television - Tag Archive

A look into the technology used in live television

1 Reply Christopher Roberts

Around the world billions of people watched the Olympic Games last month. In this article I am going to explore the technology that is used in order to get the live action, be it aquatics, basket ball or shooting, from the event, onto our TV screens.

Live TV is a little different to recorded television. With recorded television, it has often been carefully chopped up and edited before it hits our screens. With live TV, the luxury of being able to remove mistakes isn’t there, as too much a delay would mean events were actually not live. There are a few seconds of delay between real events and what you see on your TV screen, like their is with radio, however this isn’t enough time for any extensive editing.

So imagine we are watching the men’s Olympic 100 metres final. Usain Bolt lines up along with two other Jamaicans, three Americans, a Trinidadian man and a Dutch man. The starters pistol blows and then what?

Well there is a lot more video broadcast equipment involved than you might think!

The Camera

The first part of the chain is the cameras. These capture all the events first hand. At an event like the Olympics, there will usually be tens, and sometimes hundreds of cameras, and a good broadcaster will always try to keep them out of shot of each other – so you don’t get a camera panning to a shot which features another camera in it!

The camera may be free standing, or it could be on a dolly or a jib. A camera dolly is effectively a track that the camera sits on, so that it is able to move smoothly to capture moving action. A jib is a device which has a camera on one end and a counterweight on the other. A jib allows a camera to be moved freely around an area. When you see a swooping style shot on television, that will usually have been achieved by a jib.

A camera on a track

A camera dolly

The camera will have various different wires coming out of it which will ultimately lead to a monitor. Behind the monitor will be a director who decides how and where the camera is to move to get the best shot.

The Mixing Desk

The camera will then link into a mixing desk, which in a live event like the Olympics will usually be in a really big, extremely technical looking van. Inside the van will have a number of operators choosing which of the hundreds of buttons to press, and which shot should be used – don’t forget there will be loads!

This van will control the stream of visual and audio footage that is send to TV sets across the area, country and possible the world. Sometimes the format of the stream may have to be changed. To do this a digital media streamer is usually used. To see an example of what a digital media streamer looks like, have a look at the Sencore website – under the Signal Sources tab.

Once the finalised stream is ready, a great big satellite dish on top of the van (the one with the mixing equipment inside) will transmit the stream to a satellite high up above the earth.

The Satellite

The satellite then sends the signal to all the local masts where the stream will be broadcast from. These masts are usually called television masts and are often really tall thin metal structures with a flashing red light on top – to warn passing aircraft.

Your House

The television masts are transmitting the signal far and wide, and your areal on your roof will pick up this signal. It will then pass down the wires in your house and after an exchange box reach your TV, where thanks to either LEDs, plasma, or some other means, you will see Bolt steam to victory!

If you have a satellite dish the process is slightly different as you receive the feed directly from the satellite. Also if you have a portable aerial, you bypass all the wires in your house.

So, that is how a live event reaches your TV screen, and it does all of that in less that 30 seconds. Pretty amazing don’t you think?

Stepping into the future of smarter living

10 Replies Christopher Roberts

Technology Bloggers is getting bigger and growing day by day. When the community was founded in April last year, our readership was just a few hundred people a week. We now have tens of thousands of visitors a month.

With size comes opportunity, and recently we have been gifted a fantastic opportunity by British Gas. In the past Technology Bloggers has been British Gas’s blog of the month, demonstrating that they understand the work we are doing.

A few weeks ago I was offered the chance to step into the future of smarter living, becoming one of the first people ever to have a Remote Heating Control system fitted. How could I refuse such an amazing offer?

On behalf of Technology Bloggers, I am to test and review an innovative new technology which is going to be making its way into all of our homes very soon.

British Gas’s Campaign

There have been some great technological advances in the last few years in the energy sector, like for example smart meters and Baxi Ecogen boilers which can ultimately help us to be more efficient in the way we use energy.

British Gas are now starting to offer these innovative new technologies to me and you – the consumer, and in order to give the consumer an unbiased view of the technologies, they have asked a handful of bloggers to test out the technology. This handful of bloggers (including me from Technology Bloggers) will then blog about their findings, in order to help people better understand the new technologies available, and the potential implications of upgrading/installing the technologies.

Here is a television ad British Gas have launched, to raise awareness about smarter homes.
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During the campaign, my aim (as always and as stated in our privacy policy) is to remain impartial and give you my honest feedback and views on the technology. As with every technology, there are always positives and negatives. I will be exploring both the advantages and disadvantages of the technology I have been selected to test.

Series

Testing a new technology is a journey, and therefore I feel as I am going to be writing about my journey and experience of the technology, it would be appropriate for me to write in the form of a series. Our blog has had two series before, making this its third. If you are unsure what a series is, please check out our writers guide to writing a series, which gives an explanation.

I feel that if I write the posts in a constant flow (i.e.) a series, it will feel less fragmented then were I to write the posts individually.

The series will post fortnightly on a Friday, meaning that every other Friday, you will get an update as to how my experience and understanding of the technology is progressing.

The next post will go live on Friday the 7th of September.

About The Technology

The technology I am to test and review is known as Remote Heating Control, and really it does what it says on the tin. It is an innovative new technology which gives you better control over your heating, whether you are in the house or a remote location.

Heating control via smartphone

Controlling your heating via a smartphone – Android and iPhone

The technology is programmable via three methods: on the device itself; via smartphone; via an online account – accessible anywhere you have an internet connection.

The technology also has a very advanced and programmable timer system. You can set exact temperatures that you want your house to be at, at exact times. From what I understand it is very easy to set up a reasonable complex heating scheduled, to make sure your comfort is maximised, whilst you potentially save money at the same time, by reducing unnecessary heating.

