Help people get to where they need to go.

So everyone can enjoy the freedom of travel.


Revitalize confidence in transit. Remove the issues that slow people down — like missed fare top-ups, navigating crowded stations, and missed stops. Use tailored audio alerts, notifications, and voice assistance to guide and support people in where they want to go.


of disabilities are invisible.1

Have you asked?

Talk to us about how to ask your Accessibility Advisory Committee to identify accessibility barriers and where to use assistive sound design to remove them.
We'll guide the process so you can hear what people have to say.

Information when people need it.
How they need it.

Sensory cues like in-app sounds and voice provide critical information for people with cognitive, sensory, sight, and hearing disabilities.

CX designers.

Craft a seamless user journey by anticipating and exceeding expectations. Use audio alerts, notifications, and feedback to guide disabled users through your apps, stations, and in transit. Transform mobility from usable to joy to use.

Accessibility coordinators.

Tailor voice and sound design to cognitive, sensory, and motor preferences. Identify roadblocks and where assistive sound design will remove them. Then, use these insights to inform design across your digital interfaces, physical spaces, and transport modes.

Journey planning

Navigating your stations and terminals


Start with an assessment.

App & website accessibility check.

Quickly validate your concerns about accessibility barriers with our affordable service to decide your next step.

From $3,500

Priority area test & diagnosis.

Target a specific area that you need to address now. Move forward quickly with practical recommendations.

From $9,500

Comprehensive user journey assessment.

Collaborating with your commuters, we identify barriers and how to remove them throughout your user journey.

Assistive sound design.

Guide, reassure, excite, calm, celebrate. Get attention— Fast.

Audio alerts, reminders and notifications are powerful shortcuts to the brain. Transcending language, they guide people with disabilities through your products and services.

Boost engagement with personalization.
Connect users to your service ecosystem through personalized updates, reminders, and notifications tailored to their cognitive and sensory preferences. Enable all travelers to confidently navigate your digital and physical services.
Safe, helpful, and supportive.
Provide reassurance and peace of mind. From a welcoming “you’re logged in” tone on your apps to the reassuring chime of a successful fare top-up and recognizable notifications for service changes and upcoming stops.
ADA & WCAG compliance.
Instill trust in your systems from the start. Ensure assistive devices like screen readers can read your PDFs, websites, and apps. So, people have the information they need to make decisions before and during their journey.


Start small to have the biggest impact.

To kickstart your accessibility improvements focus on one area in one station that will have the biggest impact.

Understand how your systems, environments, technologies, and behavior interact and affect each other. Uncover the barriers and opportunities these relationships create.

Gain valuable insights and test solutions to build momentum for your accessibility initiatives before scaling up — all without being overwhelmed by the scale of your entire network.

We help you —

1. Pinpoint your friction points and where to start.

We collaborate with real users on their journey to identify barriers so you can decide where you'll have the greatest impact.

2. Solve the problem.

Isolate the parts of your systems, environment, and technologies causing the barriers and fix them with evidence-based testing and user feedback.

3. Build sound management guidelines.

We create guidelines for you to ensure consistent and correct implementation of your assistive audio assets across all your platforms and future services.

Assistive sound design toolkit.

Keeping everyone informed about your innovations.

People with visual and hearing disabilities often miss crucial details in videos, limiting their understanding of your products and services. Audio content can also distress people with autism and sensory sensitivities.
Guide: Enrich your videos with audio descriptions to ensure everyone fully understands your communication.

Alert: Trigger warnings create a safe and supportive environment for people with autism and sensitivity to specific sounds.

Signing up for alerts and fare payments.

66% of visitors abandon signup and onboarding due to barriers like confusing instructions and interfaces.

Reduce friction and increase completion rates. Guide people with visual, cognitive, and mobility challenges through these critical steps, ensuring a seamless first experience from understanding terms and conditions to setting up secure login and accounts.
Guide: Inform people how many steps are involved in each task, to progress through each step effortlessly.

Guide: Tell people password requirements to reduce errors and speed up sign-up.

Alert: Prompt users immediately upon data entry errors to prevent confusion that causes repeated attempts.


Where is....?™

People depend on sonic spatial cues to orient themselves, locate landmarks, and stay safe, even when when using your navigation apps. Where is....? lets people find what they're looking for faster.

Enhance accessibility and control.

Different situations, like noisy surroundings, create challenges for app users. Personalized sound settings are crucial for those with sensory sensitivities.
Sensory sonic profiles: Accommodate sensory sensitivities and hearing capabilities.

Situational sonic profiles: Enable quick adjustment to surroundings.

Versatile control options: Intuitive features like voice commands, gestures, and disability-first interfaces for users with cognitive or mobility limitations.


Focus on people's goals, not their disability.
Ask, "What gets in their way?"


Map your customer journey.
Ask, "What helps you find your way?"


Test . Measure


Sonic experience and information maps.

Eliminate the nasty surprises and stress that lock people out of your spaces.

Help people sensitive to sounds prepare for noisy environments by experiencing audio maps of your stations, terminals and mobility hubs.

Case studies


National Australia Bank . Managing sound . Unifying the brand journey.


Designing digital & physical spaces that work for disabled people.


Get in touch to discover how assistive sound design can help you better serve disabled customers.
Marcel de Bie
Marcel de Bie
+1 310 270 8012

"In a world not designed by them, Marcel creates platforms with people with disabilities so they can design their own experiences."

Carmen Madisson . Boilover Inclusive Performance Ensemble. Sunbury Cobaw Community Health.

"Not only did Marcel break down what was working and not working in terms of interfaces and the responsiveness and character of sounds, he explored how they hindered or helped them achieve their goals."

Wendy O'Neil . Art Centre, Melbourne.

"Marcel was indispensable to us and the success of the project, with that rare combination of practical know-how, a hard-work ethic, and inspired creative vision.''

Brian Rupp . Brand Timbre & Rumblefish. [USA]