Streaming & CaptureGem Glossary

Definitions and explainers for technical terms found in our guides.

Auto-Record
A core CaptureGem feature that monitors a performer's status and automatically starts a recording session as soon as they go live.
Bitrate
The amount of data processed per second. Higher bitrates generally mean higher quality video but result in much larger file sizes on your disk.
Egress
The data that flows 'out' of a network or cloud provider, typically when you download a file from a storage bucket.
H.264 / AVC
The industry standard video compression format. It offers excellent compatibility across all players and devices while maintaining reasonable file sizes.
H.265 / HEVC
A more advanced compression format than H.264. It can provide similar quality at about half the bitrate, but requires significantly more processing power to encode and decode.
Hotkeys
Customizable keyboard shortcuts that allow you to start, stop, or manage recordings instantly without needing to use the application UI.
IOPS (Input/Output Operations Per Second)
A measurement of how many separate 'actions' a storage drive can perform every second.
NAS (Network Attached Storage)
A dedicated storage server connected to your local network, allowing multiple rigs to save files to a single location.
Proxy Mode
A capture method that routes your browser playback through a local proxy, allowing CaptureGem to detect and record streams that might otherwise be hidden from standard capture engines.
R2 (Cloudflare R2)
Cloud object storage that allows you to store massive amounts of data without paying for egress (download) fees.
RAID (Redundant Array of Independent Disks)
A way of combining multiple hard drives into a single unit for better speed or safety.
SSD (Solid State Drive)
High-speed storage that uses flash memory. Unlike traditional HDDs, SSDs have no moving parts.
System Audio
The digital audio output produced by your computer (e.g., from a browser or media player). CaptureGem can record this directly using a loopback device to ensure high-quality sound without external noise.
VR Metadata / Side-by-Side (SBS)
Specific formatting used for virtual reality video. Side-by-Side (SBS) is the most common format, where the left and right eye images are stored next to each other in the same frame.