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/ ___|__ _ _ __ _ __ ___ ___ _ __ _ _
| | / _` | '__| '_ ` _ \ / _ \| '_ \| | | |
| |__| (_| | | | | | | | | (_) | | | | |_| |
\____\__,_|_| |_| |_| |_|\___/|_| |_|\__, |
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A work-in-progress open source version of Mercedes' MBUX Sound Drive
See a demo of the script in action here
See the original Mercedes Sound Drive demonstration here
Music Files/Loops: ModeAudio on YouTube
Music Control: PyGame
OBD Reading: Python-OBD
- An ELM327 OBD Reader like this (Not an affiliate link)
- PyGame
- Python-OBD
- A car with an OBD2 port
- A laptop or Raspberry Pi
The aim for this repo is to enable a musical loop to be controlled using inputs from a car's OBD port, similarly to the effect of Mercedes' Sound Drive.
When the program is ran, any song, broken down into four stems, will play. The four stems are as follows: bass.wav, drums.wav, other.wav, and vocals.wav. These can be generated for any song for free using Spleeter.
As adjustments are made to the car's current state (RPM, Speed, and Throttle), the volumes of each of the five loops will change. They change in accordance with this graph:
This chart shows volume of instrument on the Y axis, and percentage activation of the measured heuristic (Speed or RPM) on the X axis. RPM is represented as a number from 0.0-1.0, corresponding to values from 0-7000rpm. Speed is also represented as a number from 0.0-1.0 representing speeds from 0-70mph.
Currently, the script works for any song split into four stems for any song. A more ambitious version would be to split and play different samples from the song at custom intervals depending on the state of the car.
If you want to set this up for yourself, you will need to download the files listed in this repo onto a laptop or Raspberry Pi. Then, you will need an ELM327 OBD2 reader like this.
Simply connect the USB OBD2 reader to your computer's COM4 USB port (This will need to be adjusted manually if using a different port, Linux, or a wireless OBD reader). Then run the script. If all goes well, it should start to work after a few seconds.