Things to Consider About Live Webcasting


You only get 1 picture at a live event, allow it to become count!

This article will explore several of the issues about doing a dwell webcast. Why you go live, bit rates, encoders, audiences, etc. You will have a far better understanding of a live webcast and get some alternatives to be able to hire an expensive CDN to get a 1-time event.

Why go real-time?

Why are you choosing to get a live event? Is it as you want interactivity? Is it any happening event that people must see live? Or can it be because your CEO said that he or she wants his quarterly deal to be available to the 45 employees live when he provides it with?

There are good reasons to offer any live event and there are negative reasons. Interactivity doesn’t actually require a live broadcast. It is possible to achieve most things like talk, and poll taking without no it being live.

Realize your audience

If this is a corporate and business event, then it’s most likely your attendees will be needed to attend. However, if this is a new concert or a sporting affair, be sure to know who your personal audience is and if the sun’s rays are able to attend. It sounds good to have a live concert for just a band on a Friday night, but consider this; are the visitors 15-25-year-olds? If that’s the case, they are probably going out on Monday night and won’t be in your house in front of their computers to enjoy a concert.

It would be easier to offer the concert as a pay-per-view or VOD event men and women can watch at their leisure.

Learn your encoding options

Initially choose whether this is to become Windows Media or Thumb event. What about Real Music (really, does anyone use RealMedia anymore? ). What about QuickTime? It’s gaining popularity because of the new iPhone 4, the issue is, that not too many providers help Darwin live streaming (yet, talk with them over the next 6th months).

Once you have a structure chosen, choose a régler. For Flash Live Coding you can use the Flash Stay Encoder from Adobe and also a high-end computer. This product will be OK for most consumer software. You are really limited to the particular horsepower of your computer. There is not any Mac version available therefore you must be on Windows equipment.

A better option for Display Live Encoding is the On2Flix Live encoding software or maybe the Sorenson Squeeze Live product or service. Both of these will offer higher quality movies and more flexibility.

You are nevertheless at the mercy of your computer. So I recommend you get the biggest, baddest pc you can when using a software reside encoder. Throw as much PROCESSOR, RAM, and Video Memory space at it as possible. Make use of a SATA or Firewire hard disk which runs at least in 7200RMP.

You also need to consider the way you connect your camera resource to the computer. Don’t use an easy off-the-shelf Web Digital camera or an analog in order to a USB device. These are FINE for home movies, but also for professional videos you should look at the Prosumer HD Video Camera or perhaps a high-end encoding capture card like the Osprey card.

For any hardware live encoding remedy, look at the Digital Rapids, Vbrick, or Newtek products. Digital Rapids has a cool new product the TouchStream Appliance. It’s a transportable standalone hardware encoder ideal for field productions

Windows Media/Silverlight encoding

Try the Home windows Media Encoder or with regard to Silverlight Encoding, try Ms Expression

For WM/Silverlight equipment encoding, choose a Vbrick, Electronic Rapids (in some cases), or Tricaster device.

View your bitrate

Everyone wants everything in HD these days. There exists a compelling reason to transmit at 1 . 5Mbps or more. But is it really needed? Consider this about bitrate: A lot of people can’t sustain much more when compared with about 1000Kbps for any time period. 3G wireless networks at the very best do about 700Kbps. You can find a full-screen good quality video with about 750Kbps.

If you want to go excessive bit rate, utilize a number of new technologies. Microsoft Adobe both have bandwidth discovery (variable bit rates). Nonetheless, Silverlight now offers ‘Microsoft’ Smooth Stream which will greatly change the bit rate on the video to adjust for situations at the player level. Brick FMS 3. 5 likewise uses dynamic live streaming which often does about the same thing. The to know about broadcasting an excessive bit rate is to be sure to have enough upload bandwidth for your venue.

Test before you go reside

You need to be at your venue each day or 2 in advance. If you work with a CDN, see if they provide some sort of live event checking service. Connect to your posting servers and make sure you can maintain the bandwidth required for the big event. If you have the option of multiple consume points, run ‘trace routes’ to the different servers and find out which one is really closest to a person. The one in the city of your own it doesn’t necessarily mean it can closest

Talk to the location IT coordinator, and see if you will get dedicated bandwidth. My encounter in conference centres could be that the shared wireless Internet offered is generally sub-par. If you can’t get devoted bandwidth, ask them what their own usage is like during the time of your own personal event. If it’s normally major, then you may need to lower your tad rate to accommodate for the weak connection.

Fire up your régler and get people on distinct networks in different geographies to observe your test stream. You should only get 1 shot around this, and there are about a million transferring parts in this that can bust.

How do I get my indication out there so people are able to see it?

You have a lot of options. The first to consider is the length of my audience? This will eventually dictate how much bandwidth as well as resources you will need. Use this formula:

(Bit rate) X (seconds) *



Get that number and separate it by 1000, this will provide you with your number in MB. Then multiple that through the number of viewers and you will understand how much bandwidth you use

*average number of seconds a person will certainly watch, not the length of the expensive vacation event


500Kbps X 1850 (30 min)



= 112, 500 subsequently divide by 1000 = 112. 5MB. That’s the amount of bandwidth 1 user can consume watching for a half-hour.

If you will have over 60 or so viewers, it makes sense to see dedicated servers or employ a CDN. If you plan to have over 1000 viewers, then a CDN is almost a must.

But for individuals events with just a number of viewers look into free solutions like

Mogulus and Ustream. Or look at low-cost choices like Amazon cloud computing with Wowza servers. Also, take a look at Influxis which can host your own FMS server for you.

A single-time live event from the Tier 1 CDN such as Limelight or Akamai will most likely cost you about $5000 or more, or they will ask a person to sign an annual contract someplace in the neighbourhood of $12, 000 or more.

That’s a cover!

There are lots of options out there with regard to doing live webcasts. Take a look at WebEx, iStreamPlanet, On24, Multicast, and more. Ask the salesperson how many live events they have already hosted. If their answer is basically “so many I can’t count” then consider moving on.

Thanks a lot,

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