Public address and voice alarm systems for railway and metro networks

At LDA we are experts in public address and voice evacuation systems for transport networks. That’s why we can help you create the most competitive solution that best suits your needs.

Crystal-clear sound in the rush hour

Metro and rail networks need sound installations able to distribute all kinds of warnings to crowds on the move. Delivering audio through different and independent channels is an essential requirement in installations that cover a lot of spaces with diverse dimensions and acoustic requirements.

It’s a given that people act faster when they hear a human voice telling them what to do or how to proceed, especially in case of emergency.

LDA Audio Tech’s public address and voice alarm systems certified according to EN 54 and EN 60849 provide intuitive user management and are easily integrated with existing third-party technologies at transport networks.

LDA Audio Tech offers:

• Redundant distributed system
• Integration with TETRA
• BMS and SCADA
• Acoustic studies to optimise intelligibility in stations, ensuring a proper reception even when trains are arriving.
• Automatic gain control, which allows you to automatically adjust the volume level in real time.