Designing a Visual AI Sound Recognition App for Sales Pitch Success

-
SirnAI

Helping SirnAI Launch an Impressive Product Demo on a Tight Deadline

Hamelin Tech needed a mobile application that would help sell their AI-powered sound recognition technology: SirnAI. We delivered a Flutter-based app that visualized sound events in a unique, intuitive interface, all within a fast-paced, R&D-driven process.

industries:
Communications
technologies:
Flutter
services:
Mobile Development
Download on the app storeDownload on Google Play

Hamelin Tech, led by Mark Reimer and Shy Ward, SirnAI centers around a microphone that uses AI to recognize and classify home sounds without relying on cameras, offering a privacy-focused alternative for home security and property monitoring. Mark and Shy developed a proprietary algorithm for analyzing environmental audio for alarming sounds, and they hold a patent for it. With the backend already developed, the client turned to us to design and build a striking frontend — one that not only looked impressive but clearly conveyed the product’s capabilities.

The mobile application was created to showcase this technology in a compelling and digestible format, supporting the company’s sales efforts with a clear, visually engaging presentation layer.

The goal was to build an interface that would showcase the capabilities of SirnAI’s proprietary AI algorithm for monitoring premises through sound. Our team had full ownership of the UX and UI, designing a dynamic gradient-based system to represent eight categories of recognized sounds over a 24-hour timeline. The result was an interface that clearly demonstrated the strengths of the underlying technology and supported SirnAI’s go-to-market efforts with a memorable, easy-to-grasp presentation layer.

“Nomtek turned our technology into a stunning, functional app. Their team was very communicative and brought real creative insight to the project. The app helped us pitch our app and tech by clealry demonstrating the value of sound recognition. We couldn’t have asked for a better partner.”

Shy Ward, Co-Founder at Hamelin Tech

“We had a tight timeline and high expectations — Nomtek delivered. The app became a key part of our sales pitch and helped us open important conversations with partners and investors. What impressed me most was how quickly they understood our goals and adapted the design to match exactly what we needed for live demos.”

Mark Reimer, Co-Founder at Hamelin Tech

Scope of Work

This project was executed under a tight timeline, with clear commercial goals and a high level of design autonomy. We worked closely with the client to ensure the app supported their sales narrative and was ready for showcase events.

Creative UX/UI design for high engagement

We were given freedom to explore and design a visual system that would spark interest during short trade show interactions. The gradient-based display of sound categories allowed users to immediately understand patterns and events, expressed visually without technical noise.

Mobile app development in Flutter

We built the application in Flutter, prioritizing iOS for the U.S. market while maintaining compatibility with Android if the product extended to Europe.

Sound data visualization R&D

Translating backend sound recognition into an intuitive UI required custom work with shaders, graphic rendering, and spatial plotting of data. The gradient algorithm was developed to support color-coded categorization across time.

Sales presentation support

Beyond app development, we worked with the client to craft a compelling product demo scenario and supported their pitch materials to maximize the visual and narrative impact of the app.

Continuous collaboration and quick iteration

Weekly progress demos, close feedback loops, and flexibility across time zones helped align the product with the client’s needs and kept development moving toward a timely release.

Scope of Work

This project was executed under a tight timeline, with clear commercial goals and a high level of design autonomy. We worked closely with the client to ensure the app supported their sales narrative and was ready for showcase events.

Creative UX/UI design for high engagement

We were given freedom to explore and design a visual system that would spark interest during short trade show interactions. The gradient-based display of sound categories allowed users to immediately understand patterns and events, expressed visually without technical noise.

Mobile app development in Flutter

We built the application in Flutter, prioritizing iOS for the U.S. market while maintaining compatibility with Android if the product extended to Europe.

Sound data visualization R&D

Translating backend sound recognition into an intuitive UI required custom work with shaders, graphic rendering, and spatial plotting of data. The gradient algorithm was developed to support color-coded categorization across time.

Sales presentation support

Beyond app development, we worked with the client to craft a compelling product demo scenario and supported their pitch materials to maximize the visual and narrative impact of the app.

Continuous collaboration and quick iteration

Weekly progress demos, close feedback loops, and flexibility across time zones helped align the product with the client’s needs and kept development moving toward a timely release.

Solution — Experimental Setup for Maintenance Work

The final application visualizes a full day of captured sounds using color-coded gradients, making it easy to spot patterns and recognize types of audio events without needing technical knowledge. Each type of sound — ranging from door knocks to human voices — is expressed along a 24-hour plot, giving users a practical overview of their home environment.

Designed with scalability in mind, the application also lays the foundation for more advanced use cases in healthcare or assisted living, where passive monitoring is preferred. The modular frontend structure makes it adaptable for future backend improvements or additional devices.

The SirnAI app helped the company confidently present its AI technology to potential partners and investors, proving that thoughtful UX and creative visualization can play a key role in early-stage product traction.

“Nomtek turned our technology into a stunning, functional app. Their team was very communicative and brought real creative insight to the project. The app helped us pitch our app and tech by clealry demonstrating the value of sound recognition. We couldn’t have asked for a better partner.”

Shy Ward, Co-Founder at Hamelin Tech

“Nomtek turned our technology into a stunning, functional app. Their team was very communicative and brought real creative insight to the project. The app helped us pitch our app and tech by clealry demonstrating the value of sound recognition. We couldn’t have asked for a better partner.”

Shy Ward, Co-Founder at Hamelin Tech

Team Composition

A cross-functional team of designers and developers worked closely to find a creative and highly functional data representation layer for sound categorization.

2

Flutter Developers

1

UX/UI Designer

1

Product Manger

1

QA Specialist

Create app to control hardware

Contact Us