TRVT aimed to implement advanced, remotely managed and monitored PAVA (Public Address and Voice Alarm) solutions, integrating automatic sound level control and seamless SNMP-based integration with their control platform. Ambient System delivered a comprehensive solution under a long-term framework agreement, including EN54-certified, climate-resistant loudspeakers (customized for the harsh Swedish climate and platform environments), intelligent amplifier modules for platform displays, and the smartVES PAVA system. Key features included intelligent sound level control to optimize message clarity for passengers and reduce noise for residents, self-testing SPL/STI using smartVES sensors for remote diagnostics, and the ICO MAM amplifier module supporting platform displays and clocks. The project milestones spanned from technical proposal development and acoustic simulations in 2023, through factory acceptance testing and initial orders in 2024, to successful client acceptance in 2025. An example installation at Linköping railway station included adaptive noise sensing microphones, a control unit, an audio processor, 129 loudspeakers, and 24 speaker lines, all focused on calibration, reporting, and noise minimization.