AMR Kaitahuri

Tahuri AMR ki ngā momo whakatakotoranga me te hoki mai i ngā momo whakatakotoranga

Mō AMR

Ko te AMR (Adaptive Multi-Rate) he whakatakotoranga puoro ororongo kua arotauhia mo te whakawaehere korero. Ka whakamahia i roto i nga waea pukoro mo nga rekoata reo me te purei oro.

Ngā Whakamahinga Noa

Voice recordings
Mobile audio
Telephony

AMR Ngā Pātai Auau mō te Tahuritanga

He aha te pūkete oro AMR?

Ko te AMR he pūkōrero reo ā-roto i whakamahia tuatahitia e ngā whatunga pūkoro 2G/3G. Ka tangohia e te AMR te reo mārama i ngā tātaitai iti rawa, ā, he noa iho i roto i ngā tānga reo, ngā pūkete whakahau-ki-te-kōrero, me ngā pūrongo reo o ngā momo pūkoro tawhito. Ka whakaiti te AMR i ngā pūkete reo—he wā kotahi o te kōrero e āhei ana ki ētahi megabytes—a, ko te mea tonu e pūkete ana i ngā whakarongo te nuinga o ngā pūkoro.

He nui te āhuatanga kua ngaro i roto i tētahi pūranga AMR?

Ko te mea katoa i whakatau te kaikōrero taketake ki te whakakore, ā, kāore e taea te whakaora. AMR 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 i te wā o nāianei i te whakaora i te taketake. Ko te AMR he pūkōrero kōrero whāiti e haere ana i waenganui i te 4.75 me te 12.2 kbps, e tauira ana i te whakawhitinga reo tangata i te wā o te pūoro pūoro katoa.

He aha te āhua o te pūkete o te AMR i te whakatairite ki te pūoro?

Ko te mea kāore i te whakaritea kia mau i te pūoro. AMR He pūkōrero kōrero whāiti i hangaia mō ngā whatunga pūkoro, i whakaritea hei pupuri i ngā kupu e mōhio ana ki tētahi mokatere tātari i inetia i roto i ngā kilobiti mati kotahi. Ko ngā mea katoa i waho o te awhe o te reo tangata e whakawāteatia ana i te wā o te whakataki. Ko te tahuri ki tētahi āhua ā-whāiti katoa e pupuri ana i te whakataki i ngā wāhi katoa, engari kāore e taea te tāpiri anō i ngā auautanga kāore i te tauiratia. Ka whakangaromia e AMR te pūoro: ka tangohia e tōna 8 kHz te awhe katoa i runga ake i ngā auautanga tātari, ā, kāore he nui o te whakakōrerotanga e hoki ana ki a ia.

Mai i reira e puta mai ana ngā pūranga AMR?

Ko ngā pūnaha momo, ngā reo reo, ngā reo reo, ngā pūrere tawhito me te whakataki whakarongo - i ngā wāhi katoa me haere te oro i runga i tētahi kanikani whāiti, utu nui. E whakamāramatia ana e taua taonga tuku iho te take o te iti o ngā pūkete me te take o te pūoro i te āhua e pā ana. Ka whakarerekētia rātou ki ngā pūmanawa noa; kāore, kāore e taea, te tāpiri i te pono kāore i te whiwhi i te whakataki. Ko te AMR he Āhuatanga-maha-whakahaere, te pūkōrero kōrero 3GPP i whakaritea mō ngā whakarongo reo GSM me ngā pūkōrero reo poho.

He aha te take i puta ai te tātau pūranga AMR me te kore ingoa rererangi, mahi toi rānei?

Nā te mea kāore he wāhi e pupuri ai i a rātou te āhua. AMR 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.

Me tiaki tonu ahau i ngā pūranga hōu hei AMR?

Ahakoa rā, mēnā e hiahiatia ana e tētahi mea ki raro iho. Ka tuwhera tonu te āhua, ā, kāore he tūpatotanga mō te tahuri i tētahi pūranga kāore e take ana i ngā raruraru, engari kāore anō kia haere te utauta, te tōtika rānei. Mō tētahi mea hōu, kāore he utu tāpiri o te āhua o nāianei, ā, ka ārai i te porowhita o tēnei pātai i ētahi tau mai i tēnei wā.

He aha te take kāore e whakaata ana tētahi AMR i roto i tōku whakataki?

Ko ngā kaiwhaiwhai e whakakōrero ana i tētahi rārangi poto, pūmau o ngā āhua reo, ā, ko AMR 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 te whakatū i te raruraru. Mēnā me whakapāpāho te oro i runga i tētahi pouwāhi whatunga, ko te tahuritanga te whakatūtū — kāore he whakaritenga kaiwhakaari 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 AMR?

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.

He ngaro te AMR, he kore rānei?

He ngaro te AMR — ka tangohia e te kaituhi te raraunga e whakatau ana te kaituhi kia kore e taea te whakarongo hei tae ki tētahi rahi pūranga iti.

He aha te mea me tahuri au i te AMR hei tiritiri?

Mō te maipū me te tiritiri pāpāho pāpori, ka tahuri AMR ki te MP3 — te whakataetae ao whānui me te rahi o te pūranga iti. Mō te tiritiri pūmautanga ki ngā kaikōrero, ka tahuri ki te FLAC, WAV rānei hei pupuri i te āhuatanga taketake.