LDAC ndi chiyani?
LDAC ndi ukadaulo wamawu wopanda zingwe wopangidwa ndi Sony. Idawululidwa koyamba pa 2015 CES Consumer Electronics Show. Panthawiyo, Sony idati ukadaulo wa LDAC unali wopambana katatu kuposa ma encoding a Bluetooth ndi makina opondereza. Mwanjira iyi, mafayilo amawu okwera kwambiri sadzakhala oponderezedwa kwambiri akamatumizidwa popanda zingwe, zomwe zidzakweza kwambiri mawu.
Mukatumiza mawu omveka bwino a LPCM, ukadaulo wa LDAC umasunga kuya kwake kocheperako komanso kuyankha pafupipafupi, zomwe zimapangitsa kufalitsa kwapamwamba kwambiri ngakhale pa audio ya 96kHz/24bit. Mosiyana ndi izi, luso lamakono la Bluetooth audio transmission, asanatumize LPCM audio, posamutsa deta yomvera, chinthu choyamba kuchita ndi "kunyozera" kanema wapamwamba kwambiri kukhala CD khalidwe la 44.1 kHz / 16 pang'ono, ndiyeno kufalitsa. kudzera pa 328 kbps, zomwe zidzapangitse kutayika kwakukulu kwa chidziwitso, kwa KAWIRI. Zomwe zingapangitse kuti izi zitheke: mtundu womaliza wamawu ndi woyipa kwambiri kuposa mtundu wakale wa CD.
KOMA, nthawi zambiri ukadaulo uwu ukhoza kugwiritsidwa ntchito pazida za Sony.
Kodi aptX ndi chiyani?
AptX ndi audio codec standard. Muyezowu umaphatikizidwa ndi Bluetooth A2DP stereo audio transmission protocol. Muyezo wanthawi zonse wa Bluetooth stereo audio coding ndi: SBC, yomwe imadziwika kuti narrowband coding, ndipo aptX ndi mulingo watsopano wamakhodi woyambitsidwa ndi CSR. Pansi pa kabisidwe ka SBC, nthawi yochedwa ya Bluetooth stereo audio transmission inali yopitilira 120ms, pomwe mulingo wa encoding wa aptX ungathandize kutsitsa latency mpaka 40ms. Kuchedwa komwe anthu ambiri amatha kumva ngati latency ili pamwamba pa 70ms. Chifukwa chake, ngati muyezo wa aptX utakhazikitsidwa, wogwiritsa ntchito sangamve kuchedwa pakugwiritsa ntchito kwenikweni, monga momwe amawonera TV mwachindunji ndi makutu opanda kanthu.
Feasycom, monga m'modzi mwa opereka mayankho abwino kwambiri a Bluetooth, adapanga ma module atatu otchuka a Bluetooth okhala ndiukadaulo wa aptX, aptX-HD. Ndipo iwo ndi:
Nthawi ina mukafuna njira yothetsera projekiti yanu yopanda zingwe, musaiwale FUNSANI THANDIZO LA FEASYCOM!
