By default viewers can change resolution from the player UI, capped at the Max Stream Quality you set. Disable Show Resolution Settings to lock viewers to your defaults.
How much data the stream uses, in megabits per second. Higher = better quality, more bandwidth required.
Setting
Default
Range
What it does
Minimum
5 Mbps
1 – 100
Floor — the stream won’t drop below this even on poor networks.
Starting
10 Mbps
1 – 100
Initial bitrate at session start. Balance quality vs. quick connection.
Maximum
50 Mbps
1 – 100
Ceiling — extra bandwidth above this isn’t used.
The encoder adapts within this range based on the viewer’s network. Tighten the range for predictable quality; widen it for the broadest audience.
If your audience is mostly on weak connections, lower Maximum to ~15 Mbps so the encoder doesn’t over-spend bandwidth chasing quality the network can’t deliver.
QP controls compression intensity per frame, where lower = better quality, higher bandwidth. The valid range depends on the codec — AV1 supports a wider range than H.264.
Setting
Default
What it does
Min QP
21
Lower bound on compression. Sets the best quality the encoder will produce.
Max QP
75
Upper bound. Sets the worst quality before bandwidth gets cut further.
The encoder picks QP per frame within this range — high motion scenes drift toward Max QP, static scenes drift toward Min QP. For most projects the defaults are correct.
Don’t tune QP unless bitrate alone isn’t getting you the quality you want. Wrong values can produce worse streams than the defaults.
Pick the preset that matches your project, then fine-tune from there. AV1 is the recommended primary codec for every use case. Set a fallback for browsers or UE versions that don’t support AV1.
Use case
Primary / Fallback
Bitrate (min / start / max)
Min QP
Max QP
ArchViz / Digital Twin
AV1 / VP9
5 / 5 / 40 Mbps
21
75
Chatbot / Avatar
AV1 / H.264
5 / 5 / 30 Mbps
21
60
Games / Interactive
AV1 / H.264
5 / 5 / 75 Mbps
21
100
ArchViz and Digital Twin scenes benefit from VP9 as a fallback because it keeps detail well at constrained bandwidth. For chatbots and games, H.264 is the safer fallback for the broadest device reach.
