Raws li koj tuaj yeem paub, lub suab zoo, latency ntawm cov khoom siv Bluetooth sib txawv tuaj yeem sib txawv. Yog vim li cas? Niaj hnub no peb yuav muab koj cov lus teb rau lo lus nug no.
Bluetooth high-zoo suab kis tau tus mob yog raws li A2DP profile. A2DP tsuas yog txhais cov txheej txheem thiab txheej txheem rau kev xa cov ntaub ntawv suab zoo xws li mono lossis lub tso suab ntawm ib qho asynchronous txuas tsis muaj channel. Cov txheej txheem no zoo ib yam li cov ntaub ntawv xa tawm suab. Cov ntaub ntawv kis tau los ntawm Bluetooth tau muab faib ua hom hauv qab no raws li nws cov ntawv encoding:
ce yog SBC
Qhov no yog tus qauv encoding hom rau Bluetooth suab. A2DP (Advanced Audio Distribution Profile) raws tu qauv yuav tsum tau coding hom. Qhov siab tshaj plaws tau tso cai yog 320kbit / s hauv mono thiab 512kbit / s hauv ob txoj kev. Txhua Bluetooth audio chips tseem yuav txhawb nqa lub suab encoding hom ntawv no.
ce yog AAC
Lub tshuab muab los ntawm Dolby Laboratories, nws yog ib tug siab compression piv encoding algorithm. iPhone siv AAC hom ntawv rau Bluetooth kis tau tus mob. Tam sim no, Apple's Bluetooth audio devices pib siv AAC encoding technology. Thiab ntau cov khoom tau txais xws li Bluetooth hais lus / lub mloog pob ntseg ntawm kev ua lag luam kuj txhawb AAC kev txiav txim siab.
ce yog APTX
Nws yog CSR's patented coding algorithm. Tom qab nws tau los ntawm Qualcomm, nws tau los ua nws lub ntsiab coding technology. Nws tau thov hauv kev tshaj tawm tias nws tuaj yeem ua tiav CD suab zoo. Feem ntau cov xov tooj tshiab hauv Android tau nruab nrog APTX. Lub tshuab thev naus laus zis no ua haujlwm tau zoo dua li classical Bluetooth coding, thiab kev mloog zoo dua li ob qho dhau los. Cov cuab yeej siv APTX thev naus laus zis yuav tsum tau thov kev tso cai los ntawm Qualcomm thiab them tus nqi tso cai, thiab lawv yuav tsum tau txais kev txhawb nqa los ntawm ob qho tib si xa thiab tau txais qhov kawg.
ce yog APTX-HD
aptX HD yog cov lus txhais siab, thiab lub suab zoo yuav luag zoo ib yam li LDAC. Nws yog ua raws li classic aptX, uas ntxiv cov kev txhawb nqa 24 ntsis 48KHz suab hom. Cov txiaj ntsig ntawm qhov no yog qhov sib piv ntawm cov teeb liab-rau-suab nrov thiab tsawg dua distortion. Nyob rau tib lub sijhawm, qhov kis tau tus mob yog qhov tseeb heev.
ce yog APTX-LL
aptX LL yog qhov qis-latency, lub ntsiab feature yog tias nws tuaj yeem ua tiav qhov latency tsawg dua 40ms. Peb paub tias qhov kev txwv latency uas tib neeg tuaj yeem xav tau yog 70ms, thiab ncav cuag 40ms txhais tau tias peb tsis tuaj yeem xav tias ncua sijhawm.
ce yog LDAC
Qhov no yog lub suab coding tshuab tsim los ntawm SONY, uas tuaj yeem xa cov ntsiab lus siab (Hi-Res). Cov thev naus laus zis no tuaj yeem xa mus txog peb zaug ntau npaum li lwm cov thev naus laus zis thev naus laus zis los ntawm kev ua kom zoo coding thiab optimized sub-packaging Cov ntaub ntawv. Tam sim no, cov thev naus laus zis no tsuas yog siv hauv SONY tus kheej cov khoom xa tawm thiab txais khoom. Yog li ntawd, tsuas yog SONY teeb kis tau tus mob thiab tau txais cov cuab yeej txhawb nqa LDAC audio coding technology tuaj yeem yuav los txhawb LDAC-encoded Bluetooth audio cov ntaub ntawv xa mus.
Feasycom nthuav tawm ob peb qhov kev daws teeb meem uas txhawb nqa APTX hom. Qhov koj tuaj yeem pom lawv hauv qab no:
Koj xav li cas txog qhov 6 Loj Bluetooth Audio Formats Taw Qhia? Xav tias dawb xa ib qho kev nug kom paub meej ntxiv. Ua tsaug rau koj nyeem tsab xov xwm no.
