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 AMR?

AMR (Adaptive Multi-Rate) is an audio format optimized for speech compression.

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 i 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 papatahi me tētahi tautuhi codec whānui ake, kāore i te raruraru te whakatuwheratia. 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 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 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 AMR he whakaaetanga whakawhiwhinga?

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 AMR?

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.

Ka taea e au te whakahōu te whakaroa i te wāhi i te whakarerekētanga o AMR?

Tata tonu ki te kore, ā, e mōhio ana te take: he tohu te whakaroatanga, i te wā e hanga ana ngā paerewa i roto mō tētahi hanga tauwhāiti. Ka whakaputaina e te whakahōutanga he faila ko te ingoa e whakapuakina ana he mea kāore i te tuku i ōna ihirangi, ā, ko te mea e whakatuwheratia ai, ka whakakāhore rānei i te faila, ka pāpāho rānei. Ko te whakawāteatanga whāiti kotahi ko ngā hanga e rua e tino ōrite ana i raro i ngā ingoa rerekē — ā, ahakoa he haumaru ake te whakaroanga tika i te whakahōutanga.

Ka taea e au te tahuri i tētahi pūrākau katoa o ngā pūranga AMR i roto i tētahi neke?

Me tētahi kāwanatanga, ā, — ka whakawātea rātau i te katoa, ā, ka whakawāteatia hei mahi kotahi, kaua e whakahaeretia tētahi i tētahi wā, me ngā whakaritenga ōrite e hoatu ana i te rōpū, ā, ka hoki ngā hua tahi. Ko ngā tahuritanga wātea e whakahaere ana i tētahi pūranga kotahi i tētahi wā (e rua ngā utauta whakakotahi); Ko te kaupapa utu te mea e whakawātea ai i te tukanga rōpū me te tepe nui ake i ia pūranga, e whakarerekē ana i tētahi pūranga katoa.