Conference and Corporate AV Sound: A Practical Guide

Speech intelligibility is the single most critical metric in corporate AV. Unlike a concert, where musical energy and emotion take precedence, corporate events demand that every syllable is clear. The standard measure is the Speech Transmission Index (STI), with values above 0.6 considered good and above 0.8 excellent. Achieving high STI requires careful system design: direct-to-reverberant ratio, minimal comb filtering, and consistent coverage.

Reverberation is the enemy of intelligibility. In rooms with hard surfaces, such as glass-walled conference rooms or marble-floored lobbies, reflections smear speech. Distributed systems—multiple smaller loudspeakers placed close to listeners—reduce the need for high SPL and minimize reverberant buildup. SSOUNDS engineers often specify point-source cabinets with controlled directivity to keep sound on the audience, not on the walls.

Equalization also plays a role. Human speech occupies roughly 300 Hz to 4 kHz, with consonant clarity (especially fricatives like 's' and 'f') in the 2–4 kHz range. A well-tuned system will avoid boosting low frequencies that add muddiness and instead focus on a smooth, natural midrange. SSOUNDS DSP presets include speech-optimized curves that can be selected on the fly.

In large conference halls or multi-purpose rooms, the choice between a centralized line array and a distributed system depends on ceiling height, room shape, and flexibility needs. A centralized array—such as a compact line array flown above the stage—works well when the audience area is wide and deep, but it often creates uneven coverage in rooms with balconies or irregular seating.

Distributed systems use multiple loudspeakers placed throughout the ceiling or on walls, each covering a small zone. This approach excels in rooms with low ceilings (under 4 meters) or where the audience is spread across multiple seating areas. It also allows for zoned volume control, which is useful for simultaneous breakout sessions or when different parts of the room require different levels.

SSOUNDS offers both approaches. For distributed systems, our compact point-source loudspeakers with 70V/100V line transformers simplify wiring and allow many speakers to run from a single amplifier. For larger spaces, our line array systems provide the throw and pattern control needed for a single, coherent wavefront. The key is to model the room acoustics and coverage using AI-assisted simulation before installation.

Hybrid events have become the norm, and they present unique audio challenges. The in-room sound system must not only cover the physical audience but also deliver a clean feed to the remote participants via the conferencing platform. Microphone pickup is critical: ceiling-mounted beamforming microphones or gooseneck mics on tables must capture voices without picking up the loudspeakers, causing echo.

A common solution is to use a dedicated mix-minus feed for the remote codec. The local sound system receives the program audio (presenter mic, video playback), while the remote feed gets only the microphones—minus the loudspeaker output. This prevents feedback and echo for remote listeners. SSOUNDS DSP systems include built-in mix-minus routing and can integrate with Dante or AES67 networks for seamless connection to codecs like Zoom Rooms or Teams.

Latency is another concern. Any delay between the audio heard in the room and the audio sent to remote participants can cause confusion. Keeping the signal chain digital and minimizing processing latency is essential. SSOUNDS amplifiers and processors are designed for low-latency operation, typically under 1 millisecond, ensuring that the remote experience matches the in-room timing.

A successful corporate AV system starts with a thorough needs assessment. How many microphones? What is the room's reverberation time? Will the room be used for presentations, panel discussions, or video conferencing? These questions drive the loudspeaker selection, placement, and zoning.

For boardrooms and small meeting rooms, a simple 2.1 system (two satellite speakers and a subwoofer) can provide excellent speech clarity. For larger conference halls, a distributed system with 8–12 ceiling speakers or a line array of 4–6 boxes per side may be needed. SSOUNDS engineers use acoustic modeling software to predict coverage and intelligibility before a single cable is run.

Integration with control systems (Crestron, Extron, AMX) is standard. SSOUNDS amplifiers and processors support IP control, allowing volume, mute, and preset recall from a touch panel. For events requiring multiple configurations (e.g., lecture mode vs. panel mode), presets can recall different EQ, delay, and routing settings instantly.

Corporate events cannot afford audio failures. A dropped signal during a CEO's keynote or a feedback loop during a board meeting is unacceptable. SSOUNDS systems are built with redundant power supplies, network-based monitoring, and failover capabilities. Our amplifiers feature advanced protection circuits that prevent thermal shutdown or overcurrent, even during long sessions.

Global support is a priority. With offices in the UK, Nigeria, and the US, SSOUNDS provides local technical support and spare parts availability. For installations in Africa, we offer on-site commissioning and training, ensuring that local engineers can maintain and operate the system to its full potential.