Facetime live cams
Below are a few streaming terms that you might not be familiar with.
We’ve defined them so you can reference them as you go on: If you assume that your viewers are not sitting in the seats at your live event, then latency may actually not be that important.
Whether two seconds or two minutes, if a viewer is not present in person, then they’ll be blissfully unaware that there is any latency at all. For example, live attendees may be tweeting updates, or you may be providing live score and stat updates for a sporting event.
If your latency is too long, viewers may read about something before they see and hear it happen, which is not ideal.
Minimum: typically no less than 100 milliseconds Maximum: several seconds Your viewers will be watching from many kinds of devices (PCs, Macs, tablets, phones, TVs, and set-top boxes) over many types of networks (LAN/wifi, 4G LTE, 3G, etc.).
In order to provide a quality viewing experience across a range of devices, a good streaming provider should provide ABR.
This time boundary provides the latency of the jitter buffer.
Minimum: about 33 milliseconds Maximum: hundreds of milliseconds When encoding in software (on a PC or Mac) or using a hardware encoder (Box Caster, Teradek, etc.), it takes time to convert the "raw" image signal into a compressed format suitable for transmission across the Internet.
This latency can range from extremely low (thousandths of a second) to values closer to the duration of a video frame.
Changing encoding parameters can lower this value at the expense of encoded video quality.
If low latency is more important, you should choose a technology that provides it, at the cost of potentially inhibiting future viewership growth.
If broad viewership is more important, you should choose a technology that supports broad scalability at the expense of higher latency. Let’s look at how a typical live streaming system works and examine how latency is introduced at each step: Whether you’re using a single camera or a sophisticated video mixing system, taking a live image and turning it into digital signals takes some time.Minimum: about 1 millisecond Maximum: about 40-50 milliseconds The encoded video takes time to transmit over the Internet to a VDS.