Ko te AC-3 (Dolby Digital) te aho-wāhanga e whakamahia ana i runga i ngā DVD me te pouaka whakaata, e mau ana ki ngā kanikani e ono.
Ngā Whakamahinga Noa
DVD audio
Surround sound
Blu-ray audio
AC3 Ngā Pātai Auau mō te Tahuritanga
He aha te AC3?
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AC3 (Dolby Digital) is a multi-channel surround sound audio format.
E hiahiatia ana he pūrere AC3 hei whakatangitangi i runga i ngā pūrere?
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Kāore i te tino — he rerenga bit delivery whitiāhua. E mau ana tētahi AC3 rerenga i tētahi whakakotahitanga ā-waikana maha e whakaritea ana hei whakakōrerotia e tētahi AV kaiwhiwhi me te tukuna ki ngā kaipāpāho tūturu e whakatakotoria ana i te ruma. Me whakaroa e tētahi tāuru, tāuru rānei ki ngā awa e rua i mua i te whakataetae, ā, he mārō kē atu, he mārō kē atu hoki te whakakotahitanga i tētahi rererangi stereo i whakawhanaketia hei stereo. Ka tahuri mēnā he pūrere te ūnga; Ka pupuri mēnā he kaiwhiwhi te ūnga. Ko te AC-3 te whakataki ā-rohe o ia kaiwhiwhi AV, te kaiwhakaari DVD me te whakakōrero pouaka whakaata, ko te take tonu e noho tonu ana te taketake o te whakawhitinga.
He nui te āhuatanga kua ngaro i roto i tētahi pūranga AC3?
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Ko te mea katoa i whakatau te kaikōrero taketake ki te whakakore, ā, kāore e taea te whakaora. AC3 Ka whakawhāiti mā te tauira i te mea kāore e kitea e te roro — ngā oro mārō e noho ana i raro i ngā oro nui, ngā auautanga i te taha o te whakarongo — ā, ka tangohia tūturu. I tētahi bitrate ora kāore e taea te whakarongo ki te tata ki te katoa. Ko te mea kāore e taea te whakarerekē, nā reira ka tiaki i te āhua o nāianei ki tētahi āhua kore ngaro, kaua e whakaora i te taketake. Ko te AC-3 he oro oro maha-kana, i te nuinga o te wā 5.1 i te 384, 448 rānei kBps, me ngā metadata mō te whakawhanaketanga o te kōrero me te whakawhanaketanga.
He aha te pūoro oro i runga i tētahi pūkōrero AC3 i ngā wā katoa?
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Nā te mea i whakaingoatia e ngā paerewa pūrere. Me whakakōrerotia e te kaitapere te oro i roto i ngā pūrere taumahi pūmau me te kore pūmanawa me te kore whakahōutanga, nā reira i kōwhiria e te whakaahuatanga tētahi āhua me ia pūrere i whakapōtiti mai i te wā i mau ai. Ko te take e whakahaeretia ana e te kaiwhiwhi i a ia me te kore e pā ki te kaiwhaiwhai — i haere te āhua i ngā wāhi katoa i haere ai te paerewa, ā, kāore i tētahi atu wāhi. Ko te AC-3 ko Dolby Digital, te āhua o te āhua o te āhua i paerewa mō ngā pūrere, DVD, te pāpāhotanga ATSC me te kiriata i te tīmatanga o ngā tau 1990.
He aha te take i puta ai te tātau pūranga AC3 me te kore ingoa rererangi, mahi toi rānei?
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Nā te mea kāore he wāhi e pupuri ai i a rātou te āhua. AC3 i tautuhia i te āhua o te oro, kāore he wāhi paerewa mō tētahi taitara, tētahi pūrākau, tētahi whakaahua papa rānei, nā reira ka hoki ngā kaiwhakaari ki te whakaatu i te ingoa faila. Ko te tahuri ki tētahi āhua tohu ko te mea e whakataki ana i tētahi puna — ka tuhituhitia ngā tohu i te wā o te tahuritanga, kaua i te whakaora, nō reira e tūmanako ana kia oti i tētahi mea kāore i mau i te pūtake. Kāore te AC-3 i te māia e ngā paerewa o nāianei, ā, kāore e whakaaetia e ngā kaitiaki, ngā pūrongo, te nuinga rānei o ngā kaitapere Wīwī me te kore whakakotahi ki te pūrere.
He aha te AC3 i runga i nga pūrere me ngā pūwhitinga maha mēnā kāore anō ahau kia kōwhiria?
