You now have the option to create an Amazon Interactive Video Service (Amazon IVS) channel using the new Advanced-HD or Advanced-SD channel types, in addition to the original Basic or Standard channel types. Similar to Standard channels, Advanced channel types provide multiple qualities of output, allowing better playback quality across a range of devices and network conditions. Advanced channel types allow you to select “transcode presets” that are designed to match the multiple qualities of output to network performance and viewing devices. Advanced channel types allow available renditions to be capped at a maximum quality level: HD (720p) for Advanced-HD and SD (480p) for Advanced-SD.
Source:: Amazon AWS