Iwo matatu makuru macodecs ayo vateereri vazhinji vanoziva ndeye SBC, AAC uye aptX:
SBC - Subband Coding - Iyo inosungirwa uye yakasarudzika codec kune ese stereo Bluetooth mahedhifoni ane Yepamberi Audio Distribution Profile (A2DP). Inokwanisa kuita bit rates kusvika 328 kbps ine sampling rate ye44.1Khz. Inopa mhando yakanaka yekuteerera pasina kuda simba rakawanda rekugadzirisa encode kana decode. Nekudaro, iyo odhiyo mhando inogona kunge isingaenderane dzimwe nguva. Izvi zvinonyanya kuoneka neyakachipa yeBluetooth transmitter.
AAC - Yepamberi Audio Coding - Zvakafanana neSBC asi zvine ruzha rwemhando yepamusoro. Iyi codec inonyanya kufarirwa neApple's iTunes papuratifomu uye mamwe mamwe asina-waya maapplication. Nekudaro, haina kunyanya kuwanda, kunyanya kune mahedhifoni.
aptX - A proprietary and optional codec yakagadzirwa neCSR. Yakanakira kukumbira maodhiyo ekushandisa sezvo inokodha odhiyo zvakanyanya uye pamwero wepamusoro zvishoma pane SBC. Kune zvakare maviri ekuwedzera mutsauko aptX(LL) uye aptX HD iyo inogona kuderedza zvakanyanya latency yekubatanidza kana zvakanyanya kunatsiridza mhando yayo yekuteerera. Nekudaro, ikati inodzikamisa sezvo zvese zviri zviviri Bluetooth transmitter uye inogamuchira inofanirwa kunge iine aptX kana misiyano yayo kuti codec ishande.
Latency
Codecs ine simba rakakura pane latency (dzidza zvakawanda nezvebvunzo iyi) kupfuura pamhando yeruzha kuvateereri vazhinji. Iyo yakasarudzika SBC yekubatanidza kazhinji ine inodarika 100 ms yelatency iyo inocherechedzwa kana uchiona mavhidhiyo uye inogona kuve yakakomba zvekukanganisa ruzivo rwako rwemitambo.
Kugadzirisa dzimwe nyaya dzesync dzakakonzerwa nekunonoka, CSR yakagadzira aptX uyezve iyo aptX-Low Latency codec. Yenguva dzose aptX inoita zvishoma inonatsiridza latency nekuda kweiyo inoshanda encoding algorithm kupfuura SBC. Nekudaro, aptX-LL ine inonyanya kuoneka maitiro pane latency.
mhedziso
MaCodecs ndiwo maalgorithms anomanikidza data kuitira nyore uye nekukurumidza kutapurirana. Zvirinani encoding uye decoding algorithms zvinoreva kushoma kurasikirwa kutapurirana izvo zvinogona kubatsira nemhando yekuteerera. Isu takaona kuti macodecs ane kukanganisa kukuru palatency pane pamhando yekuteerera.
