Zofunikira pa satifiketi ya FCC HAC pakuwongolera voliyumu

FCC imafuna kuti kuyambira pa Disembala 5, 2023, malo ogwirizira pamanja akuyenera kukwaniritsa muyezo wa ANSI C63.19-2019 (HAC 2019).
Muyezowu umawonjezera zofunikira zoyezera Volume, ndipo FCC yavomereza pempho la ATIS 'lopempha kuti asaloledwe pang'ono pamayeso owongolera voliyumu kuti alole malo ogwirizira pamanja kuti apambane satifiketi ya HAC posiya gawo la mayeso owongolera voliyumu.

Zofunikira pakuyesa kwaukadaulo pakusintha kupindula kwa zokambirana, kupotoza, komanso kuyesa kuyankha pafupipafupi kwa KDB 285076 D04 kuwongolera voliyumu pansi pa chikhalidwe cha DA 23-914

1.Malinga ndi kukhululukidwa, ma encoder amawu a CMRS Narrowband ndi CMRS Wideband okha ndi omwe amafunikira kuti akwaniritse zofunikira zowongolera voliyumu ya TIA 5050-2018 Volume Control standard:
1) Kuyesa kugwiritsa ntchito mphamvu ya 2N
Pamayeso omwe amagwiritsa ntchito mphamvu za 2N, mautumiki amawu ndi magulu ogwiritsira ntchito pazida zonse zolumikizidwa m'manja ndi zosintha zowongolera voliyumu ya bandi imodzi yocheperako ndi ma codec amawu amodzi mumlengalenga pogwiritsa ntchito encoder ratio yosankhidwa ndi wopemphayo ayenera kukhala ndi gawo limodzi lopindula≥ 6db ku.
2) Kuyesa kugwiritsa ntchito mphamvu ya 8N
Pamayeso omwe amagwiritsa ntchito mphamvu za 8N, mautumiki amawu ndi magulu ogwiritsira ntchito pazida zonse zolumikizidwa m'manja ndi zosintha zowongolera voliyumu ya bandi imodzi yocheperako ndi ma codec amawu amtundu umodzi pamawonekedwe amlengalenga pogwiritsa ntchito encoder ratio yosankhidwa ndi wopemphayo ayenera kukhala ndi gawo limodzi lopindula≥ 6dB.. Palibe chifukwa chokwaniritsa kapena kupyola zofunikira zonse zopindula ndi gawo la 18dB zomwe zafotokozedwa mu TIA 5050 Gawo 5.1.1.
2. Kwa ma codec ena omvera omwe sanayesedwe mu 2), kusokonekera kolandirira, kachitidwe kaphokoso, ndi ma frequency olandila ma audio mu TIA 5050-2018 nawonso safunikira, koma ma codec awa amafunikira kuwunika kupindula kwa gawoli kuposa 6dB pa 2N ndi 8N imanena za mautumiki onse a mawu, magulu ogwiritsira ntchito ndi ma air interfaces opanda zingwe.

 

Zofunikira zina za certification
1.Zolembazo zimagwirizana ndi zofunikira za 47 CFR Gawo 20.19(f) (1) ndikuwonetsa phindu lenileni la gawo lomwe limapezeka pansi pa malamulo a codec osaloledwa omwe atengedwa mu 1) ndi 2) pamwambapa ndi 2N ndi 8N kugwiritsa ntchito mphamvu.
2.Kuphatikiza pa zofunikira zomwe zatchulidwa mu 1) ndi 2) pamwambapa, mautumiki onse a mawu, codeDEC, magulu ogwiritsira ntchito, ndi mawonekedwe a mpweya omwe ali oyenerera kumasulidwa kwa HAC ayenera kutsatira 2019 ANSI Standard Section 4 WD RF Interference, Gawo 6 WD T- Kuyeza chizindikiro cha coil.
3.Pambuyo pa Disembala 5, 2023, ma terminals am'manja akuyenera kutsimikiziridwa ndi mikhalidwe yosiya kukhululukidwa kapena kukwaniritsa muyezo wa 2019 ANSI ndi TIA 5050 Volume control standard. Nthawi yochotsera ikatha, ngati Commission sachitapo kanthu, ma terminals am'manja adzaonedwa kuti akugwirizana ndi zofunikira zothandizira kumva ngati akwaniritsa mulingo wathunthu wa ANSI wa 2019 komanso muyezo wa TIA 5050 wowongolera voliyumu.
4.Kukhululukidwa kutha patatha zaka ziwiri kuchokera tsiku lotulutsidwa la Exemption Order DA 23-914, ndipo malo ogwiritsira ntchito m'manja omwe akupezeka pansi pa chikhalidwechi sadzakhala omasuka ngati zothandizira kumva.
5.Pofuna kutsimikizira kuti ikutsatira lipoti la mayeso, chotengera cham'manja chimatha kutanthauza njira yoyeserera yosavuta yofananira malinga ndi zomwe zidachitikira kuti muchepetse kuyezetsa.
Popeza si ma codec onse omwe amathandizidwa ndi chipangizocho ayenera kukwaniritsa zofunikira, zilibe kanthu kuti ma codecwa akukwaniritsa zofunikira kapena ngati phindu la gawolo liyenera kuwunikiridwa motsutsana ndi kukhululukidwa, lipoti loyesa liyenera kukhala ndi mndandanda wa ma codec onse omwe amathandizidwa ndi chipangizocho. .