LT-124
1920 x 1080, Progressive
p60/59.94/50/30/29.97/25/24/23.98 via 3G-SDI or HD-SDI
1920 x 1080, Interlaced
i60/59.94/50 via 3G-SDI or HD-SDI-
1280 x 720, Progressive
p60/59.94/50 via HD-SDI
720 x 576, Progressive
p25 via SD-SDI (PAL)
720 x 576, Interlaced
i50 via SD-SDI (PAL)
720 x 480, Progressive
p30/29.97 via SD-SDI (NTSC)
720 x 480, Interlaced
i59.94 via SD-SDI (NTSC)
Specifications and Features
Interface
Inputs:
2 x DVI-D inputs
Dual channel DVI-D video capture
Optional DVI output module via Flexible Flat Cable (FFC) for real-time video loop-through
Outputs:
Compatible with PCI Express x1 or greater
Real-time DVI loop-through (optional module)
Dimensions: 95mm x 115mm
Video Engine
- Hardware-based compression engine for minimal host CPU load
- Reconfigurable processing core that can be configured for multiple compression formats
- 1080p at 60 frames per second compression without using any host CPU resources
- Very low compression latency – outputs compressed video within only a few milliseconds after acquisition
- Full frame rate HD frame grabber for simultaneous uncompressed video capture
- Advanced hardware deinterlacing
- Video downscaling prior to compression
- Text overlay prior to compression
Compression & Performance
- Real-time H.264 video compression
- VC-1 video compression
- Single channel H.264 compression
- Dual channel H.264 compression
- Single channel VC-1 compression
- Dual channel VC-1 compression
- VBR (variable) and CBR (constant) bitrate control
- Bitrates from 64Kbit/s to 80Mbit/s depending on resolution, frame rate and quality
- 3D capture and mixing support
Signals
Concurrently captures up to 2 inputs of any of the following standards:
1920 x 1080, Progressive
- p60/59.94/50/30/29.97/25/24/23.98 via DVI-D
1920 x 1080, Interlaced
- i60/59.94/50 via DVI-D
1280 x 720, Progressive
- p60/59.94/50 via DVI-D
Standard Definition formats also supported
- 576p, 576i, 480p, 480i via DVI-D
Software
OS:
Windows: XP, Vista, 7, 10, 11 with DirectShow support
Linux support
Mac OS X support available
Video Compression:
H.264 video codec
VC-1/WMV-HD video codec
Field reconfigurable for future compression formats
Audio:
Synchronized stereo audio capture with incoming video
WMA audio codec
Software Support:
Cross-platform SDK for Windows, Linux and Mac OS X application development
DirectShow fully supported
Windows Media Services support
Silverlight support
Driver
ProductBrief
SDK
v1.4.0
1.89 MB | 12/28/2025
Changelog:
Superior Video & Audio
Enhanced playback with advanced deinterlacing and interlaced video support for smoother visuals.
MP3 and AAC audio encoding enabled for expanded compatibility and higher-quality recordings.
Smarter File Management
New auto-increment file naming and safer split recording to prevent overwriting and make file management seamless.
Expanded support for flexible recording sizes and new audio formats.
Firmware & Compatibility
Robust updates and optimizations for LT311 players and DDR memory, allowing more reliable multi-stream HD operation.
Latest Windows and Ubuntu 24.04 driver/support for optimal integration with modern systems.
Developer Experience
Refined Python and C++ SDKs with improved documentation, updated code examples, and API standardization.
Easier device programming through new JTAG & UART integration.
Performance & Stability
Faster, more accurate audio pipelines, increased system stability, and bug fixes to core services.
FFmpeg integration expanded for smoother encoding and muxing workflows.
v1.4.0
1.89 MB | 12/28/2025