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Nā te mea kua whakawhiwhia te āhua ki ngā pūrere, kaua e kōwhiria e te kaihautū. I whakamāramatia te āhua hei oro whakahau mo ngā pūrere mātauranga me ngā paerewa pāohotanga mātauranga, nā reira kua whakakōrerotia e ia kaiwhakaari, kaiwhakamaero, me te kāwai tauwhāiti i ngā tekau tau, ā, kua whakakōrerotia e te umanga ihirangi ki roto i te pūrere noho e ōrite ana ki te korenga o ngā kaiwhaiwāhi me ngā taupānga pūrongo.
Ka taea e tētahi AC3 te mau i tētahi 5.1 ngāwari?
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He — e whakahaere tika ana te āhuahanga i ngā pūkana neke atu i te rua, nā reira ka pupuri te whakakotahitanga ā-rohe i tōna whakaritenga pūkana, kaua e whakaroa ki te pūrere i te huarahi. Mēnā ka whakarongo rātau ki te whakaroa, ka whakawhirinaki ki te mutunga tawhiti: ka whakakōrerotia e te kaiwhiwhi ngā pūkana katoa, ka whakarōpūtia e te pūkoro i te wā whakataetae. Ka whakarerekētia ki tētahi āhuahira-pūrere anake ka noho tonu te whakaroa.
He mea hira rānei he toru tekau tau te AC3?
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Ko te pakeketanga anake ehara i te raruraru — he maha ngā āhuahira mai i taua wā e pai tonu ana, i te mea kua tekau tau te whakatinana i a rātou. Ko te mea e hiahiatia ana ko te wā: he pūranga iti, he pūkaha iti, kāore he whatunga, me ngā āhuatanga kāore e hiahiatia ana e tētahi. Ki te āhua tonu o ēnei whakaaro, he pai te āhuahira. Ki te kore rātau, ko te take ki te tahuri.
He aha te take kāore e whakaata ana tētahi AC3 i roto i tōku whakataki?
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Ko ngā kaiwhaiwhai e whakakōrero ana i tētahi rārangi poto, pūmau o ngā āhua reo, ā, ko AC3 i waho o ia, nā reira ka whakakōrerotia te faila i te wā o te whakapāpāhotanga, i te pūpāho rānei i te pūrongo o tētahi hapa. Ka whakatuwheratia e ngā pūmanawa papamuri me tētahi tautuhi codec whānui ake, kāore i te āhua o te raruraru. Mēnā me whakapāpāho te oro i runga i tētahi pouwāhi Wīwī, ko te tahuritanga te whakahōu — kāore he whakaritenga pūpāho e tāpiri ana i tētahi whakakōrero kāore i te whakapāpāhotia e te kaiwhaiwhai.
He aha te bitrate me tahuri au i a ahau i a ahau AC3?
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E ōrite ana ki te ūnga, ehara i te pūtake. Mō te pūoro, he mārama te 256 ki te 320 kbps ki te tata tonu ki ia kaimātau; mō te kōrero me ngā podcast, he nui te 96 ki te 128 kbps, ā, ka whakawātea anō te pūranga. Ko te whakawaehere i runga ake i te mokatere tāuru pūtake he mokowā whakawātea — he pono te tiaki i te oro i puta mai i tētahi whakawhitinga ngaro, ā, kāore e whakaora i tētahi mea i te whakawaehere tuatahi.
E hiahiatia ana e te AC3 he whakaaetanga whakawhiwhinga?
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Kāore mō koe. Ko ngā pūkōrero e pā ana ki ngā pūtake ā-whakahaere, ā, ka whakaritea te whakaaetanga e ngā tāngata e whakarewa ana i ngā whakarerekētanga — te pūkoro, te whakataki, te pūnaha whakahaere — i mua i te tae atu o tētahi pūkōrero ki a koe. Ko te take o te āhua i ngā wāhi katoa o ngā pūrere, ko te take o te tīariari-kore-kore, ā, kāore e huri i te tahuritanga o tētahi pūkōrero kua whiwhi ki a koe.
Ka huri te tahuri i te mokatere tauira o ahau AC3?
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Kāore, engari rawa ina tono koe. Ka pupuri tētahi tahuri i te mokatere pūtake — 48 kHz e noho ana ki te 48 kHz, 44.1 kHz e noho ana ki te 44.1 kHz — nā te mea he iti te utu o te hua ki te kore e hiahiatia. Ko ngā whakarerekētanga tūturu: e hiahiatia ana e ngā CD orooro te 44.1 kHz, kāore ētahi kaipāpāho pūrere tawhito e whakaae ana ki ētahi atu mea, ā, ko ngā pūwhitinga reo e hiahiatia ana he 16 kHz. Ka whakaritea te mokatere i roto i ēnei take, ā, ka waiho i te mea kē.
