An update of the automax project
This is a Max patch that generates engine sounds (car, airplane, and spaceship) by reading RPM data from a bluetooth OBD-II sensor in an automobile. It uses Max adaptations of Pd patches by Andy Farnell from “Designing Sound”. And a Fourier filter patch (spaceship) by Katja Vetter.
In this audio clip, an airplane engine sound is mixed with a car engine sound.
The Max patch has been updated to detect available bluetooth devices. The audio example above was done with this device (Bluetooth Supper Mini OBD 2/OBD II ELM 327 Power 2)
But any Elm 327 device should work, as long as it will connect with your computer.
The device pictured above needs to be deleted and re-paired each time you use it (code: 1234). I would recommend looking for something else.
Abstractions and other files
- max-pd-abstractions folder (needs to be in Max file path or a subdirectory)
Follow the sequence of events as directed in the patch. Starting by selecting your device from the menu in the upper left corner. If there is a problem with the serial connection you will get “read 0” messages – or an error in the Max window.
Set the polling rate as slow as possible (700 ms.) and then work backwards.
The Korg NanoKontroller works with this patch too.