E like me kāu e ʻike ai, hiki ke ʻokoʻa ka maikaʻi o ke kani, ka latency o nā mea Bluetooth like ʻole. He aha ke kumu? I kēia lā e hāʻawi mākou iā ʻoe i pane i kēia nīnau.
Hoʻokumu nui ʻia ka hoʻoili leo leo kiʻekiʻe Bluetooth ma ka ʻaoʻao A2DP. Ho'ākāka wale ʻo A2DP i ka protocol a me ke kaʻina hana no ka hoʻouna ʻana i ka ʻike leo kiʻekiʻe e like me ka mono a i ʻole ke kani ʻana ma ke kahawai pili ʻole asynchronous. Ua like kēia protocol me ka pipeline hoʻouna ʻikepili leo. Hoʻokaʻawale ʻia ka ʻikepili i hoʻouna ʻia ma o Bluetooth i nā ʻano like ʻole e like me kāna ʻano hoʻopāpā:
he aha SBC
ʻO kēia ke ʻano hoʻopāpā maʻamau no ka leo Bluetooth. ʻO A2DP (Advanced Audio Distribution Profile) protocol koi ʻia i ka hōʻano coding. ʻO ka palena kiʻekiʻe loa i ʻae ʻia ʻo 320kbit / s ma ka mono a me 512kbit / s ma nā kahawai ʻelua. E kākoʻo pū nā pahu leo Bluetooth āpau i kēia ʻano hoʻopāpā leo.
he aha AAC
ʻO ka ʻenehana i hāʻawi ʻia e Dolby Laboratories, he kiʻekiʻe compression ratio encoding algorithm. Hoʻohana ʻo iPhone i ka format AAC no ka lawe ʻana i ka Bluetooth. I kēia manawa, hoʻohana maoli nā mea leo leo Bluetooth o Apple i ka ʻenehana hoʻopili AAC. A he nui nā mea e loaʻa ana e like me nā leo Bluetooth / headphone ma ka mākeke e kākoʻo pū i ka decoding AAC.
he aha APTX
ʻO ia ka algorithm coding patented CSR. Ma hope o ka loaʻa ʻana e Qualcomm, ua lilo ia i kāna ʻenehana coding nui. Ua ʻōlelo ʻia ma ka hoʻolaha e hiki ke hoʻokō i ka leo kani CD. Loaʻa ka hapa nui o nā kelepona Android hou me APTX. ʻOi aku ka maikaʻi o kēia ʻenehana hoʻopaʻa leo ma mua o ka coding Bluetooth maʻamau, a ʻoi aku ka maikaʻi o ka hoʻolohe ʻana ma mua o nā mea ʻelua. Pono nā ʻenehana e hoʻohana ana i ka ʻenehana APTX e noi no ka ʻae mai Qualcomm a uku i ke kumukūʻai ʻae, a pono lākou e kākoʻo ʻia e ka hoʻouna ʻana a me ka loaʻa ʻana.
he aha APTX-HD
ʻO ka aptX HD ka leo wehewehe kiʻekiʻe, a ua aneane like ke ʻano o ke kani me LDAC. Hoʻokumu ʻia ia ma ka aptX maʻamau, e hoʻohui i nā kahawai e kākoʻo i ka format leo 24 bit 48KHz. ʻO nā pōmaikaʻi o kēia ʻano haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me ka haʻahaʻa haʻahaʻa. I ka manawa like, ua hoʻonui nui ʻia ka hoʻouna ʻana.
he aha APTX-LL
ʻO aptX LL he haʻahaʻa haʻahaʻa, ʻo ka hiʻohiʻona nui ka hiki ke hoʻokō i kahi latency ma lalo o 40ms. ʻIke mākou he 70ms ka palena latency a hiki i ka 40ms, ʻaʻole hiki iā mākou ke manaʻo i ka lohi.
he aha ʻO LDAC
He ʻenehana hoʻopaʻa leo leo kēia i hoʻomohala ʻia e SONY, hiki ke hoʻouna i nā ʻike leo kiʻekiʻe (Hi-Res). Hiki i kēia ʻenehana ke hoʻoili ma kahi o ʻekolu manawa e like me nā ʻenehana coding ʻē aʻe ma o ka coding kūpono a me ka sub-packaging optimized ʻO ka ʻikepili. I kēia manawa, hoʻohana wale ʻia kēia ʻenehana i kā SONY ponoʻī e hoʻouna a loaʻa i nā lako. No laila, hiki ke kūʻai ʻia ka pūʻulu SONY o ka hoʻouna ʻana a me ka loaʻa ʻana o nā lako e kākoʻo ana i ka ʻenehana hoʻopaʻa leo leo LDAC e kākoʻo i ka hoʻouna ʻike leo Bluetooth i hoʻopaʻa ʻia e LDAC.
Ua hōʻike ʻo Feasycom i ʻelua mau hāmeʻa module e kākoʻo ana i nā palapala APTX. Hiki iā ʻoe ke loaʻa iā lākou ma lalo nei:
He aha kou manaʻo e pili ana i kēia 6 Major Bluetooth Audio Formats Introduction? E ʻoluʻolu e hoʻouna i kahi nīnau no nā kikoʻī hou aku. Mahalo iā ʻoe no ka heluhelu ʻana i kēia ʻatikala.
