filtering is called for (2, Funny)

Ethanol-fueled (1125189) | more than 3 years ago | (#32585250)

All other countries should create a tradition of randomly setting explosive charges off in their stadiums whenever the South African team is there.

Or apartheid. Beat them at their own game and make 'em sit on the grass a mile away from the stadiums.

Re:Filtering is called for (3, Funny)

wowbagger (69688) | more than 3 years ago | (#32585390)

I propose an alternative. All other countries should create a tradition of randomly setting explosive charges off in their stadiums whenever the South African team is there.

Since that is not a part of our culture, may I suggest an alternative that is a well established part of our (geek) culture: pointing laser pointers at things. Imagine if every geek in the audience pointed one of the WickedLaser 1W blue lasers at the opposing goalie....

Re:Filtering is called for (1)

Culture20 (968837) | more than 3 years ago | (#32585474)

Imagine if every geek in the audience pointed one of the WickedLaser 1W blue lasers at the opposing goalie....

You just made me remember Shaolin Soccer. Thank you.

Re:Filtering is called for (1)

Michael Kristopeit (1751814) | more than 3 years ago | (#32585448)

It's similar in level and monotony to running jet engines at full throttle on test stands in the stadium, throughout the entire game. It doesn't add, it detracts.

i would totally agree with you, except just this week, with the bases loaded, casey mcghee was at bat in milwaukee while the blue angles were practicing for the weekend air show... they buzzed the stadium right as the pitcher released the ball and casey was forced to take a called strike, and slammed the bat down in disgust. if there were already constant jet engines running during the game, there would be no chance of that distraction ever happening. it might not make anyone more focused, and probably makes them less focused, but also makes them less susceptible to random distraction, and perhaps completely immunized to it. i think it adds AND detracts... i'm not a fan of them.

Re:Filtering is called for (0)

Anonymous Coward | more than 3 years ago | (#32585496)

Note sure how this was in any way insightful.

> conveys nothing about the fans' excitement with the game

Yep, people are just jumping up and down and blowing horns because they are NOT EXCITED! Are you serious?

> It would be one thing if the sound changed to reflect the excitement of the crowd during the game, but it doesn't

Have you even watched any of these games? Of course the sound increases at exciting points of the game...

> What you are saying is that traditions have to be respected, no matter how stupid or disruptive they are.

How are these traditions disruptive - what have they disrupted ?

Do they cause fights like the English football matches?

Do they get drunk like the college parties in the US?

Nope - people are just having fun - get real.

> I propose an alternative. All other countries should create a tradition of randomly setting explosive charges off in their stadiums whenever the South African team is there. It's our tradition, and you have to respect it.

Not sure what tradition this is - care to enlighten me?

What a completely idiotic comment - "get off my lawn"

Re:Filtering is called for (1)

Michael Kristopeit (1751814) | more than 3 years ago | (#32585588)

Have you even watched any of these games? Of course the sound increases at exciting points of the game...

maybe his TV has smartsound, or some other technology that attempts to keep the volume relatively stable... i'm sure those chips get pretty hot during these games.

Thank the gods (2, Funny)

Dexter Herbivore (1322345) | more than 3 years ago | (#32585772)

I fell asleep on the couch watching a game the other night... I woke up from a nightmare of being attacked by giant bees.

Using that argument... (0)

Anonymous Coward | more than 3 years ago | (#32585298)

...the horns should only be sounded when its African teams playing.

Re:Filtering is Uncalled For (0)

Anonymous Coward | more than 3 years ago | (#32585376)

Because it is something foreign, and probably also because it is African, they're all upset.

They are upset because 120 decibels going off behind your ear causes hearing damage, and the sound is so exceptionally loud that it disorients the players.

Medical studies have proven the sound is well into the range at which permanent hearing loss occurs. That's why the players, coaches, and doctors want them banned.

vuvuzela website (4, Funny)

LowG1974 (1021485) | more than 3 years ago | (#32585062)

Having not heard the sound of the vuvuzelas, I click on the link to their website. Cleverly, they listed these ALTERNATIVE Uses for the VUVUZELA:

1. Cricket bat.
2. Hearing Aid.
3. Petrol funnel.
4. Water sprayer. (force trumpet side down into water)
5. Drinking funnel. Nuff said.
6. 4G mobile communication
7. Walking stick,
8. Light saber. (Just insert a torch) as seen on Starwars...
9. Jousting Stick (simply insert one into another.)
10. And of coarse... supporting any team/thing you like...

