Kev sib kis tau kho qhov muag tau kho qhov muag tau tuaj yeem thaiv cov suab nrov digital, thiab cov poob hauv cov txheej txheem xa tuaj yog tsawg heev;
Kev sib kis tau ntau dua vim yog kev ua tsis ncaj ncees, thiab tsawg dua electro - kho qhov muag, photheLawj kev hloov siab hloov dua siab tshiab.
Ob yam kev cuam tshuam muaj cov khoom sib txawv thiab cov khoom siv hlau, yog li lawv tsis tuaj yeem siv sib hloov pauv.
Kev kis fiber ntau yam kev sib kis tau siv cov kab mob tshwj xeeb Optical fiber ntau yuav tsum siv cov kab sib txuas tshwj xeeb (dav dav tsis yog hloov los yog audio zoo ntau, thiab tej zaum yuav muaj kev puas tsuaj rau cov khoom siv.