More to come on the technology over the course of the series.

About Me

If you have been a loyal reader for sometime now, you probably know a lot about me, my views and the way I like to operate. If you don’t, below is an extract of my profile on the British Gas user reviews site, which can hopefully help you understand a bit more about who I am.

I am a techie at heart and love to follow the latest innovations and developments in the industry. I specifically take an interest in green (sustainable, efficient and renewable) technology, and always consider the environmental implications of new innovations.

I have always thought heating systems are inefficient, and this ultimately leads to big waste of resources. Therefore I am really pleased to be testing a technology that could potentially revolutionise the way we control our heating.

I couldn’t refuse the opportunity to test a new technology which is set to revolutionise the way we all use energy in the future, ultimately changing and hopefully improving our lives!

I really look forward to having better control over my heating, by having Remote Heating Control installed in my home and am really excited to test and review this new, innovative, green technology!

Promotion

As British Gas want to get the word out, the have said that they will be promoting the content myself and the other bloggers involved write via their website and social media. This means that the content published on our blog, could potentially help hundreds of thousands of people (maybe even millions) in formulating their opinion on these new technologies. My hope is that this should also help speed up the growth in our readership ever further.

Who Benefits

As a community blog, we are very used to analysing who benefits from a given activity, but who will benefit from this project?

  • Me – I will get Remote Heating Control installed in my home, giving me better control of my own heating
  • Technology Bloggers – I hope that the promotion British Gas can offer us will boost our readership, helping us grow the community further
  • The consumer (you) – The information and reviews of the technology I provide, I hope will benefit anyone who is a potential install candidate, make their mind up about whether or not to embrace the new technology
  • British Gas – British Gas will be getting impartial reviews which they can show to consumers, potentially boosting their sales

Your Thoughts

What are your thoughts on the campaign? Do you think it will be beneficial for the blog? What sort of things would you like me to mention/discuss in my series? Are you interested in getting a smarter home?

Throw your comments at me below 🙂

Why does superfast broadband matter?

3 Replies Christopher Roberts

Technology Blogger has had many articles about broadband speeds, superfast internet connections, and how the general trend is that global internet speeds are on the rise, but the question is, why is that important? Why do superfast speeds matter?

Download and Upload

There are two types of internet speed, your download speed, and your upload speed. Your download speed is how fast you can receive data from the internet – how fast you can stream media, receive emails, load websites etc. Your upload speed refers to how fast you can send information to the internet – how fast you can send emails, upload media, update your status etc.

When people talk about broadband speeds on the rise, they are usually referring to download speeds, as most of us get a lot more from the internet than we upload. Both upload and download speeds are on the rise, but upload speeds are usually only around 10% of download speeds – depending upon your location.


So superfast broadband means that we can do things faster, we can download and upload content quicker than we used to be able to. But that does that mean?

More Going On

Faster internet speeds mean that you can be doing more things at once on the internet, with less lag or jitter. You can be on an online game, whilst streaming the radio, and in the background sending emails, all at the same time! You can have more internet hungry applications running at the same time, and the speed of your activities (providing you have adequate processing power) should be the same as if you just had one activity going on.

Improved Internet Call Quality

Faster internet speeds will allow for smother internet calling, with less lag and better quality. You will be able to chat with friend across the globe and stage a conversation as though they were there in the room with you. VoIP will be significantly improved, as faster speeds meant that the media you are sending out is of higher quality, and the stream you are receiving is better too.

Such improvements could significantly benefit businesses, as VoIP can significantly lower the cost of holding meetings with fellow colleges based in different locations, thanks to better, more affordable online conference calling.

Furthermore, improvements in internet call quality can make remote working more viable, meaning that employees can spend more time working and less time commuting, thanks to them being connected all the time. This can save time, money and office space, as more employees are able to work off-site.

Improvements in Healthcare and Education

As Rashed suggested in his recent article (Five changes in video conferencing for the next decade) improvements in internet calls could lead to an improvement in the provision of telemedicine, meaning that the best doctors can help patients from across the world.

There is also similar potential for education. The best lecturers and teachers will be able to educate far greater numbers of individuals from across the world, thanks to faster broadband speeds. Improvements in such technology could be very beneficial for those living in isolated communities.

Cloud Computing Becomes More Viable

Cloud computing has huge potential to cut costs, improve efficiency and improve data security, and superfast broadband makes it more viable! With faster broadband, more and bigger files can be stored in the cloud, meaning that files are less likely to be lost if one device fails, and are more likely to be accessible from any location.

Media Streaming

Streaming media from across the internet is smother, faster and more seamless with faster internet connections. You can watch online videos with less buffering, or even in high definition.

Furthermore, internet TV and other similar services become more viable than ever before. In the last quarter of 2011, Virgin Media reported profits of £48 million, which it is believed is mainly down to faster broadband speeds encouraging more users to user its TV and internet services.

Virgin Media's logo

More People Online

Every day thousands of new people around the world make the leap and go online. For every extra person on the internet demanding resources, the whole system slows down a little. However with superfast broadband, more people can be online with less of an effect on speeds. In large offices, more employees can be connected, with less of an effect on the speeds received. This is also true in households, more people can be downloading media, whilst it not affecting others on online games.

Your Speed

Superfast broadband is very important and is revolutionising the way we do business and live our lives. The question is, how fast is your broadband speed? Are you likely to benefit from the things I mentioned above, or do you need to think about switching provider? Try testing your broadband speed and comparing it to what you are paying for; could you be getting a better deal elsewhere?