SERENALIN.DESIGN

04 · Ongoing exploration

Exploring Voice AI for Restaurant Operations

An early-stage exploration into where voice AI may create value in restaurant workflows—and what physical infrastructure would be needed to make those ideas testable.

Voice AI ordering concept in a restaurant environment
Role
Product Design / Hardware UX
Focus
0→1 Exploration · Voice AI · Physical–Digital Systems
Status
Ongoing Exploration

The open question

Where does voice actually make restaurant work better?

Rather than starting with a predetermined use case, the team is exploring where voice could create meaningful utility—and where it may not.

01

Potential User Value

  • Hands-busy interaction
  • Faster access to information or actions
  • Reduced screen navigation
02

Real-World Constraints

  • Restaurant noise and multiple speakers
  • Divided attention and movement
  • Latency and adoption behavior
03

Technical Feasibility

  • Microphone pickup and placement
  • Hardware architecture
  • System capability

Making the idea testable

Turning an abstract AI opportunity into something we could test.

  1. 01

    Understand the environment

    Restaurant context, noise, working distance, and movement.

  2. 02

    Define physical requirements

    Pickup, placement, coverage, and integration.

  3. 03

    Explore MVP architectures

    The minimum physical system needed to test voice realistically.

Hardware exploration

Exploring the physical system behind the experience

I explored multiple hardware architectures to understand what could support realistic voice testing without prematurely committing to a final product direction.

EXPLORATION ARCHITECTURE
Restaurant
environmentnoise · distance · movementPrototype
hardwarepickup · processing · feedbackVoice
service
physical state ↔ interaction state
A test architecture for examining the relationship between environment, physical infrastructure, and the voice layer—without implying a final product direction.
PLACEMENT
PASSCOUNTERPREP?
Where can a prototype hear clearly without adding operational burden?
Placement is evaluated against noise, working distance, movement, and existing restaurant hardware.
INTEGRATION
01Standalone test module02Mounted to an existing device03Distributed pickup + feedback
Compare integration paths before selecting a form factor.
Early mounting directions keep the prototype flexible while the team learns what the environment requires.
MODULAR ARCHITECTURE
Pickup→Compute→Feedback
coveragelatencyvisual / audible
Separate the system into testable layers.
A modular structure makes it possible to learn about one constraint without prematurely locking the entire hardware system.

Early interaction considerations

Connecting the physical prototype to the interaction experience

Voice interaction behavior is being explored in parallel across the broader team. My contribution focuses on hardware UX, physical-system requirements, and connecting those constraints to early interaction considerations.

User speaks→System listens→System interprets→System responds
  • How does the user know the system is listening?
  • When should feedback be visual versus audible?
  • What happens when environmental noise makes voice unreliable?
  • How should hardware state and digital UX remain synchronized?

Ongoing exploration

What still needs to be proven

Utility

Which restaurant tasks are meaningfully better with voice?

Reliability

Can voice perform consistently in real restaurant environments?

Adoption

Will restaurant staff naturally incorporate voice into existing workflows?

Form factor

What physical experience enables testing without creating additional operational burden?

This video includes voice. Sound is muted by default—use the speaker control to turn it on. One of the design directions. Early prototype only.
At this stage, success isn’t a polished solution. It’s learning whether the opportunity deserves to become one.

Next project

Designing a Better Payment Experience

Improving payment confidence through clearer interaction feedback, streamlined device setup, and cohesive motion—helping guests complete transactions successfully on the first attempt.

Toast Flex payment hardware in a full-service restaurant