Engineers have known for a century that mechanical sound carries information. Every attempt to use it hit the same wall: comparing recordings against a library of known sounds. The library was always behind, every new make, model, and powertrain needed new reference data.
AutoSonix went around the wall. PTX™ is built on a custom applied AI model, trained on a large proprietary dataset collected from real-world vehicles. It measures the sound itself and cross-checks it with OBD and other vehicle context, so no make or model specific reference recording is required at intake. It is designed to work across makes and models, the same way, every time.