ʻO nā codecs nui 3 i kamaʻāina ka hapa nui o ka poʻe hoʻolohe ʻo SBC, AAC a me aptX:
SBC - Hoʻokaʻawale ʻana i ka pūnaʻi lalo - ʻO ke codec koi a paʻamau no nā headphone Bluetooth stereo āpau me ka Advanced Audio Distribution Profile (A2DP). Hiki iā ia ke helu bit a hiki i 328 kbps me ka helu sampling o 44.1Khz. Hāʻawi ia i ka maikaʻi leo maikaʻi me ka ʻole e koi nui i ka mana kaʻina hana e hoʻopaʻa ai a decode paha. Eia naʻe, hiki ke ʻano like ʻole ka maikaʻi o ka leo i kekahi manawa. ʻIke ʻia kēia me kahi transmitter Bluetooth cheap.
AAC - Hoʻopili Leo Kiʻekiʻe - E like me SBC akā me ka maikaʻi o ke kani. Ua kaulana loa kēia codec me ka Apple's iTunes platform a me kekahi mau polokalamu kelepona ʻole. Akā naʻe, ʻaʻole ia he mea maʻamau, ʻoi aku hoʻi no nā headphone.
aptX - He codec ponoʻī a koho ʻia e CSR. He kūpono ia no ke koi ʻana i nā noi leo no ka mea ua hoʻopili ʻo ia i ka leo i ʻoi aku ka maikaʻi a ma kahi kiʻekiʻe iki ma mua o SBC. ʻElua hoʻololi hou aptX(LL) a me aptX HD e hōʻemi nui ana i ka latency o ka pilina a i ʻole e hoʻomaikaʻi nui i kona ʻano leo. Eia nō naʻe, he palena iki ʻoiai ʻo ka mea hoʻouna Bluetooth a me ka mea hoʻokipa pono e loaʻa i ka aptX a i ʻole kona mau ʻokoʻa no ka hana ʻana o ka codec.
Latency
Loaʻa ka hopena nui o nā codec i ka latency (e aʻo hou e pili ana i kēia hoʻokolohua) ma mua o ka maikaʻi leo no ka hapa nui o nā mea hoʻolohe. ʻO ka pilina SBC maʻamau ka mea maʻamau ma mua o 100 ms o ka latency i ʻike ʻia ke nānā ʻana i nā wikiō a paʻakikī paha e hōʻino i kāu ʻike pāʻani.
No ka hoʻoponopono ʻana i kekahi o nā pilikia sync i hoʻokumu ʻia e ka latency, ua hoʻomohala ʻo CSR i ka aptX a ma hope iho ka codec aptX-Low Latency. Ke hoʻomaikaʻi nei ka aptX maʻamau i ka latency ma muli o kāna algorithm hoʻopāʻālua ʻoi aku ka maikaʻi ma mua o SBC. Eia nō naʻe, loaʻa i ka aptX-LL ka hopena ʻike loa i ka latency.
Panina
ʻO nā codec nā algorithm e hoʻopaʻa i ka ʻikepili no ka maʻalahi a me ka wikiwiki. ʻOi aku ka maikaʻi o ka hoʻopili ʻana a me ka hoʻokaʻawale ʻana i nā algorithms ʻoi aku ka liʻiliʻi o ka hoʻouna ʻana i hiki ke kōkua i ka maikaʻi leo. Ua ʻike mākou he nui ka hopena o nā codec i ka latency ma mua o ka maikaʻi leo.
