Vuvuzela Filter

samer

Anyone watching the World Cup knows what the Vuvuzela is. That sort of 1 meter long trompet that generates this annoying sound you constantly here throughout the game.

I noticed that the sound is usually on the same frequency all the time. After some googling, it turned out it has a frequency of 300Hz, which got me thinking…

Can't TV stations use a band-stop filter on 290-310Hz to filter out the vuvuzela?
What do you guys think?

Flakk

TV stations could use a band stop filter on that frequency.
But I think we also can do that.
Some googling got me that the frequency is around 233hz.

But to cancel or modify frequency we either need a special equalizer connected to the audio output of the tv or an av receiver in a home theater that has these capabilities.

Or if we can build a band stop filter ourselves and try it out ?
Gonna research more on that.

That vuvuzela noise is giving me headaches.

xterm

It's very annoying.

Gomez012

It doesn't bother me at all.
Anyway Fifa is thinking about banning them.

babum

they are actually very annoying, and they never stop, NEVER. hahaha.

what about passing the signal through your computer and doing some editing with audacity or other programs?
well that would ruin the best part of the LIVE game, but its a solution.

on the other hand, you could trim your hearing system to ignore such a frequency.

rolf

It may be part of the whole experience.
Still it's weird you dont hear supporter chants anymore?? Is that thing so loud?

Kassem

I hate that sound... Maybe we should contact Al Jazeera Sports and tell them to use a band-stop filter on 290-310Hz?

Ayman

Yes it's a very annoying sound, they have to do something about it.

JRKhoury

Get me some opamps and capacitors and I'll build a band stop filter :p

samer

JR, the problem is not building the filter, it's interfacing it with the TV!

Some googling got me that the frequency is around 233mhz.

You added a few zeros :)
That frequency is not audible!

Georges

Am i the only one who's enjoying the Vuvuzela sound... It's the only thing all players won't forget for the rest of their life ;)

I wonder... [evil thoughts] What if the entire crowd decided to make this sound at the same time... What would happen!? [/evil thoughts]

mrmat

FIFA rules out banning vuvuzela horns

Flakk

samer wroteJR, the problem is not building the filter, it's interfacing it with the TV!

Some googling got me that the frequency is around 233mhz.
You added a few zeros :)
That frequency is not audible!

haha sorry my bad
corrected now :P

Flakk

Yorgi wroteI wonder... [evil thoughts] What if the entire crowd decided to make this sound at the same time... What would happen!? [/evil thoughts]

I think they are actually doing that. Thats why its so damn annoying :P

mrmat

Just found this by chance.

Vuvuzela Filter using Fedora

Its shows you a way to filter Vuvuzela in fedora and can be adapted to work on other distros and maybe windows too.

But would you go through such hassle? I wouldn't!!

Gomez012

http://www.jeuxvideo.com/news/2010/00043361-e3-2010-vuvuzela-hero-annonce.htm

For those who don't understand French:
Activision is making a game called Vuvuzela Hero, a Guitar Hero-like.

Flakk

Gomez012 wrotehttp://www.jeuxvideo.com/news/2010/00043361-e3-2010-vuvuzela-hero-annonce.htm

For those who don't understand French:
Activision is making a game called Vuvuzela Hero, a Guitar Hero-like.

haha as If the horn itself isn't annoying enough

Georges

Flakk wrote
Yorgi wroteI wonder... [evil thoughts] What if the entire crowd decided to make this sound at the same time... What would happen!? [/evil thoughts]
I think they are actually doing that. Thats why its so damn annoying :P

Hell no dude... i bet that the sounds are just 10% of the crowd at the same time... only 10%

Edit: if your statement is true, then, the crowd solved one of the biggest synchronization problems... (90.000 person, at the same moment). Not to mention the speed of sound (sound traveling from one side to the opposite one).

Zickar

Behold the Devuvuzelator ... Via Geeks are Sexy , a blog I love to read but sadly I can't copt anything from it thus you'll have to visit the link to see details : http://www.geeksaresexy.net/2010/06/15/behold-the-devuvuzelator/

But basically it allows you to filter the Vevuzletaor or whatever its called ... :D

J4D

The filter should be implemented directly at the source of reception , for example the big fluffy microphone that's taking in the sound of the audience . if i knew before i would have made them a circuit ! :P