ari Bluetooth mahedhifoni Hakusi kumukira kukuru kwezana redu ramakore, asi tinofanira kubvuma kuti vakaita kuti upenyu hwedu huve nyore zvishoma. Uye ndezvekuti, kunyangwe mahedhifoni ewaya anga asingakanganisi, zvaisanyanya kunakidza kupedza maminetsi akati wandei uchisunungura mapfundo usati wagona kuteerera rwiyo. Iyo 'True Wireless' pfungwa iri pano kuti igare, asi mahedhifoni asina waya achine zvakawanda zvakamirira, sezvazvakaita chikwatala mhando inodonhedza kana the kusawirirana kwekodeki.
Mahedhifoni ane waya ari nani pane Bluetooth?
Zvinogona kuita semanyepo, asi zvisinei nekuti tekinoroji inofambira mberi sei, pane zvigadziriso kubva kare izvo zvinoramba zvichipfuura zvigadzirwa zvemazuva ano. Kune akawanda marudzi uye siyana dzemahedhifoni asina waya, asi mukuita, kanenge pasina mimhanzi track yaunoteerera neimwe yeiyi michina inodarika mhando yatakanga tatova nayo nengano CD.
Mahedhifoni ewaya aiganhurirwa pakufambisa masaisai emuchina kubva pakadhi reinzwi remutambi kusvika munzeve dzedu. Ku bvisa tambo kubva kuequation, chii chinofanirwa kufamba kubva kunharembozha yako kuenda kune mahedhifoni ndeye electromagnetic wave. Zvadaro, ruzivo irworwo runofanira kushandurwa mumudziyo diki wawakaisa munzeve yako. Ndiro basa reDAC. Asi chinhu hachigumiri ipapo. To kuendesa data rakawanda munguva chaiyo uchishandisa Bluetooth, inodiwa compress ruzivo. Nokuda kweizvi, vanhu vane mukurumbira vanoshandiswa codecs. Iwo ekupedzisira ndiwo ane mhosva yekuti panogona kunge paine mukaha pakati pezvauri kutamba nezvauri kuteerera, pamwe netsananguro yekuti sei AirPods ichinzwika zvirinani pa iPhone pane parunhare rweAroid.
latency ndiyo nyaya
Unotenga mamwe mahedhifoni matsva uye woaedza nefoni yako. Iwo akanaka pakuteerera Spotify kana imwe imwe podcast. Asi rimwe zuva, iwe unoona kuti nhevedzano yauri kuona paNetflix haisi nhanho neruzha. Dambudziko iri rinoitika zvishoma uye zvishoma, sezvo teknolojia inofambira mberi. Nekudaro, zvinogoneka kuti zvakamboitika kwauri uye iwe unoda kuziva kana paine nzira yekuzviita gadzirisa dambudziko iri izvo zvinogumbura kana uchiona mafirimu, akatevedzana kana YouTube mavhidhiyo.
Iyo gap yaunoona pakati pemiromo yeanopindirana nezvaunonzwa ndiyo ine mukurumbira latency. Nguva yakadai yenguva inogara iripo, kunyangwe isu tikashandisa tambo. Latency inoyerwa mukati milliseconds, uye haioneki zvachose kana ichifamba pamitengo yakaderera. Nekudaro, kana latency yakakwira, chiitiko chekuteerera chinogona kuparadzwa zvachose.
codecs
Imwe neimwe headset inotsigira akati wandei codecs. Izvo zvakafanana zvinoenda kune ese mudziyo wauchazoshandisa seaudio sosi. Kune zviri nani uye zvakanyanya kuipa macodecs, asi chinonyanya kukosha kuziva ndechekuti headset uye playback mudziyo unofanira kutsigira yakafanana codec. Kunyanya kana tichitaura pamusoro pezvigadzirwa zvepamusoro. Kuziva macodecs kwakakosha kuti ukwanise kuwana zvakanyanya kubva kune chimwe nechimwe chigadzirwa uye kudzivirira inotya latency.
SBC
Iyi chiyero yakagadzirwa muna 1993, uye ndiyo shoma codec iyo chero yeBluetooth audio mudziyo unofanirwa kutsigira. Inoshandisa iyo A2DP odhiyo mbiri. Iyo yakaderera yeiyo codec ndeyekuti kudzvanya kwayo kunogona kuvandudzwa zvakanyanya. Inosvika pachiyero chepamusoro che 328 kbps, uye kuremara kwake chitsitsinho chake Achilles.
AAC
Yakanga iri kuvandudzwa kwemakambani akati wandei, pakati peiyo AT&T, Nokia uye Sony yakamira, kutaura mashoma. Hunhu hwayo hwekuteerera huri nani pane SBC, asi latency yayo yakatonyanya kuipa. Yakave yakakurumbira nekuda kweApple neYouTube. Kunyangwe kuve chiyero chekare, yanga ichivandudza nekufamba kwemakore, kunyanya muchikamu chekutumira chisina waya.
Mune iyi codec tinogona kusanganisira iyo LD-AAC uye akasiyana ayo, inova ndiyo inoshandiswa neApple mune yayo AirPods. Parizvino, mazhinji ematambudziko ayo ekutanga akagadziriswa nekuda kwekushanduka kwayo, uye zvinogona kutaurwa kuti iyo codec inokwanisa kutarisana neiyo yepamusoro muchikamu.
