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Comments
Apps are written within the capabilities the device presents. Apps aren't capable of automatically conforming to your desires.
I don't think that's necessarily true. Quantising is really exactly that. Smart-playing in Garageband. What happens when you tell Siri, "play something relaxing;" it's smart enough to know what you mean. If I tap out a rhythm on the table, there are apps that can work out a waltz from a 4/4. The brain, after all, is just a very very clever iPad. Apps are becoming more intuitive all the time and I don't expect it will be long before they accomplish many of the same feats as having a musician in the room with you. But, for now, it seems like there isn't an app that does quite what I want!
@james948
I disagree about quantize. Quantize is a premade standard for an app to try and conform your playing to a specific note resolution. It's not going to automatically know your end goal. It's just going to take your input and conform it to whatever note resolution that the quantize is set for.
As far as Siri and "play something relaxing". That has entirely to do with file metadata that was input by a human at some point, and Siri is just recalling keywords from that.
I'd love to know what app can "work out a waltz from a 4/4" that you tap out on the table?
Overall, I understand what you'd like for a drumming app and intuitive response. It would be great, but I don't think there's anything in iOS which has that kind of processing ability. As has been mentioned by myself and others here, DrumPerfect comes closest but it runs like a resource hog. DrumPerfect Pro coming out should be a vast improvement and may be close to what you want.
You could do it using pre-defined grooves I guess. Timing is harder. You could try to identify it using volume of hits I guess. It would be pretty error prone in practice. Particularly given how easy it is to just count the beats.
Yes, bad example. But if you say "play songs like this" it will rely on Genius which went through the waveforms and compared them. Music is just maths and computers are good at maths.
But even I could write a script that analyses the distance between waveforms and their variable sizes. If you can measure tempo you can tell the difference between a simple waltz and 4/4.
I think you should go for it. By the time the script does anything reliable you'll know everything you need know about counting meters.
I 2nd this
No you can not.
1.The musical data you can process in digital realm are time, signal and its amplitude(Hz+volume in audio & note+velocity in MIDI) aka a recorded file.
2.JUST FOR AUDIO: Then you'll have to define thresholds for all these parameters saying this is the kick drum and that is the snare, splitting frequencies and so on a la drumagog.
3.Then your script won't be able to judge in any case if that half second silence at the beginning of the recording is a actual pause or just you being late at the first hit since you were hitting the record button and the same will happen to the end of the recording.
3.bis So you truncate your file to the correct measure, included pauses, but still it won't be able to judge if those tiny imperfections in your timing were intentional or just you being sloppy.
4. Assuming that the script manage to sort both stages 3 any you get THE MEASURE in the likes of x/[(2^a)(3^b)(5^c)*y] which probably will be wrong, it will be still far far away to give you the answer you was looking for. (https://en.m.wikipedia.org/wiki/List_of_musical_works_in_unusual_time_signatures)
5. Then our dear script will analyze the volume to detect accents to figure out some kind of scheme(which usually is put into programs by man) and get a relatively small choice of possible rhythms you were playing, beside the infinite amount of calculations it made to determine that the last two bars you played were a crescendo and not simple accents gone wrong.
6. And here we are. But how is it possible it didn't understand you was playing the hats on a 7/8 while the kick drum was on rather simple 4/4 and the toms(altogether obviously) were playing at 4/3. Damn polyrhythms!
7. Since we are Thomas Anderson we don't get scared and we keep on coding but our cpu melts down at the moment in which it is deciding whether it was one 8/4 bar rather than 2 4/4. Because that couldn't be defined in a such small scale but it is much more about an entire composition and sometimes it is just arbitrary.
But anyway, follow the white rabbit.
Or get a mic and record yourself on a drum kit, send it to a midi file and use it as a groove template. Or just record audio.
Sketch out the drums by tapping and mangling in ikaossilator then you can just recreate it if you need different sounds, though I find the sounds to be quite usable