Now you can send your prompter feed over long-distance, low-latency cable. FluidPrompter's SDI Output gives studio professionals a signal path that's fast, reliable, and ready for production. Available on our desktop app with any Studio plan.
No credit card required
Real professionals shouldn't have to settle for workarounds — like HDMI-to-SDI converter boxes that take up space and carry all the disadvantages of a monitor output. With FluidPrompter, you get all the advantages of SDI you know and love:
FluidPrompter works with the professional SDI hardware you already trust. We support:
In studio environments, SDI lets you route your teleprompter feed through professional video switchers and routers — maintaining instant signal switching, low latency, and rock-solid reliability across long cable runs.
Connect your Blackmagic SDI output device to your video switcher or router of choice, such as:
FluidPrompter is compatible with whatever you decide your production demands. Because you shouldn't have to put up with annoying kinks in your setup.
No login or credit card required
You've spent years perfecting your setup. Every camera, controller, and cable is there for a reason. FluidPrompter doesn't believe in changing how you run the show.
That's why we don't sell you proprietary "OEM" hardware or lock you into using a specific vendor.
We love to collaborate with industry leaders who put comfort and control at the center of their design.
We offer built-in support for presidential teleprompters by PresenterTek and compatible brands. Our integration allows you to operate your rise-and-fall stand directly inside FluidPrompter. Plus, our app gives you access to more memory positions.
Integration available on the Studio plan.
We love partnering with brands our customers love, and XKeys is no exception. The XKeys Jog & Shuttle is a popular choice for professionals operating a teleprompter from a distance.
Integration available on the Studio plan.
Talk with your hands while you present. AirTurn foot pedals connect with FluidPrompter for smooth, wireless cue control. Ideal for presenters who need their hands free.
Integration available on Solo Creator and Studio plans.
From control room to camera, run prompter feeds across the floor with peace of mind and zero delay.
From booth to stage, an SDI prompter feed helps production teams stay in control and presenters on cue.
Keep lectures, livestreams, and ceremonies running smoothly across large halls and auditoriums.
Hardwired, interference-free prompting for press briefings, chambers, and public addresses.
Send flawless prompter feeds from the back of the sanctuary or AV booth to the pulpit or platform.
Bring broadcast-grade reliability to leadership keynotes, investor updates, and conference events.
Send prompter feeds from video village to on-set monitors or cameras, keeping directors, crew, and talent aligned on every take.
Keep in-room and remote presenters aligned. Rely on SDI for the stage feed and keep every screen and location in step — with FluidPrompter's multi-prompter sync.
Mirror real broadcast conditions for rehearsals and speaker training — helping presenters build confidence before going live.
HDMI has its place in some scenarios, and the port right on your laptop makes it a convenient option. But HDMI comes with a risk. Unwanted notifications, pop-ups, and apps can video-bomb your prompter. In situations where you simply can’t risk having stray screen elements moon your audience, SDI provides a dedicated, isolated video path. Plus, you don’t have to deal with latency.
No credit card required
SDI output is not supported on mobile devices (like iPhone, iPad, Android) or in a web browser. To use FluidPrompter's SDI output, the desktop app is where it's at.
SDI (Serial Digital Interface) is a professional video standard. It sends a dedicated video signal — separate from your regular computer display — over a coaxial cable.
In a teleprompting setup, this matters because it creates a clean, latency-free feed without the risk of pop-ups, notifications, or software windows interrupting the video feed. SDI also supports long cable runs — around 300 feet without special boosters or repeaters — making it ideal for studios, auditoriums, and broadcast environments where your teleprompter isn't sitting right next to your computer.
HDMI was designed for home entertainment — it's great for connecting a TV to a game console or streaming box, but not for live production. Every time you plug in an HDMI cable, the devices negotiate compatibility — resolution, frame rate, and color depth — which adds a brief delay and potential instability. It also limits you to short cable runs (typically under 10 feet, maybe 20 to 25 with heavy-duty cables). That's fine for a small at-home setup, but not for a studio, auditorium, or live event where cables often span hundreds of feet.
Another drawback is that HDMI acts as a second computer monitor, so it can show desktop notifications, pop-ups, or even the wrong window if someone alt-tabs mid-production. That's why professionals rely on dedicated SDI output devices — purpose-built for clean, reliable, and distraction-free video feeds.
You can use a wide range of SDI hardware, including Blackmagic Design's DeckLink, UltraStudio 3G Monitor, UltraStudio Mini, and UltraStudio 4K Mini.
Yes. When you use SDI output hardware like DeckLink or UltraStudio, you can route your teleprompter feed directly into an SDI video switcher (such as Blackmagic ATEM) or a video router. This allows your prompter signal to be distributed to multiple displays or camera-mounted units, all perfectly synchronized, with no signal degradation or latency issues.
Yes. FluidPrompter's SDI output works with MacOS, Windows, and Linux, via our desktop teleprompter app, which you can download for free.
Network Device Interface (NDI) is a computer network-based video protocol. While FluidPrompter does not currently support NDI, if enough customers request this, we will happily put it on our roadmap.
If you're new to NDI, please note, NDI can incur some latency and requires a higher level of technical expertise with computer networking. It hasn't reached the level of maturity and reliability you've come to expect with SDI. But we will keep an eye on how the protocol evolves.
In addition to giving you access to SDI output, FluidPrompter's Studio Team plan allows you to connect 24 hardware remotes, synchronize 3+ prompters, and enjoy advanced hardware controls like XKeys. You also get priority email support (directly with us in North America) and prioritized feature requests. Compare plans.
FluidPrompter offers something better: a completely free Starter Plan you can use for as long as you like. The Starter Plan works for individual users with one prompter, keyboard/mouse controls, and scripts up to 600 words each.
When you're ready to add your own remotes/controllers or sync multiple prompters, simply upgrade to the Solo Creator plan. To enable SDI, upgrade to the Studio Team plan.
You can always contact us.
