Aletra: Multisensor Logger

Your iPhone carries a magnetometer, a barometer, an accelerometer, a compass, a microphone that reaches down into infrasound, and a LiDAR scanner. Aletra puts them to work together: it measures, shows what it measures, timestamps every reading and exports the lot to CSV. Aletra records. It does not interpret or draw conclusions for you. What the numbers mean is your call, and that is the whole point. WHAT PEOPLE USE IT FOR - The hum you only hear at night. Leave the iPhone resting somewhere, turn on background monitoring and go to sleep. In the morning you have every episode with its time, its level in the 15-22 Hz band and its vibration, ready to export. - The interference bleeding into your speakers. Open the EMF detector and walk slowly: the reading rises as you approach the source. Wiring, a transformer, a charger behind the furniture. - The home studio. Before you settle on a mic…