Li-codec tse 3 tsa mantlha tseo bamameli ba bangata ba li tloaetseng ke SBC, AAC le aptX:
SBC - Subband Coding - Codec e tlamang le ea kamehla bakeng sa li-headphone tsohle tsa stereo tsa Bluetooth tse nang le Advanced Audio Distribution Profile (A2DP). E khona ho etsa li-bit ho fihla ho 328 kbps ka sekhahla sa sampole sa 44.1Khz. E fana ka boleng bo botle ba molumo ntle le ho hloka matla a mangata a ho sebetsa ho encode kapa ho hlaola. Leha ho le joalo, boleng ba molumo bo ka batla bo sa tsitsane ka linako tse ling. Sena se bonahala haholo ka transmitter ea theko e tlaase ea Bluetooth.
AAC - Khoutu ea Mantsoe e tsoetseng pele - E ts'oana le SBC empa e na le molumo o betere. Codec ena e ratoa haholo ke sethala sa iTunes sa Apple le lits'ebetso tse ling tse se nang mohala. Leha ho le joalo, ha e tloaelehe haholo, haholo-holo bakeng sa li-headphones.
aptX - Codec ea botho le ea boikhethelo e entsoeng ke CSR. E nepahetse bakeng sa ho batla lits'ebetso tsa molumo kaha e kenyelletsa molumo ka mokhoa o atlehileng haholoanyane le ka sekhahla se phahameng hanyane ho feta SBC. Ho boetse ho na le mefuta e 'meli e meng e fapaneng ea aptX(LL) le aptX HD e ka fokotsang haholo latency ea khokahano kapa e ntlafatsang boleng ba eona ba molumo haholo. Leha ho le joalo, ho na le moeli o itseng kaha mochine oa Bluetooth le moamoheli o tlameha ho ba le aptX kapa mefuta ea eona e fapaneng hore codec e sebetse.
Latency
Li-codec li na le tšusumetso e kholo ho latency (ithute haholoanyane ka teko ena) ho feta boleng ba modumo bakeng sa bamamedi ba bangata. Khokahano ea kamehla ea SBC hangata e na le ho feta 100 ms ea latency e hlokomelehang ha u shebelletse livideo 'me e kanna ea ba e matla hoo e ka senyang boiphihlelo ba hau ba papali.
Ho lokisa tse ling tsa litaba tsa sync tse bakiloeng ke latency, CSR e ntlafalitse aptX mme hamorao ea aptX-Low Latency codec. AptX ea kamehla e ntlafatsa latency ka lebaka la algorithm ea eona ea khouto e sebetsang hantle ho feta SBC. Leha ho le joalo, aptX-LL e na le phello e hlokomelehang haholo ho latency.
fihlela qeto e
Codecs ke li-algorithms tse hatellang data bakeng sa phetiso e bonolo le e potlakileng. Li-encoding le li-decoding algorithms li bolela phetisetso e fokolang e ka thusang ka boleng ba molumo. Re hlokometse hore li-codec li na le tšusumetso e kholo ho latency ho feta boleng ba molumo.
