Tsanangudzo yeAptX Bluetooth codec uye aptX vs SBC
Akasiyana-siyana ma-audio-enabled audio devices anogona kushandisa codec dzakasiyana-siyana dzinoguma nehutano hwakasiyana-siyana uye kusiyana kwehutano hwakasiyana. Imwe codec inobva kuQualcomm iyo inoziviswa seine "zviri nani-kupfuura-CD" inhu, inonzi aptX.
Chinangwa cheAptX (chakanyorwa kare -apt-X ) ndechokupa zviridzwa zvekunzwa nzira dzekunaka kwehutano hwepamusoro kupfuura izvo zvimwe zvinyorwa zvinogona kupa. Zvimwe zvinogona kushandisa aptX zvinosanganisira headphones, mafoni, mafurafura, motokari yemotokari, kana mamwe marudzi eBluetooth speakers.
Izwi rokuti aptX rinoreva kwete chete teknolojia yepakutanga asiwo nezvimwe zvakasiyana-siyana zvakasimudzirwa seAhanced aptX , aptx Live , aptX Low Latency , uye aptx HD - yose inobatsira mumamiriro akasiyana mukati meharaunda.
Nzira yakadini Inofananidzwa neSBC
Nokusingaperi, ma-madivaysi eBluetooth anofanira kutsigira pasi-pasi-kuoma kunzwisisa-sub-band coding (SBC) codec. Zvisinei, mamwe macodecs akafanana neAptX anogona kushandiswa pamwe neSBC, iyo yakavakwa chete kuti ipe ruzha rwakanaka.
SBC inotsigira sampling frequencies kusvika 48 kHz uye uye bit pari kusvika 198 kb / s ye mono streams uye 345 kb / s yemisasa stereo. Kana uchienzanidza, aptX HD inotumira mutauro kusvika pa 576 kb / s ye 24-bit 48 kHz file, iyo inobvumira kuti data yakaderera yepamhanzi yakakurumidze kuendeswa nokukurumidza.
Imwe misiyano ndeye nzira yekugadzirisa inoshandiswa nemakodhi maviri aya. aptX inoshandisa izvo zvinodanwa kushandiswa kusiyanisa kupera-code modulation (ADPCM). "Kusiyana kwakasiyana-siyana" kunoreva kuti sei uye shanduro ipi inoparidzirwa inoparidzirwa. Chii chinoitika ndechokuti chiratidzo chinotevera chinotarisirwa zvichienderana nechiratidzo chepakutanga, uye musiyano pakati pezviviri ndiwo chete data inoshandiswa.
ADPCM inoparadzanisa inzwi mumapoka mana akasiyana-siyana akasiyana-siyana anogadzirisa mumwe nomumwe ane chienzanidzo chake chekuita-ku-rwiyo (S / N), iyo inotsanangurwa nechiratidzo chinotarisirwa kusvika kumazwi emheremhere. aptX yakaratidzwa kuti ine S / N iri nani pakushanda nehuwandu hwehurukuro, izvo zvinowanzowira pasi pe5 kHz.
NeAptX Low Latency, unogona kutarisira kudarika 40 ms de latency, iyo yakawanda kwazvo kupfuura SBC ya100-150 ms. Izvi zvinorevei kuti iwe unogona kukwira mashoko anowirirana nevhidhiyo, uye tarisira kuti inzwi rifanane nemavhidhiyo pasina kunonoka kwakafanana sechigadzirwa chinoshandisa SBC. Kuva nehurukuro inoramba yakabvumirana nemavhidhiyo inokosha munzvimbo dzakadai sedhidhiyo kushambadza uye kurarama mitambo.
Icho chinonzi aptX kushandura maitiro akataurwa pamusoro apa ane zvavanoshandisa, zvakare. Somuenzaniso, aptX Live yakagadzirirwa zviitiko zvepasi zvishoma apo michina dzisina wireless dziri kushandiswa. Kuvandudzwa aptX yakagadzirirwa zvakanyanya kune zvidzidzo zvevashandi uye inotsigira kusvika pa 1.28 Mb / s bit rate ye 16-bit 48 kHz data.
Zvose izvi zvinosvika pakushandisa zvigadzirwa zveAptX ndeyekuti unofanira kukwanisa kunzwa ruzha runonzwika uye runyararo nehupamhi hwemashoko ehurukuro, uye teerera kune zvinhu zvakanakisisa zvezvinhu zvakanyanya uye zviduku zvishoma uye kunonoka.
aptX Devices
Iyo yekutanga aptX source device yaiva Samsung yeGalaxy Tab 7.0 Plus, asi teknolojia yeQualcomm aptX ikozvino inoshandiswa mumamiriyoni emagetsi emagetsi kubva kumazana emagetsi.
Unogona kuwana aptX mumabharani, mapiritsi, vatauriri, uye headphones inogadzirwa nemakambani akadai seVizio, Panasonic, Samsung, uye Sony.
Unogona kuwana zvimwe zvezvikwata paWebC's aptX Products website. Kubva ipapo, unokwanisa kufuta zvitsva kuratidzira aptX, aptX HD, uye aptX Low Latency zvigadzirwa.
ICodec Isn & # 39; t Izvo Zvose Zvakakosha
Funga nezvekuti AptX inongova codec uye haireve kuti mafoni, mafoni, nezvimwewo, achaita zvakanaka chete nokuti sodec codec haisati yashandiswa. Pfungwa iyi ndeyekuti teknolojia yeBluetooth ndiyo iyo inobatsira zvayo.
Mune mamwe mazwi, kunyange kana imwe shanduro inoshandiswa, haisi kuzova nekuvandudza kukuru kana kuteerera teerera yepamhanzi faira kana kushandisa zvinyorwa zvinoputsika; iyo codec inogona kungoita zvakanyanya nokuda kwehutano hwehutano, uye zvimwe zvacho zvinosara kusvika kune chaiyo dhizha dhizha, kupindira kwemaitiro, kushandiswa kwemichina, nezvimwe.
Zvakakoshawo kuziva kuti zvese kutumira uye kugamuchira chidimbu cheBluetooth kunoda kutsigira aptX yezvipo zvingaonekwa, zvisinei kuti codec shoma (SBC) inoshandiswa nekusavapo kuitira kuti zvigoni zvose zvigone kushanda.
Muenzaniso wakajeka unogona kuonekwa kana uri kushandisa foni yako uye vamwe vari kunze kweBlue speakers. Iti foni yako inoshandisa aptX asi vatauriri vako havaiti, kana kuti foni yako haisi asi vataure vako vanoita. Chero nzira, zvakafanana nekusava neAXX zvachose.