Sony LDAC
Izvi ndizvo imwe yemhando yepamusoro codecs zvatinazvo parizvino. Ndiyo tsananguro yekuti sei mahedhifoni asina waya emhando iyi ane mukurumbira sezvaari. Iine misiyano mitatu:
- LDAC 330kbps
- LDAC 660kbps
- LDAC 990kbps
Qualcomm aptX
Iyi codec yakatanga kugadzirwa mumakore ekuma 80. Muna 2015, Qualcomm yakaitora kuti igadzirise. Vakawana matatu akasiyana:
- Yakaderera latency: ine aptX LL musiyano. Inotsigira chiyero chakatenderedza 30 ms.
- Tsanangudzo yepamusoro: ine aptX HD musiyano. Iyi codec yakagadzirirwa kuteerera mimhanzi. Latency inobayirwa kuti iwedzere iyo yakanyanya bitrate, kuve chiyero chinodarika ruzha rweCD, ichikwanisa kufamba kusvika ku576 kbps pa24 bit uye 192 kHz.
- adaptive codec: Inokutendera kuti uchinje pakati peaptX LL uye aptX HD zvichienderana nezvatiri kutamba, kunyangwe kusvika pakati pehunhu.
LDHC (Hi-Res Wireless Audio)
Iyi codec yakagadzirwa neHWA, uye ine misiyano miviri. Sangano iri rinotsigirwa nemakambani akakosha muchikamu akadai seSennheiser, AudioTechnica, Pioneer kana Huawei. Iyo codec inokwanisa kuendesa inokwana 900 kbps pa24 bit uye 96 KHz ine zvishoma latency.
LC3
Inobvumira bitrate pakati pe160 kbps uye 345 kbps pakati pe8 ne48 kHz ine yakaderera kwazvo latency. Iko kukura kwe Bhurawuti Inokosha Yeboka (ZVINOTEVERA). Iyo inosanganisirwa mukati meBluetooth LE Audio tekinoroji.
Maitiro ekugadzirisa latency nyaya pane yako Bluetooth mahedhifoni
Dzimwe mhinduro dzinoshanda kuderedza kunonoka kwemahedhifoni ako Ndizvo zvinotevera:
Gadziridza macodecs pamidziyo miviri
Zvino zvaunoziva akanyanya kukosha macodecs kunze uko, tora tsvaga izvo zvinoenderana nefoni yako y Titus headphones.
Kana iwe uine yekare nhare uye nyowani mahedhifoni, dambudziko rekunonoka rinogona kunge riripo. Gadziridza sisitimu yekushandisa uye firmware yemahedhifoni ako. Chinangwa cheichi chiitiko ndechekudzivirira kushandisa yakanyanya generic codec, iyo, kuve yekare, zviri pachena kuti ndiyo inoshanda zvakanyanya.
Gadzirazve mudziyo
Dzimwe nguva, dambudziko harina kunyanya kukodheki sedambudziko chairo. Iwe unofanirwa kubatanidza mudziyo zvakare kana iwe uchifunga kuti pane nyaya dzekubatanidza kana iwe ukangoona latency mune imwe yeaya maviri mahedhifoni.
Dzivisa kupindira
Sezvatinoziva, kubatana kuburikidza neBluetooth kwakatetepa. Chokutanga pane zvose, nhambwe huru iyo inowanzoshanda 10 mamita. Chero zvipingamupinyi zvinogona kukonzera kusashanda zvakanaka.
Kana isu tine mimwe michina yakabatana uye iyo inoshandisawo Bluetooth, vanogona kukanganisa hutano. Izvi zvinogona kukonzera kukanganisa uye kuwedzera latency pakuteerera inzwi.
Haasi ese mafoni uye mahedhifoni anowirirana
Tinodzokera kunyaya ye codecs. Chero anogadzira mahedhifoni anoda kushandisa imwe yeaya anoshamisa macodec atakataura nezvawo muchikamu chakapfuura, anofanirwa kupfuura nebhokisi - kana varidzi vawo vachitengesa marezinesi, hongu. Iwo mahedhifoni akachipa anongotsigira ekare macodecs. Kuderedza latency kunenge kusingabviri. Zvino iwe unonzwisisa kuti nei uchigona kutenga mahedhifoni asina waya ejimu yemaeuro gumi, handiti?
Asi tinogonawo kuva nazvo dambudziko rekushandisa. Iwe unogona kuva nemahedhifoni akanaka kwazvo uye mbozha nhare iyo mugadziri asina kubhadhara marezinesi ekushandisa kweiyo codec. Mhedzisiro? Iyo headset ichashanda uchishandisa imwe codec yakasiyana. Nechikonzero ichi, AirPods anonzwika zvirinani paPhones uye Sony mahedhifoni anonzwika zvakakwana pane chero nhare inotsigira LDAC. Nemasystem, zvinhu zvakare zvinosiyana. Android haigadzirise macodecs zvakanaka, uye kusashanda kwayo kunoonekwa kana uchishandisa imwe semakomputa inoda seAAC.
Usati watenga Bluetooth headset, tsvaga iyo spec sheet yefoni yako uye inoongorora zvakanaka kuti inotsigira macodecs api. Zvadaro, tora maviri mahedhifoni anowirirana. Zvikasadaro, mudziyo wako uchashanda necodec isiri iyo yakakwana. Uye saka iwe unozviona zvese mumhando uye latency.