anong soundcard?
dude, yung soundcard na pang-recording. mas mataas yung resolution at sampling rate nila... (e.g. 24-bit, and up to 96-100+ khz sampling rate) low latency soundcards para mas madali ang pagrerecord.
yung sinasabi mo na P4k most likely yung transit or yung
jam lab usb yun. yung jam lab design pang-gitara... sorry, im not using that item so i can't say much.
sa pag-record ng guitar technically lahat pwede.
assuming na mic ang pangrerecord mo. usually the faster solution is to get usb items like the jam lab kasi plug and play saka they come with a tone processing-simulator software and drum loops.
kung gusto mo ng mas general function recording e malaking GAS attack yun.