Whether it’s routine announcements, operational updates, or critical alerts, the system must perform consistently and meet regulatory standards were required.
At Anderson Acoustics, we provide specialist consultancy and acoustic assessment services to ensure your PAVA system achieves the highest levels of clarity and compliance. We don’t sell or install systems, we offer independent verification and advice, giving you confidence that your system works as intended.
To do so we also work with the architectural team to ensure a coordinated approach to develop internal acoustic conditions that enhance the performance of PAVA systems and is integrated with the overall design.
PAVA systems are required in many high-occupancy buildings under BS 5839-8, BS EN 50849 and EN54 standards. But performance isn’t just about meeting regulations, it’s about ensuring messages are understood in real-world conditions. Poor intelligibility can affect day-to-day operations and undermine confidence in your communication strategy, as well as posing a risk in emergency situations where PAVA systems are used to guide to safe escape routes.
Our role is to make sure your system achieves suitable Speech Transmission Index (STI) and complies with legislation where required. We ensure the system delivers messages that are clear, intelligible and inclusive, regardless of hearing ability or listener position, even in acoustically challenging environments.
We provide commisioning measurements to check client/operator/developer requirements
Planning a new system or upgrading an existing one? We offer unbiased advice to help you achieve compliance without unnecessary cost. We support sound system design using computer modelling to tailor equipment selection and ensure optimum coverage and sound quality.
Speech intelligibility is about how easily spoken words can be understood by listeners in a given environment. For PAVA systems, this is critical, not just for safety, but for effective communication in everyday use.
No effect on speech signal, perfect transmission of message.
Blurs speech signal (and increases background noise).
Reduces SNR, masks speech signal.
Compound detrimental effect on speech signals.
Background noise, reverberation, and poor speaker placement can distort messages.
In spaces like transport hubs, retail centres, or healthcare facilities, these challenges are common. Clear speech ensures announcements are understood quickly and accurately, improving both safety and operational efficiency.
Our reports provide actionable insights, highlighting areas where intelligibility falls below required thresholds and recommending practical improvements.
BS 5839-8 and EN54 require that voice alarm systems achieve specific intelligibility levels. We help you meet these standards by verifying performance in real-world conditions, not just theoretical design.
We use advanced acoustic modelling software to simulate:
This proactive approach helps designers and integrators deliver systems that meet compliance and performance targets from day one.
Contact us today for specialist testing and predictive modelling consultancy.
How can we add value to your project? Is there something we can help you with?
London: 0203 176 7909 Hove: 01273 696 887 Manchester: 07711 009 794 [email protected]
