WebM → AMR

Heoi, ā, e tika ana te whakarite i te taha. He ngaro nga āhuahira e rua, nā reira ko te AMR encoder e mahi ana mai i te oro, kua puta kētia e tētahi whakawhitinga psychoacoustic, ā, ko ōna whakataunga anō e whakakotahi ana i te tautuhi tuatahi. I te 192 kbps, i runga ake rānei i te hua, he mārama tonu te hua mō te nuinga o te whakarongo. Mēnā kei a koe tētahi māngai kore ngaro i tētahi wāhi, ka whakakōrerotia te AMR mai i tērā, ka ārai katoa i te whakawhitinga rua. He whāiti te WebM: VP8, VP9 rānei te ataata (AV1 ināianei) me te Vorbis, te oro rānei, me ētahi atu. 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.

Ka whakaroatia ki raro ki te stereo, nā te mea kāore he āhuatanga ā-maha o AMR. Ka whakamahia e te whakarōpūtanga ngā taupū paerewa kia mārama ai te whakawhitinga pūwāhi-pūwāhi, ā, ka whakarōpūtia ngā rohe i te taumata iti iho. Ka ngaro te mea katoa i runga i te tauwāhi pūwāhi motuhake ina puta mai. 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.

Nā te mea he pūkōrero kōrero tētahi taha o te pūkōrero, ehara i te pūkōrero pūoro. E tauira ana i te pūkōrero tangata, ā, ka whakakore i ngā mea katoa i waho o te awhe whatunga, he pai mō te pūrongo reo, he tūkino hoki mō ngā mea katoa me ngā utauta i roto. Kāore e taea te whakaora i ngā auautanga kāore i te ngaro - kāore anō kia waihangatia i te tuatahi. He kino te WebM i tētahi wāhi i waho o te kaiwhaiwāhi — ko ngā kaiwhakawhanake ataata, ngā whare karakia taketake o ngā tāuru me ngā Smart TV e tino whakakāhore ana i a ia.

Ko te bitrate pūmau mō te ngaro AMR ko te 192 kbps, he mārama mō te pūoro. Ka taea e koe te whakahōu ki te 320 kbps (pūoro), 96-128 kbps rānei (whakaaho / podcast / pūranga iti ake). Ka puta te bitrate i roto i ngā kōwhiringa tiketike i mua i te kōwhiri i te tahuri.

Mēnā he kore ngaro te AMR (WAV, FLAC), ka tiakina ngā tauira katoa ki te tika. Mēnā he ngaro te AMR (MP3, AAC, OGG, Opus), ka whakawhāiti anō te codec AMR te pūtake oro — i te 192 kbps he mārama te hua mō te nuinga o ngā ihirangi. Ka haere te ngaro → kāore e whakaora ana i ngā taipitopito kua whakakoretia.

E whakawhirinaki ana — 48 kHz te oro i roto i tōna WebM e noho ana 48 kHz i roto i te AMR huaputa. Mō te pūkōrero CD-burner, te pūkōrero rānei, ka taea e koe te whakamōhio ki te 44.1 kHz mā te whakaroa o te ōrite tauira; He mātauranga SoX-kitenga te tātai.

He — ka tangohia he pūrākau o ngā pūranga WebM, ā, ka tangohia e tātau te oro i te taha kotahi. Ka whiwhi ngā kaimahi utu nui ake i ngā kaimahi taha kotahi; i runga i te 50-file batch ko tēnei te rerekētanga i waenganui i ngā minu me ngā minu tekau.

Mēnā ka mau te WebM i te wāhanga, i te metadata rānei o te rerenga, ka tārua tātau i ngā āpure taitara / kaitapere / pūranga ki roto i te AMR. Mēnā kāore, ka puta mai te AMR kāore i te whakahuahua - hoatu i tētahi kaiwhakawhanake tohu (Mp3tag, Picard) i muri i te whakahuahua mo te whakahuahua ā-wai.

He tere te whakahua reo + whakahua - i te nuinga o te 5 ki te 15% o te roanga pūtake. Ko te 1-ora WebM → AMR e whakamutu ana i roto i te 3 ki te 9 min i runga i te pūtautau paerewa; Ka whakaiti ake te whakahua Premium i tēnei mō ngā mahi rōpū.

Kāore i roto i tēnei utauta — ka tangohia te oro katoa hei AMR, kātahi ka whakamahia te /oro-trim /, /oro-kutter / rānei hei whakaiti i te wāhanga. He tere ake te ara e rua-ki tētahi mahi whakakotahi, ā, ka hoatu ki a koe te mana tika o te taumata-whakamoho.

He — te tauira anō o te ātetetanga pēneia huringa: kaimahi motuhake, kāore he arotakenga tangata, he tango ā-pūmau i roto i ngā minu o te whakaotitanga. Ko te matapihi tauwhāiti o te tiakitanga i runga i te / ātetetanga/.