Help & answers
Everything you need before, during, and after a live event.
Support
support@scaption.app. Reply within one business day. Live-event emergencies during a pilot use the direct line in your onboarding pack.
Sales & PRO
sales@scaption.app. Enterprise, multi-seat, and PRO inquiries, plus live walkthroughs.
Setting up OBS, vMix, Zoom, ATEM…?
Step-by-step setup guides, with pictures. See all the guides
Frequently asked questions
What exactly comes out of SCAPTION?
How fast are the captions?
Which languages are supported?
Why OpenAI for translation, and what if it’s down?
Does the venue feed depend on the internet?
What happens if I hit a plan limit mid-event?
My NDI source isn’t showing up in vMix. Why?
ip:port so you can add it manually in vMix / TriCaster.What does the free trial include?
Does SCAPTION work with my ASIO interface?
System requirements
| Operating system | Windows 10 or Windows 11, 64-bit, or macOS on Apple Silicon (M1 or later). Not available for Intel Macs or Linux. |
|---|---|
| Processor | Quad-core Intel Core i5 / AMD Ryzen 5 or better, or any Apple Silicon Mac. Real-time audio + NDI encode benefit from more cores. |
| Memory | 8 GB RAM minimum, 16 GB recommended for large shows and multi-output. |
| Graphics | Any GPU with current drivers. Captions render 1080p; no discrete GPU required. |
| Network | Audio streams continuously to SCAPTION’s relay while on air, about 0.8 Mbps per microphone (linear PCM, 48 kHz). One microphone needs ≥ 3 Mbps of stable upload; Advanced mode with 4 microphones needs ≥ 10 Mbps. Download stays under 1 Mbps (captions and translations are plain text). NDI/HDMI video output stays on the local network and does not use internet bandwidth. Wired Ethernet is strongly recommended over venue Wi-Fi. Jitter and packet loss hurt more than raw speed. |
| NDI | NDI 6 runtime is bundled in the SCAPTION installer. Nothing to install by hand. Output goes over the LAN into vMix / TriCaster / OBS. If a source doesn’t appear, add it by name + ip:port. |
| Audio input | Any WDM audio device: USB interface, Dante Virtual Soundcard (WDM mode), VB-Audio Cable, or a hardware capture card. ASIO drivers are read directly too, up to four discrete channels from one console. Advanced mode needs either an ASIO driver with a channel per microphone, or one distinct WDM device per microphone. On macOS: any Core Audio input (a microphone, an interface, or the computer’s own audio) up to four channels. |
| Output | Alpha NDI over the LAN into vMix / TriCaster / OBS, or chroma-key HDMI to a switcher when there’s no NDI gear. A third output needs nothing from this machine: a browser URL that draws the same two caption lines over the same key colour, opened on any computer. |
Output overNDI®.NDI® is a registered trademark of Vizrt NDI AB.
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