The Polycom SoundStructure C8 is an 8-channel digital audio matrix mixer designed for professional conferencing and room audio management in small to medium-sized meeting spaces. It serves as the central processing hub, integrating microphones, line-level sources (like laptops), and loudspeakers into a cohesive, intelligible audio system. Its primary function is to manage audio for video conferencing, ensuring clear pickup of participants' voices and natural playback of far-end audio, while also handling local audio reinforcement and source switching for presentations.

The C8 utilizes sophisticated DSP (Digital Signal Processing) algorithms for critical tasks like acoustic echo cancellation (AEC), which removes echo caused by the microphone picking up sound from the room speakers, and automatic gain control (AGC) to maintain consistent levels. It provides a flexible signal matrix, allowing any input to be routed to any output with processing applied, enabling configurations for different room modes (e.g., presentation mode vs. discussion mode). Control is typically managed through simple wall plates, touch panels, or integrated control systems.

Housed in a compact, rack-mountable unit, the SoundStructure C8 is built for reliability in commercial installations. Its design focuses on ease of setup via configuration software, which allows integrators to tune the system for the specific room's acoustics. By combining essential conferencing audio processing with flexible mixing and routing, this device provides a streamlined, all-in-one audio solution for huddle rooms, conference rooms, and classrooms requiring high-quality, hassle-free communication.