BPM and Key Recognition

gennarakis

Hi there! Well done for this beautiful app! I want to suggest a feature which might be useful at sorting tracks when you know the bpm or key. So they could be autosorted in a playlist songs with similar tempo or at least choose them more easily when you know these two values. As DJs do in serato and other dj programs to choose which song matches with each other..

peter

I haven't found a library that can do that reliably and myself I don't have enough math knowledge to implement this. So This is on hold for the time being until I find a third party library that works well.

gennarakis

In what language is stage traxx written? I was in music technology school and used to write such programs..maybe I can help you with that!

peter

ST3 is written in Swift and makes extensive use of the Apple Accelerate framework for everything that involves calculations (like for example the waveform generation).