Nhanganyaya kuFCC HAC 2019 Vhoriyamu Yekudzora Kudzora Zvinodiwa uye Maitiro muUnited States.

Iyo Federal Communications Commission (FCC) iri muUnited States inoda kuti kutanga kubva Zvita 5, 2023, zvese zvinobatwa nemaoko zvigadziriso zvinofanirwa kuzadzisa zvinodiwa zve ANSI C63.19-2019 standard (kureva iyo HAC 2019 standard). Kuenzaniswa neiyo yekare vhezheni yeANSI C63.19-2011 (HAC 2011), mutsauko mukuru pakati pezviviri zviri mukuwedzera kwevhoriyamu yekudzora bvunzo zvinodiwa muHAC 2019 standard. Zvinhu zvekuyedza zvinonyanya zvinosanganisira kukanganisa, frequency mhinduro, uye kuwana chikamu. Izvo zvinoenderana nezvinodiwa uye nzira dzekuyedza dzinoda kureva kune yakajairwa ANSI/TIA-5050-2018.
US FCC yakapa 285076 D05 HAC Waiver DA 23-914 v01 exemption regulation musi wa29 Gunyana 2023, paine nguva yemakore maviri kutanga musi wa5 Zvita 2023. D04 Vhoriyamu Kudzora v02 kana pamwe neiyo yenguva pfupi yekuregererwa maitiro gwaro KDB285076 D05 HAC Waiver DA 23-914 v01 pasi pe285076 D04 Volume Control v02. Kuregererwa uku kunobvumira zvigadziriso zvinobata ruoko zvinotora chitupa kudzikisa zvimwe zvinodiwa zvekuyedza zvinoenderana neANSI/TIA-5050-2018 nzira dzekuyedza kuti dzipfuure Volume Control bvunzo.
Kune iyo Volume Control bvunzo, izvo chaizvo zvekuregererwa zvinodiwa ndezvizvi:
(1) Yekuyedza narrowband uye Broadband coding yeasina waya network nhare masevhisi (akadai AMR NB, AMR WB, EVS NB, EVS WB, VoWiFi, nezvimwewo), zvinodiwa ndezvizvi:
1) Pasi pekumanikidzwa kwe2N, munyoreri anosarudza mwero wakamanikana wekodhi uye chiyero chebroadband encoding. Pane imwe vhoriyamu, kune ese masevhisi ezwi, bhendi mashandiro, uye marongero echiteshi chemhepo, chikamu chechikamu chinofanira kunge chiri ≥ 6dB, uye kukanganisa uye frequency mhinduro inofanira kusangana nezvinodiwa.
2) Pasi pekumanikidzwa kwe8N, munyoreri anosarudza mwero wakamanikana encoding uye chiyero chebroadband encoding, uye kune ese masevhisi ezwi, bhendi mashandiro, uye marongero echiteshi chemhepo pavhoriyamu imwe chete, chikamu chechikamu chinofanira kunge chiri ≥ 6dB, pachinzvimbo chechiyero ≥. 18dB. Iko kukanganisa uye frequency mhinduro inosangana nezvinodiwa zveyero.
(2) Kune dzimwe narrowband uye Broadband encodings isina kutaurwa muchinhu (1), chikamu chechikamu chinofanira kunge chiri ≥ 6dB pasi pekumanikidza mamiriro e2N uye 8N, asi hapana chikonzero chekuyedza kukanganisa uye frequency mhinduro.
(3) Kune dzimwe nzira dze encoding dzisina kutaurwa muchinhu (1) (zvakadai seSWB, FB, OTT, nezvimwewo), hazvidi kuti zvizadzise zvinodiwa neANSI/TIA-5050-2018.
Mushure meZvita 5, 2025, kana FCC ikasaburitsa mamwe magwaro, bvunzo yeVolume Control ichaitwa nemazvo zvinoenderana nezvinodiwa neANSI/TIA-5050-2018.
BTF Testing Lab ine HAC 2019 certification yekuyedza kugona, kusanganisira kupindira kweRF Emission RF, T-Coil chiratidzo chekuyedza, uye Vhoriyamu Kudzora vhoriyamu yekudzora zvinodiwa.