Is it possible to create a patch that calculates the BPM of an audio file being played from an sfplay~ object in real time (with as frequent a refresh as possible and as accurate as possible)? If so how on earth can it be done? Have been struggling with tempo~ to no avail.
Beat tracking is not the easiest thing to do reliably. Tristan Jehan’s
beat~ does a fairly good job and might be what you’re looking for. You
can find the external here: http://web.media.mit.edu/~tristan/
Also, a google search or the ever useful maxobjects.com is usually a
much faster and enlightening path to finding answers to these types of