loop to bpm issue

    Mar 24 2013 | 11:47 am
    I usually use this formula to get the bpm of a loop:
    Number of beats * Sampling Rate * 60 / loop length in samples = BPM
    Is there a way to get the bpm without knowing the beats of the loop? I ask that because the looper from ableton can get the tempo without abletons transport running..