Hi,
in a patch I open a drum rhythm (kick, snare, hats) audio file (.wav).
Is there a way to capture the pulses with bangs or numbers, even just the kick, or even better also the snare and hats separately? So capture the audio level peaks, but separately for the different instruments.

-> pd on Linux

Thanks,
a.

@atux [bonk~] might work for you. It has been years since I have played with it but if memory serves for a simple source of 3 fairly different sounds like kick, snare, and hihat I did not even have to use the [learn( method, just get it configured right and I was able to use the color temp part of the right outlet and some [moses] to get bangs for each instrument. But I don't really remember the details and can not seem to locate the patch I used it in. The help file is not the greatest but other than the [learn( method it was fairly easy to figure out.

you can look through the wav and you can find the highest and lowest numbers. but you might want it from an average of 100 point length. so you could check the wav in batches of 100 or 1000 point groups and look for average hights. etc etc

@atux expanding on what @oid wrote, here are @yannseznec's video tutorials on [bonk~]:

I thought I'd watched one or two of them under tutorials, but I can't find them. Pro-tip: watch them on Youtube--there are six videos, but for some reason this site only shows the first one.

you can put the wav file into an array. and then look through the list of numbers. so at that point you only need to come up with regular math processes that might find what you want. the wav file will probably be half positive numbers and half negetive numbers. so you might end up only looking at the positive numbers. then you might check the list in groups of points - 1-100, 2 -101 3 through 104 etc etc and then get a score after doing a process looking for the highest number per batch. then you look at the score list. and you might find that you can get the high points by adjusting your group / batch cropper.

This is a first rough and elementary attempt at using [bonk~]. By setting the threshold I can roughly isolate the kick and hihat.

test_bonk.pd