Opensource Cross platform Puredata Patch Vuvuzela (3, Interesting)

Anonymous Coward | more than 3 years ago | (#32585122)

Me and my friend made a Puredata patch (http://puredata.info) to filter the vuvuzela sound. You have the ability to choose the sound also, making it more dynamic.
check it at http://joaomartins.entropiadesign.org/2010/06/15/vuvuzela-filter-a-puredata-approach/

Re:Opensource Cross platform Puredata Patch Vuvuze (0)

Anonymous Coward | more than 3 years ago | (#32585236)

Although it's for the geeky-minded football fan ( a rare kind of mutant ) ... I support it

Re:Opensource Cross platform Puredata Patch Vuvuze (2, Interesting)

rlameiro (1834346) | more than 3 years ago | (#32585300)

well, its a bit geeky, but it is cross platform and open source :D

Too much work (3, Interesting)

Al Al Cool J (234559) | more than 3 years ago | (#32585130)

When the World Cup started, I thought of playing around with notch filters to remove the noise, but the whole thing just reeked of effort. The human brain is actually pretty good at filtering out noise if you give it a chance. Just watch the games and don't worry about the vuvuzelas and before long you won't even notice them. I don't. It's a lot like what happens when you live next to a highway.

Re:Too much work (1)

slugicide (932022) | more than 3 years ago | (#32585230)

It's not just that the buzz sucks, it's that the songs and chants and crowd reaction is drowned out.

Re:Too much work (0)

Anonymous Coward | more than 3 years ago | (#32585652)

When the World Cup started, I thought of playing around with notch filters to remove the noise, but the whole thing just reeked of effort. The human brain is actually pretty good at filtering out noise if you give it a chance. Just watch the games and don't worry about the vuvuzelas and before long you won't even notice them. I don't. It's a lot like what happens when you live next to a highway.

That's true. You probably don't even hear the spinning of your computer fan a few feet from your ear.

Oh, you do now?

My bad! Have fun sleeping tonight while you are torrenting!

The most annoying sound in the world. (1, Interesting)

Anonymous Coward | more than 3 years ago | (#32585140)

Turn up your volume and go to Robot 9000 [4chan.org]. Warning: your sensibilities may be offended by the other content.

Re:The most annoying sound in the world. (-1, Redundant)

Anonymous Coward | more than 3 years ago | (#32585640)

Rules one and two!

inb4 "soundblock"

Re:The most annoying sound in the world. (0)

qubezz (520511) | more than 3 years ago | (#32585782)

To be annoyed by /r9k/ (at least audibly), Javascript is required. You almost got a mod down 'offtopic' because I block [mozilla.org] this kind of nonsense by default.

Wow, bad editing (4, Informative)

Arivia (783328) | more than 3 years ago | (#32585150)

The BBC themselves has an article up (http://news.bbc.co.uk/2/hi/uk_news/magazine/8738604.stm) about the ineffectiveness of this filter, the issues filtering out the noise of vuluzelas could cause for the coverage in general, and the rest of their own good reasons for NOT using this shim.

Re:Wow, bad editing (1, Insightful)

Anonymous Coward | more than 3 years ago | (#32585248)

"I'm looking at its wave patterns and there are at least six very strong harmonics in there. It would sound really horrible to notch these out - if one coincides with the vowel sound e, you won't be able to hear the -es in the commentary. It would sound unnatural."

"They can also change the balance between crowd noise and the commentary box, as these have separate mics."

Couldn't you then just apply the notch filters to the crowd mics ?

Re:Wow, bad editing (1, Insightful)

Anonymous Coward | more than 3 years ago | (#32585264)

That's a surprisingly bullshit-packed article for the BBC. There's a key paragraph in the middle that the rest of the article blithely ignores, pretending they can only filter on the combined audio:

"They can also change the balance between crowd noise and the commentary box, as these have separate mics. But they wouldn't want to take out the crowd noise completely, because then there'd be no atmosphere," says Mr Cox, who is also professor of acoustics at Salford University.

  It's rather unlikely that the commentator's mics are picking up much vuvuzela sound. If they are, switch 'em out with directional mics and maybe even do the traditional technique of noise cancelling by using a second mic. This is easy and cheap to do. It's the crowd mics that are picking up all the crap, and it really doesn't matter too much if you slice out a few frequency ranges there.

Eh.. (1)

StikyPad (445176) | more than 3 years ago | (#32585182)

My brain filtered it out after about 30 seconds. I actually think it's slightly less annoying than the background cheering during a typical NFL game.

Re:Eh.. (1)

riceboy50 (631755) | more than 3 years ago | (#32585200)

It doesn't bother me either. The buzz of the stadium lends excitement and dramatic tension to the match.

Re:Eh.. (0)

Anonymous Coward | more than 3 years ago | (#32585204)

It's really bad for casual watching... if I want to just turn the tv on and do something else with half an eye on the TV.

