Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
ReneCardenas
User Rank
Author
re: Audio awareness - a winner at the 2010 FIFA World Cup
ReneCardenas   8/30/2010 6:28:03 PM
NO RATINGS
As a soccer fan I found this audio background sounds as part of the celebration. Since soccer is still remains marginalized in USA, this is a minor inconvenience for USA viewers that did not get filtered audio. Since Soccer World Cup is a tournament that is only played every 4 years, in my eyes it is not a significant issue. USA TV broadcasters need to become more aware of every intrinsic detail required to broadcast a sanitized version of every sport. Since it appears that most TV viewers do care too much for the front-row live experience!

Jimelectr
User Rank
Author
re: Audio awareness - a winner at the 2010 FIFA World Cup
Jimelectr   8/1/2010 6:39:43 AM
NO RATINGS
Well, you caught my attention with the tagline about the FIFA World Cup providing a venue for millions of people worldwide to get a (slight) education on audio and acoustics. Yeah, to an EE, a notch filter is a no-brainer for such a narrowband interferer as the vuvuzela. As far as soccer (sorry, that's football to the ROW) goes, I'm not a big fan, but a lot of my coworkers are, and I found it more entertaining to watch them than to watch the game! (Since my employer, Broadcom, makes chips that go into DTV's, we have many screens scattered about our campus, and some especially large ones set up in the cafeteria during the World Cup). The expressions on their faces and hearing dozens of people shout, "Ohhh!" at the same time was priceless!

old account Frank Eory
User Rank
Author
re: Audio awareness - a winner at the 2010 FIFA World Cup
old account Frank Eory   7/12/2010 5:11:37 PM
NO RATINGS
On the very first day of the World Cup, when I watched part of the broadcast, I felt like the broadcaster was going to have to very quickly come up with a solution for the vuvuzela problem. It took them awhile, but they finally did. Nice to know that a sports series and the traditions of a particular nation's fans could make such a contribution to the appreciation and understanding of audio engineering by so many non-engineers!

kendallcp
User Rank
Author
re: Audio awareness - a winner at the 2010 FIFA World Cup
kendallcp   7/4/2010 12:49:58 PM
NO RATINGS
I must say that I was surprised at how long it took broadcast audio engineers to figure out how to attenuate the contribution of the vuvuzela from the 'ambient feed' coming out of the stadia. I didn't get around to checking out the sound on an FFT analyzer - believe it or not, I had better things to do on work days than watch the football - but it certainly sounded as if most of the energy was concentrated around a particular tone. putting in fairly gentle notch filters at the tone and the first few harmonics would be an obvious first step. A particularly easy way to achieve this would be to sum the signal with another version delayed by 4.26ms. This sum has nulls in the response at 235Hz and multiples - though perhaps not broad enough to eliminate everything.



Radio
LATEST ARCHIVED BROADCAST
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
Special Video Section
The LTC®6363 is a low power, low noise, fully differential ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...