How can you filter out the vuvuzela?

Sixty Symbols takes a look at the dreaded vuvuzela and how it can be filtered out of World Cup football broadcasts. More physics at http://www.sixtysymbols.com/

Category:

Sports

Tags:

• vuvuzela

[brilliantfranz]

Fuck ! How could you possibly not to love this guy ! He's like the Physics version of Professor Poliakoff

[Chaosynthesis]

Moriarty uses Audacity!

[elijohua]

He's using Labview! Hell yeah.

[HiTimeNZ]

You talk about filtering, and then talk about an "anti-wave" (opposite wave) that is on the net, that one should avoid. But this is exactly what I'd like to see - as it could be handy round my place where the local school across the road has taken to using these bloody things as their school bell (playtime, lunchtime, etc etc). Drives me nuts. Is this 'anti-wave' thing not the same as Active Noise Reduction - such as pilots headsets etc. If not, can you explain?

Cheers, Duncan.

[Diemedes]

Moriarty rocks.

[SpikeZeek]

however an acura with a gdi engine(gasoline direct Injection) has microphones in the speakers to pick up unwanted engine noise and cancels the "sound wave disturbances".

[TheRumpletiltskin]

@KaptenN they wont be clear notches, but they will (for the most part) be noticeable in contrast to a person speaking.

[KaptenN]

@TheRumpletiltskin So even when a vuvuzela is played badly it will still make clear notches on the frequency spectrum?

[CommanderdMtllca]

Well the way some thing sounds (called its timbre) is due to its different harmonics. So regardless of how that instrument is played it will always produce the same harmonics. The instrument itself is just a fancy looking amplifier

[TheRumpletiltskin]

@KaptenN you do the same thing, and use an eq or noise cancellation program to kill it.

the WAVES bundle has an excellent program to do this.

[KaptenN]

But the spectators at world cups doesn't blow such nice tones as the trombonists you have there. How does the frequency spectrum differ from those clear notches when the vuvuzela is played the wrong way, like you did at 0:27?

[FHomeBrew]

The worldcup season was pretty upsetting. Such an utter disrespect for the arts. Tryin' to watch a vuvuzela concert, and the people start playing soccer and people start shouting about that :(