You're a falling star, you're the get away car You're the line in the sand when I go too far You're the swimming pool, on an August day And you're the perfect thing to say And you play it coy, but it's kinda cute Oh, when you smile at me you know exactly what you do Baby don't pretend, that you don't know it's true 'Cause you can see it when I look at you And in this crazy life, and through these crazy times It's you, it's you, you make me sing You're every line, you're every word, you're everything You're a carousel, you're a wishing well And you light me up, when you ring my bell You're a mystery, you're from outer space You're every minute of my everyday And I can't believe, uh that I'm your man And I get to kiss you baby just because I can Whatever comes our way, oh we'll see it through And you know that's what our love can do And in this crazy life, and through these crazy times It's you, it's you, you make me sing You're every line, you're every word, you're everything So, la, la, la, la, la, la, la So, la, la, la, la, la, la, la And in this crazy life, and through these crazy times It's you, it's you, you make me sing You're every line, you're every word, you're everything You're every song, and I sing along 'Cause you're my everything Yeah, yeah So, la, la, la, la, la, la, la So, la, la, la, la, la, la, la, la, la, la, la
An approach would be to take the original song and the backing track and cancel out what is common to both of them (ie. The instrumentals). This is done by inverting one of the tracks and then adding the waveforms, so the resultant wave for the waveforms of the instrumental is 0, leaving behind the vocals. Equalisation is also used to isolate certain frequencies within sound as the frequency of a singer's voice tends to be far lower than a piano or a guitar and higher than say bass instruments. So the signals of a range of frequencies that vocals fall within can be boosted and the others attenuated. Many softwares have vocal isolation or removal features such as Audacity.
It's really easy there's a lot of Ai software that can isolate vocals , instruments ect There's even websites that let you do one or two songs every 24 hours free
