This is the MVP version of a wearable stethoscope, which currently remains in the so-called “Stealth Mode”, so it would be crucial to demonstrate the potential of the solution quickly and at a low cost. Although it’s hard to believe, the entire app was developed in just 1 week! First, with the help of SwiftUI, we implemented a functional mockup that demonstrated how the finished app would look “in motion”.
Then we implemented the business logic without making any changes to the user interface. The business logic included communication via Bluetooth Low Energy, decoding the audio signal and then processing it and recording it to the device memory. The icing on the cake is the advanced audio controls: swipe to seek, play/pause, seek +/- 10s, seek start/end, and audio visualization for easy navigation through the recording.