We recently added a Low Latency option on our v3 Live Event API to bring latency down to 8-10 seconds e2e.
See the blog post here – https://azure.microsoft.com/en-us/blog/what-s-new-in-azure-media-services-video-processing/
We will begin work next on Ultra Low Latency ( and CMAF low latency) which is targeted at 2s range, but keep in mind tha latencies down at that level do not scale well to large audiences with high stability at the client side. Client side still needs to maintain about a 1 second buffer for the stream to stay stable.Joe commented
Adding another comment in support of a client need for low latency (sub 3 second) "live" streaming. Add in allowing WebRTC to push video to a channel and no storage usage..