Kanye’s method of sampling technique is typical of sampling from the 90s, and he is the master of manipulating tempo to chop and stretch his samples, which he does on an Ensoniq ASR-10. Here’s what the Wu-Tang Clan’s RZA has to say about the ASR-10:

“The beautiful thing about the ASR-10 is this: It was the first sampler that you could play the beat that you made. I mean, let’s say you already made a drum pattern. You could sample while playing your beat. Therefore you could monitor what you were sampling and hear what you were adding to it. As A DJ that was perfect, I could scratch in what I wanted and sample and hear it as I did it, and be on beat every time.” -RZA (The Wu-Tang Manual)

The ASR-10 is pretty outdated now, not that that stops Kanye from using it, but we can use a similar technique by utilising Ableton Live’s “Slice to New MIDI Track“ function, which will cut our sample into bits and let us play it back however we want. Kanye prefers to use the keyboard and painstakingly getting the timing right through trial and error (Kanye West making an ill track in the studio – YouTube), but you can also use MIDI pads if you have them, or adjust the blocks in the Piano Roll.

The sample is too slow to rap over, so the first step it to raise the speed and pitch. In Ableton Live turn on Warp and use the Repitch warp mode, then raise the tempo of the sample from the original 66BPM to the new 85BPM. The main issue here is to get the pitch as to be as in-tune as possible, there’s no secret trick to this, just play the sample against another instrument and rely on your ears.