User-Centered System Design: Creating Simplicity Without Sacrificing Power

At ISTP, we don't design systems for the sake of technology—we design them for people. Every system we deliver is built around user needs, not just technical specifications. This user-centered approach is what transforms a typical AV setup into a truly exceptional user experience.

A great example of this philosophy in action is our current project for a K-12 school located in BGC. Like most educational institutions, this school does not have a full-time audio technician. Instead, the AV system is used by teachers, students, and administrative staff—often with little to no training in audio engineering.

In such environments, traditional analog or digital mixers tend to create more problems than they solve:

• No sound due to misconfigured signal paths

• Loud feedback from improperly adjusted microphones

• Poor audio quality from incorrect EQ or gain settings

To address these challenges, ISTP often deploys Audio DSP (Digital Signal Processing) solutions. Unlike traditional mixers, DSP-based systems offer far greater flexibility in routing and processing, while allowing us to create a customized UX/UI that’s tailored to the users—not engineers.

In the case of this BGC school, we designed a user interface that allows teachers and students to operate the entire AV system with minimal instruction. Key system functions are presented in a simple, role-specific layout:

• A single “System On” button powers up all devices connected to the system

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  Home

  
  

• Preset modes such as Presentation, Assembly, or Sports can be selected based on activity

  

  Basic Tap

• The Basic Tap provide only essential inputs and outputs are displayed to avoid confusion

• Frequently used media sources have dedicated buttons for instant playback

For more advanced events, like school performances or community programs, an Advanced Tab provides access to extended channel controls, Auto Mic Mixing (AMM), EQ adjustments, and Ducker (DJ Mode) settings.

Advanced Tap

The Config Tab offers control over phantom power and AMM assignments, and enables zone control for four different areas within the combined gym and auditorium space.

Config Tap

Behind the scenes, the system is powerful and complex. But for the end user, it's seamless and intuitive.

At ISTP, we believe that technology should serve people—not the other way around. By focusing on user-centered system design, we ensure that our solutions are not only technically sound, but also a joy to use.