I am producing some music, and as a test I would like to rip drum tracks from an mp3 to use as a backing track for my recording. Which software can I use to rip the drum track from a song?
Answer by Rizzy · Feb 28, 2011 at 11:12 PM
Well, MP3's don't work that way. They are not a multi-track audio file. There is no way to extract one particular track of audio from an MP3 so it's either all or nothing.
The only way this could be done is if you had audio software that supported multi-track recording and it was a multi-track file, or if it was some sort of MIDI file with each individual MIDI track mapped out with a separate drum track.
Sorry to tell'ya, but that's the way it is.
Answer by trueb · Mar 01, 2011 at 02:01 AM
It may be possible, but not without a lot of hard work and even still it probably will not work all that well but here is how I would approach it:
The MP3 has the drum data encoded in it, the issue is that it has a lot of other things mixed in as well. But the drums have a frequency range. Being a computer engineering major i had to take a class on signal analysis. It is possible to extract a range of frequency's from a signal you can create a filter, or series of filters, to filter out all other sounds but the drums.
The issues with this is there is a good chance that some other non drum sound crosses over the drum track. and thus you will have overlay and unwanted sounds in your drum track...
Many algorithms have been developed to remove the blur from a blurry photograph, it is simply image processing. One filter to do this with photos is the Wiener Filter. Law enforcement does such things when solving crimes, a security camera gives a grainy blurry photo, they can enhance it. Image processing is not much different from audio signal processing, believe it or not. Historically the Wiener Filter is for noise reduction and although I am not sure exactly how to apply it for this application, but it is still possible.
So final thoughts, yes I'm sure you can do it, I am not sure how but the data is there somewhere, you just have to find it and find a way to remove it.
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