Showing posts with label OTT. Show all posts
Showing posts with label OTT. Show all posts

Jul 7, 2017

Streaming vs. Casting

These terms are used when discussing getting information from devices to your TV. Streaming is video-delivery sent over the internet to your computer or smart TV. It also may refer to Internet Protocol television (IPTV) also called just Internet TV. It includes Live TV, time shifted replays of live TV, and video on demand, such as movies. IPTV is delivered over a closed, proprietary network, accessed via a specific internet service provider. It is different from OTT (see below), which is open and delivered by providers over the top of any internet service.

Casting refers to the delivery of audio, video, or other media types from a users mobile device or PC to a Television or connected TV device. For mobile devices, such as smartphones, mirroring means casting uses your bandwidth allocation and costs money each time you use it. Video uses an extremely high amount of bandwidth and if you do not have unlimited use, your monthly phone bill could be enormous. Mirroring takes the display from a sender devices and replicates that on a receiving device. Casting without mirroring means that after you cast the video to your TV, you can use the phone as normal, because it hands off the original signal to the TV.

Bottom line, streaming goes directly to a device and casting sends a stream from one device to another.

OTA vs. OTT

The often used abbreviations can be confusing. Think of OTA (Over The Air) as using a TV antenna, where the signal comes into your antenna, literally over the air from satellite or huge broadcast antenna at a TV or radio station, vs. on a cable.
Think of  OTT (Over The Top) as directly accessing the internet via a physical cable (such as the one that goes into your modem/router LINK). WiFi also gets its input from that cable. It refers to audio, video, and other media transmitted via the Internet without cable or direct-broadcast satellite television systems controlling content. No TV tuner or receiver is necessary.

OTT devices which support streaming include Chromecast, Apple TV, Roku, and FireTV, etc. OTT services include video on demand services like YouTube, Netflix, Amazon, Hulu, Sky Go, BBC iPlayer, etc.

Bottom line, OTA uses the air outside of your house to receive signals and OTT uses cables outside of your house to receive signals. They both use cables from the wall to devices inside the house.