Cheering during a typical NFL game isn't as bad, because the cheering isn't constant the whole game. Cheering gets louder or softer depending on what is happening in the game. From what I can tell, the vuvuzelas go at a constant loudness no matter what happens during the game.

Re:Eh.. (1)

StikyPad (445176) | more than 3 years ago | (#32585558)

...the cheering isn't constant the whole game. Cheering gets louder or softer depending on what is happening in the game. From what I can tell, the vuvuzelas go at a constant loudness no matter what happens during the game.

Exactly. It's much more difficult to tune out a sound of varying intensity than a monotonous drone. How often do you notice your computer fan? Or your central air? Or your sprinklers (if you have them)? More often when they're new, then maybe for a few seconds when they first turn on, but after that it fades into the background. I think the biggest reason people have a problem with it is because it's different than what they're used to; it's new.

Re:Eh.. (2, Interesting)

v1 (525388) | more than 3 years ago | (#32585734)

after listening to the "before" and "after" application of the notch filter, I quickly noticed that when you removed the vuvu's, you ended up with a slightly quieter, equally annoying general sound of the crowd.

The announcer really wasn't any easier to understand when the vuvus were removed. The audio's average level was just a little lower. (which did make it slightly easier on the ears)

Not much of an improvement. I can't imagine them banning vuvus would have much of an impact on the game -- for example, the crowd noise itself would be almost equally effective at preventing the players from communicating. So unless you're going to surround the pitch with a Cone of Silence, you're just going to have to deal with noise, whether you're on the pitch or behind the big screen.

What are the chances of that? (5, Funny)

DigitAl56K (805623) | more than 3 years ago | (#32585188)

Chatroulette and sports broadcasters all trying to filter out the horn on the same day?

Streaming filter using SoX on Linux (4, Informative)

rbeattie (43187) | more than 3 years ago | (#32585228)

I wrote up a blog post about using Sound eXchange (sox) to filter the sound here: http://www.russellbeattie.com/blog/linux-command-line-streaming-vuvuzela-filter [russellbeattie.com] , but the short version is this:

rec -d vol .5 equalizer 233 .1o -48 equalizer 466 .03o -48 equalizer 932 .02o -48 equalizer 1864 .2o -24 | play -d

or from a response to my post here: http://www.yusufk.za.net/?p=520 [za.net]

rec -d | play -d vol 0.9 bandreject 116.56 3.4q bandreject 233.12 3.4q bandreject 466.24 3.4q bandreject 932.48 3.4q bandreject 1864 3.4q

After testing, I feel the parameters could be tweaked a bit more - but these definitely make a difference.

-Russ

hysterical... (0)

Adult film producer (866485) | more than 3 years ago | (#32585232)

Not a big soccer (futbol) fan myself but I thought people were overreacting to the noise... shit, what sporting event doesn't have some crazy noise. I caught this video on youtube this afternoon and laughed my ass off....

http://www.youtube.com/watch?v=ih-ykzmodQQ [youtube.com]

It's pretty shocking even to me.... the buzzing sound is nonstop? whats up with that?

I'd like to figure out a way to modify the vuvuzela to produce the brown note..... then distribute them free to everybody in SA :-)

South African Here (0, Troll)

Anonymous Coward | more than 3 years ago | (#32585406)

As a South African, I wholeheartedly support anything that annoys the opposition.

After listening to what the British call "singing" ( same sound a cat makes when held by the tail ) - the vuvuzelas come as welcome break.

Nick, Cape Town

Re:South African Here (-1, Flamebait)

BearRanger (945122) | more than 3 years ago | (#32585452)

If only I had mod points... This is no more annoying than the singing that goes on in other countries. Or the rioting and drunken hooliganism.

Re:South African Here (4, Insightful)

Kenshin (43036) | more than 3 years ago | (#32585664)

As a South African, I wholeheartedly support anything that annoys the opposition.

Just don't expect "the opposition" to bring their shows to your country anytime soon. No FIFA, no Olympics, no big international events of any type. They're all gonna watch at these broadcasts, listen to the worldwide complaints, and mark "don't broadcast events from here" with an arrow pointing to South Africa on their maps of the world.

Re:South African Here (0)

Anonymous Coward | more than 3 years ago | (#32585802)

If the South Africans can bring their tooters, then can I bring my LRAD system?

Captain Obvious (0)

Anonymous Coward | more than 3 years ago | (#32585418)

discovered that the horn sound can be effectively filtered out by applying a couple of digital notch filters to the audio at the frequencies the horn produces

Captain Obvious to the rescue.

Get a vuvuzela! (0)

Anonymous Coward | more than 3 years ago | (#32585510)

It is simple - buy a vuvuzela and start blowing it yourself. I did that and suddenly the noise does not bother me at all!

