Ama-codec angu-3 ayinhloko iningi labalaleli abajwayele i-SBC, i-AAC ne-aptX:
I-SBC - I-Subband Coding - Ikhodekhi eyisibopho nezenzakalelayo yawo wonke ama-headphone e-stereo e-Bluetooth anephrofayili Yokusabalalisa Umsindo Ethuthukisiwe (A2DP). Iyakwazi ukukala amabhithi afika ku-328 kbps ngesilinganiso samasampula esingu-44.1Khz. Inikeza ikhwalithi yomsindo enhle ngaphandle kokudinga amandla amaningi okucubungula ukuze ubhale ikhodi noma uhlukanise. Nokho, ikhwalithi yomsindo ingase ihluke kancane ngezinye izikhathi. Lokhu kubonakala ikakhulukazi nge-transmitter ye-Bluetooth eshibhile.
I-AAC - Ukubhala Ngekhodi Okuthuthukile Komsindo - Ifana ne-SBC kodwa ngekhwalithi yomsindo engcono. Le codec idume kakhulu ngenkundla ye-iTunes ye-Apple kanye nezinye izinhlelo zokusebenza ezingenazintambo. Nokho, akuvamile kakhulu, ikakhulukazi kuma-headphone.
i-aptX - Ikhodekhi yobunikazi neyokuzithandela edizayinwe i-CSR. Ilungele izinhlelo zokusebenza ezilalelwayo ezifuna ngamandla njengoba ifaka amakhodi okulalelwayo ngempumelelo kakhulu futhi ngenani eliphakeme kakhulu kune-SBC. Kukhona futhi ukuhluka okubili okwengeziwe kwe-aptX(LL) kanye ne-aptX HD enciphisa kakhulu ukubambezeleka kokuxhumeka noma ithuthukise kakhulu ikhwalithi yayo yomsindo. Nokho, kukhawulelwe kancane njengoba kokubili isidlulisi se-Bluetooth nomamukeli kufanele babe ne-aptX noma ukuhluka kwayo ukuze i-codec isebenze.
I-Latency
Ama-codec anomthelela omkhulu ekubambezelekeni (funda kabanzi ngalesi sivivinyo) kunekhwalithi yomsindo yabalaleli abaningi. Uxhumo oluzenzakalelayo lwe-SBC luvame ukuba nokubambezeleka okungaphezu kuka-100 ms okubonakala lapho ubuka amavidiyo futhi kungase kuqine ngokwanele ukuba konakalise okuhlangenwe nakho kwakho kwegeyimu.
Ukuze kulungiswe ezinye zezinkinga zokuvumelanisa ezibangelwa ukubambezeleka, i-CSR ithuthukise i-aptX futhi kamuva i-aptX-Low Latency codec. I-aptX evamile yenza ngcono ukubambezeleka ngenxa ye-algorithm yayo yombhalo wekhodi esebenza kahle kune-SBC. Kodwa-ke, i-aptX-LL inomthelela obonakala kakhulu ekubambezelekeni.
Isiphetho
Ama-codec ama-algorithms acindezela idatha ukuze idlulise kalula futhi ngokushesha. Umbhalo wekhodi ongcono kanye nama-algorithms wokukhipha amakhodi kusho ukudluliselwa okulahlekelwa okuncane okungasiza ngekhwalithi yomsindo. Siqaphele ukuthi amakhodekhi anomthelela omkhulu ekubambezelekeni kunakwikhwalithi yomsindo.
