Home Sound Cards LX-MADI Multichannel Sound Card
  • Overview
  • Specifications

LX-MADI Multichannel Sound Card

Key Workflow: Guarantee ultra-low latency and perfect signal integrity in mission critical applications for broadcast automation and on-air, video and post production

The LX-MADI sound card performs ultra-stable 24/7 record/play operations with sub-millisecond round trip latency on its PCI Express interface. Its hardware-based architecture maintains performance regardless of the computational load of other applications running on the host system. This guarantees continuous quality of service in all demanding broadcast automation and on-air, video and post production workflows.

At a glance

The LX-MADI sound card delivers ultra-low latency and high stability for mission critical, 24/7 applications.

  • Record/play 64 optical MADI (AES10) channels with sub-millisecond round trip latency on PCI Express interface
  • Provides real time Multichannel audio digital interface with external equipments to broadcast automation and on-air, video and post production applications
  • Controls MADI channels from appropriate ALSA and WASAPI / DirectSound and ASIO drivers in Linux and Windows environments

Key features

  • MADI interface: 64 in / 64 outputs MADI (AES10) channels on Optical multimode interface
  • Sub-millisecond round trip latency
  • WordClock input and output
  • PCI Express interface
  • Drivers: ASIO, WASAPI / DirectSound, ALSA
  • For Windows 10, 8 and 7 32/64bits, Windows server 2003/2008, Linux
  • Designed for 24/7 mission critical operations
  • High reliability with inbuilt FPGA technology

Configuration

  • Bus/Format: PCI Express(R) x1 (compatible x1, x4, x8, x16 slots)
  • Size: 111.15 mm x 167.65 mm x 20 mm
  • Power requirements (+3.3V/+12V): 0.4 A / 0.12 A
  • Operating: temp / humidity (non-condensing): 0°C / +50°C • 5% / 90%
  • Storage: temp / humidity (non-condensing): -5°C / +70°C • 0% / 95%

Inputs and Outputs

  • Connectors
    – 1 optical connector for MADI In/Out
    – 1 BNC for Word Clock In / Out
  • MADI (Multichannels Audio Digital Interface) inputs and outputs: 64 /64 Inputs / Outputs (mono) or 56 /56 Inputs / Outputs at 48 kHz sampling frequency and 32 /32 Inputs / Outputs at 96 kHz sampling frequency
  • Word Clock input or output:
    – 
    BNC connector, Input or Output position selectable by software.
    – Input : TTL , impedance selectable by jumper (75 Ohms / HighZ).
    – Output : Max 5 Vpp, 75 Ohms output impedance
  • Clock sources
    – Internal or Word Clock or MADI input
    – Local clock precision : better than 10 ppm
  • Sampling frequencies
    – From local clock: 44.1 kHz 48 kHz, 96 kHz
    – From Word Clock: 44.1 kHz, 48 kHz, 96 kHz
    – From MADI: 44.1 kHz, 48 kHz, 96 kHz

Environment

  • Latency and PC interface: Round trip time down to 0.8 ms
  • Supported operating systems: Windows 10, 8 and 7 32/64 bits, Windows server 2003/2008, Linux
  • Supported drivers: ASIO, WASAPI / low latency WDM DirectSound, ALSA

Benefits

  • Increase Production and Automation density: 64 I/O low latency channels driven by high precision clock synchronization
  • Secure content delivery: FPGA design and ultra-stable Linux and Windows drivers for 365/24 operation
  • True Real-time audio: Ultra-low latency (down to 1 ms round trip with 64/64 In/output streams)