And foreigners should stop complaining about vuvuzelas - they had a say in the matter, and that was when they bought, or more accurately, did not buy, tickets. If they bought enough tickets, FIFA wouldn't have had to pack the stadiums at the last minute by selling a bunch of cheap tickets to us South Africans. Less South Africans means less vuvuzelas.

As a South African citizen I am very offended. Our tax money went towards paying for this (and we make no money from this, never would have), we had to buy the tickets that foreigners did not take up and we are actually there to support the foreign teams. But the press overseas go OUT OF THEIR WAY to be negative. From ridiculous BS that we are on the verge of a race war (http://www.thesun.co.uk/sol/homepage/news/2920139/White-supremacist-murder-sparks-World-Cup-race-war-fears.html), while the actually reality is more something akin to the biggest party ever (http://www.news24.com/SouthAfrica/News/Soweto-residents-welcome-rugby-fans-20100522).

The Vuvuzela's is just the latest - find something that can possibly be wrong and focus exclusively on that. Well -- the McDonald's ads right next to the field is WAY more distracting and irritating than any vuvuzela IMHO.

Old Technology (1)

PPH (736903) | more than 3 years ago | (#32585522)

The notch filtering is probably quite similar to that developed to remove the nasal drone of Howard Cosell from football (American) game broadcasts.

I got a fever and the only prescription.. (0)

Anonymous Coward | more than 3 years ago | (#32585564)

IS MORE VUVUZELAS!!

vuvuzelas are a recent tradition (5, Informative)

$lashdot (472358) | more than 3 years ago | (#32585566)

An earlier poster wrote:

I've seen a lot of comments around the Internet insinuating that if you hate the sound of vuvuzelas, then you're a colonial racist who hates South African culture.

The funny thing is that the vuvuzelas are a recent introduction into South African culture. They are not only post-Colonial, they are post-Apartheid.

The maker of the horns admits that the prototype came from the USA... http://www.boogieblast.co.za/vuvuzela.htm [boogieblast.co.za]

and this has been known in wider soccer circles for at least a year... http://www.footballiscominghome.net/the-hosts/the-vuvuzela/ [footballiscominghome.net]

and while the plastic horns have been around since the late 90s in South Africa... http://www.southafrica.info/2010/vuvuzela.htm [southafrica.info]

the current mass-producer only started up in 2001... http://www.vuvuzelas.com/about.html [vuvuzelas.com]

Additionally, there's the blaringly obvious notion that the vuvuzela looks nothing like the kudu horn it allegedly comes from and looks everything like a cheap rip-off of the sort of long thin horns you see draped with flags playing fanfares when kings enter in films set in the middle ages, but I suppose it's expecting a lot for everyone to think critically. Last time I checked, kudu horns didn't have embouchures, either, which is what allows the plastic horn blowers to last all game.

Re:vuvuzelas are a recent tradition (1)

treeves (963993) | more than 3 years ago | (#32585732)

"The maker of the horns admits that the prototype came from the USA." I've seen/heard them here in the states (Portland, OR) at soccer games (in very limited numbers). I'd also seen an article (at bbc.co.uk I think) that said that there was a Baptist church in South Africa who are quite upset that the vuvuzela is being used this way since they use them in religious ceremony, and play it a lot more skillfully. Theirs are metal, and it was undesirable to let crowds carrying three-foot long metals horn into stadiums, so they made them of plastic instead. I'd guess the real reason is plastic is cheaper by far and easier to fabricate. I found this: http://aubreygroves.blogspot.com/2010/06/disturbing-vuvuzelas.html [blogspot.com] So what is the real origin?

Good start but... (1)

snowboardin159 (1744212) | more than 3 years ago | (#32585610)

Its too bad that more countries havent adopted the American style of Football, but i'm sure glad theres noone in my family that watches soccer. On topic, theres a MUTE button that works real well on my tv for filtering out annoying sounds, and also soccer is so boring in the first place this just seems like a signal to turn the channel.

Marketing tip for next time (1)

Jeff Archambeault (41488) | more than 3 years ago | (#32585670)

Its probably to late to make a large enough batch that are 180 degrees out of phase with the ones currently being used, but for next time, making 50% of them out of phase would make them self-quieting.

Maybe a ringtone or mp3 that is 180 degrees out could be quickly deployed.

Two negatives make a positive, and two positives make a negative. Yeah, right.

If you are distracted by horns at a football game (1)

axl917 (1542205) | more than 3 years ago | (#32585750)

then you have the attention span of a piece of lawn furniture.

I love it, it adds color and atmosphere to what has so far been several rather ho-hum matchups.

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