StreamLive ProConnect PRISM Live Studio to StreamLive Pro
Add StreamLive Pro as a custom channel in PRISM Live Studio on the computer and send one stream to YouTube, Facebook Pages, Twitch and more: steps, settings and fixes.
PRISM Live Studio on Windows and Mac can stream to a server of your choice through a custom channel. Add a custom channel with the address and stream key from StreamLive Pro's Encoder card, and PRISM's program goes to StreamLive Pro, which sends it on to every channel you tick. PRISM stays your production app; StreamLive Pro adds per-network titles, YouTube and Facebook comments in one chat, and Shorts after the live.
The PRISM steps follow PRISM's own guide, PRISM Live Studio: Connecting Twitch via RTMP presets, which shows the custom channel window, checked 5 November 2026.
Before you start
- A paid StreamLive Pro plan. Receiving a stream from other software is on the paid plans; the 7-day trial streams from the browser studio. See the pricing page.
- Channels connected under Connections.
- PRISM Live Studio for the computer, signed in, with your scene ready.
Steps
- Open the Encoder card. In StreamLive Pro click New stream and choose Stream from software like OBS (RTMP / SRT). Open the RTMP tab and copy the address and the stream key.
- Add a channel in PRISM. Click the More button in the upper-left corner and choose Add channels.
- Choose Add Custom Channel. In the Add Channel window, choose Add Custom Channel instead of signing in to a service.
- Fill in the Custom Channel Information window. PRISM's URL field has a drop-down of preset services; for StreamLive Pro, paste the address from the Encoder card into URL instead of picking a preset. Paste the key into the stream key field. Give the channel a name you will recognise.
- Save. Click Save. The new channel's icon appears in the upper-left corner. If you also have other channels in PRISM, switch them off, so PRISM sends only to StreamLive Pro.
- Tick your channels in StreamLive Pro. Switch on the destinations in the Channels list and keep the Live stream page open and in front. It checks for your stream every ten seconds and sends it out when it arrives.
- Go live in PRISM. Within about ten to thirty seconds StreamLive Pro shows that the stream was detected.
- End from StreamLive Pro. Press Stop stream to end on every network, then stop the broadcast in PRISM.
Why send to StreamLive Pro instead of several PRISM channels
PRISM can stream to several channels itself, and each one is sent from your computer. With one channel to StreamLive Pro, your line carries one stream and our servers make the copies. You also get:
- a separate title, description and thumbnail per network (Give each network its own title in one live broadcast);
- YouTube and Facebook Page comments in the chat next to the player (Live chat from YouTube and Facebook in one panel);
- Shorts cut automatically after the broadcast (How to make Shorts from a live stream automatically).
How the two products compare, including where PRISM is the better choice, is in PRISM Live Studio alternative: what changes when you switch.
Settings that matter
Our ingest accepts H.264 video and AAC audio, 2 to 14 Mbps in total, with a keyframe every 2 to 10 seconds (Cloudflare Stream: Start a live stream, checked 5 November 2026). In PRISM's output settings, choose an H.264 encoder and a keyframe interval of 2 seconds if the option is there, and a bitrate your upload holds with room to spare.
What we have not checked
We have not tested a specific PRISM version against StreamLive Pro, and PRISM's guide does not say whether the custom channel accepts rtmps:// addresses, so this page uses the RTMP tab. Run a test with one unlisted YouTube channel ticked before an important show. The PRISM phone app is a separate product; this page covers the computer app.
What can go wrong
| Symptom | Fix |
|---|---|
| PRISM cannot connect | The URL is a preset instead of the StreamLive Pro address, or the key has a space. Paste both again |
| PRISM also went live on YouTube directly | A PRISM channel signed in to YouTube was still on. Switch it off and stream only to StreamLive Pro, or the live appears twice |
| PRISM is live, the networks are empty | The Live stream page was closed or in a background tab, or no channel was ticked. See OBS is streaming, but YouTube and Facebook show nothing |
| Detected, no picture | HEVC selected, or keyframes too far apart. See My encoder says it is streaming, but there is no picture |
| Fails only at one venue | Port 1935 is blocked there. Use another network |
Frequently asked questions
Can PRISM Live Studio stream to YouTube and Facebook at the same time through StreamLive Pro?
Yes. PRISM sends one stream to StreamLive Pro, and our servers send it to YouTube, your Facebook Page and every other channel you ticked.
Where do I add a custom RTMP server in PRISM?
Click More in the upper-left corner, choose Add channels, then Add Custom Channel, and paste the address and key.
Should I keep my other PRISM channels on?
No. If PRISM also streams to YouTube directly while StreamLive Pro sends to YouTube, the live appears twice. Send only to StreamLive Pro.
Can I use PRISM during the StreamLive Pro trial?
No. Streaming from other software is on the paid plans. The trial streams from the browser studio.
Which StreamLive Pro tab do I use for PRISM?
The RTMP tab. Paste its address into URL and the key into the stream key field.
Keep reading
Stream a game to Twitch, Kick and YouTube at once: OBS sends one stream, StreamLive Pro sends it on, plus chat, upload, platform rules and Shorts of your best moments.
What is an ingest server in live streaming?What is an ingest server: the address your encoder sends a live stream to, with a stream key. How ingest differs from playback, what it checks, and where to find yours.
Connect XSplit Broadcaster to StreamLive ProAdd a Custom RTMP output in XSplit Broadcaster with StreamLive Pro's address and key, and reach YouTube, Facebook Pages, Twitch and more from one stream: steps and fixes.
What is bitrate in live streaming?What is bitrate in live streaming: how many bits per second your stream uses, how it differs from resolution and upload speed, CBR or VBR, and how to pick one.
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