Why this journey matters
From the original prototype to today’s Simplicity AI, Quartet’s work has been guided by one purpose: helping people gain practical control over everyday life.
Quartet’s history matters because it reflects decades of designing around real needs, not simply adapting generic technology. Its products have evolved through direct experience, focused development, and lessons learned from the people who use them.
JOI
Built for a real person with a real need, this handmade system became the foundation for Quartet’s environmental control technology.
Decades before voice assistants became common in the home, Quartet introduced the Simplicity Series 5 — a purpose-built environmental control unit that gave people a practical way to control everyday functions by voice, whether from bed, a wheelchair, or elsewhere in the home.
The Series 7 gave people who could not rely on voice another way to control their environment, using switch input with spoken prompts to support navigation and choices.
Created in response to a VA request for a Veteran who could use a switch but could not communicate verbally, this ECU with a Morse Code PC interface translated switch input into text on a computer.
Everyone has a voice, even if they cannot verbalize.
The AIO combined voice and switch access in one environmental control unit, giving users another way to control their environment when voice became tiring, difficult, or unavailable.
As Windows 95 brought mouse-driven computing into the mainstream, the VMK™ — Voice Mouse/Keyboard — enabled users to control both the mouse and keyboard with their voices, without requiring special software on the computer.
After decades of voice-controlled ECU development, QVR introduced a more advanced recognition engine with adjustable voice levels for whisper, soft, normal, and loud speech — making voice access more adaptable to each user.
The Quartet Visual Switch gave users another way to operate a Switch ECU by using eye-gaze control to select visual buttons on a computer. Configurable button sizes and visual feedback helped make switch control more accessible for people who could not rely on voice or a physical switch.
Simplicity AI carries Quartet’s decades of environmental control work into a modern system, combining multiple access methods, personalized menus, favorite routines, visual setup tools, and support for real-world daily use.
Next Chapter:
The Simplicity AI Bed Controller introduced QLink™, Quartet’s encrypted wireless messaging service, enabling Simplicity AI to control bed functions without a cable connection or reliance on the customer’s home network.
Purpose-built, not pieced together
Quartet’s environmental control systems have been shaped by decades of direct product development, real user needs, and practical field experience.
This is different from building a system around generic computers, third-party software, and off-the-shelf devices. Quartet designs environmental control technology around the people who depend on it every day.
Today and the next chapter
Simplicity AI carries Quartet’s work forward with modern access methods, personalized control, visual setup tools, and support for everyday routines. The technology has changed over the decades, but the purpose has remained the same: helping people gain practical control over everyday life.
Simplicity AI is not where Quartet’s journey ends — it is where the next chapter continues.