I’m interested in finding a way to adjust the bpm of any given input sound using two sensors and an arudino + max. Ideally I would like to first determine the BPM of the incoming sound, then based on a threshold (i.e. when the bpm determined by the sensor-based data reaches a certain point), the sensors would provide a bpm that the patch would automatically adjust the track to in real-time.
I’m working on a simple prototype first, but the idea would be the sensors could be placed in ones shoes and wirelessly transmit data that would then be processed as bpm data…and would auto-adjust the tempo of whatever the person were listening to to match one’s pace.
I’ve considered trying to set this up simply with a midi-based dj program that has this feature built into the software, or perhaps working with Ableton + Max.. but I’m slightly stuck on beginning the project..
Anyone have any ideas on this at all?
Patience young Jedi….
I’m not in front of Max right now, but as far as tap-tempo bpm in Max you should look at the helpfiles for [transport] and [timer], and I also believe there’s an object called [tempo]; you could code your bpm calculator as an Arduino script or as a Max patch, depending on your level of expertise, but in Max use the timer to time 4 or 8 (or any) bangs and then average them; transport will allow you to convert this vaue to bpm.
An example may follow once I’m back in Max land
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