Mataki na 1: Loda naka MOV fayiloli ta amfani da maɓallin da ke sama ko ta hanyar ja da sauke su.
Mataki na 2: Danna maɓallin 'Maida' don fara hira.
Mataki na 3: Sauke fayil ɗin da aka canza AMR fayiloli
MOV zuwa AMR Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan fitar da sauti daga fayil MOV kamar AMR?
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Ka shigar da fayil MOV kuma mu demuxe wakar sauti, sa'an nan mu sake canza shi zuwa AMR. Ba a da wani gudun bidiyo ba kuma babu asarar ingancin da ya wuce abin da codec ɗin AMR ya sanya; kayan aikin /extract-audio/ na tafiyar da irin wannan paipin.
Mene ne bitrate ɗin sauti da fayil AMR ke amfani da shi?
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DimbaAMR na diff shine 192 kbps (mai haske ga kiɗa). Ka sake zuwa 320 kbps (audiophile), 128 kbps (podcast na yau da kullum), ko 96 kbps (zabe / mafi ƙarancin fayil). Zaɓin yana musanya girman fayil da amincin ji kuma ana nuna shi a cikin zaɓuɓɓukan ci gaba kafin canjawa.
Shin zan rasa ingancin sauti idan na canza daga MOV zuwa AMR?
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Idan AMR ba'a rasa shi ba (WAV, FLAC), za'a kiyaye duk wani misali na sauti na asali daidai. Idan AMR yana da asara (MP3, AAC, OGG, Opus), codec ɗin AMR zai sake ƙunsar — a dacewa 192 kbps wannan yana da haske ga kusan dukkan kayan asali.
Shin an fitar da AMR yana riƙe da ƙimar misali na asali?
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Da ƙa'idoji na, na'am — wani waƙoƙin sauti na 48 kHz cikin MOV zai zama 48 kHz cikin AMR. Idan kana buƙatar 44.1 kHz (CD-quality compatibility) to maɓallin saukar da ƙimar misali na ci gaba zai kula da sake-saukar da misali da sifar inganci mai girma (ba da wasu kayan aiki na aliasing ba).
Shin zan iya fitar da sauti daga fayiloli masu yawa MOV zuwa AMR cikin wani bangare guda?
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Na'am — ka saka wata ƙuƙwalwar fayiloli MOV cikin kuma mu fitar da sauti cikin daidaito. Masu amfani da Premium suna samun ma'aikata masu daidaito da yawa kuma babu iyaka ga girman fayil; a kan ƙungiya mai fayiloli 50 wannan shine bambanci tsakanin sakan 90 da minti 8.
Za'a yi alaƙa da fayil AMR da suna / mai waƙa / alƙawari?
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Idan fayil MOV yana da sashe ko kuma metadata na ruwa (wanda ake amfani dashi a cikin DVD rips, podcasts, bidiyo na kiɗa), za mu kwafe fannoni na mai waƙa / suna / alƙawari cikin ƙofar AMR. Manyan MOV masu ba da alama ba su samar da AMR ba da alama — amfani da mai sarrafa alama (Mp3tag, Picard, MusicBrainz) bayan haka idan alama mai yawa tana da muhimmanci.
Da yawa lokaci ake buƙata don fitar da AMR daga fayil MOV?
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Fitar da sauti yana da sauri fiye da sake-saukar da bidiyo - a kan 5-15% na lokacin ma'anar. 1-hour MOV → AMR ya ƙare cikin minti 3-9 akan hanyar da aka saba; bidiyo mai minti 5 ya ƙare cikin minti daya.
Shin zan iya fitar da wani ɓangare na sauti na MOV kamar AMR?
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Ba a cikin wannan mataki ba — fitar da sauti mai cikakke kamar AMR farko, sa'an nan kuma amfani da /audio-trim/ don cire sashen. Hanyar matakai biyu tana da sauri fiye da aiki mai haɗawa kuma tana ba ka damar gani na gaba na wakar da aka fitar kafin a cire ta.
Shin fayil ɗin MOV na sirri ne yayin fitar da sauti?
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Ya - irin wannan tsari na sirri kamar kowane canji a kan shafin: ma'aikata masu tsare-tsaren, cirewa cikin minti, babu nazarin mutum na abun ciki na sauti ko bidiyo. Ka duba /privacy/.
Me yasa fayil ɗin AMR na da kurakurai masu zafi?
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Matsayin da ke nuna baccin da ke faruwa kusan ko da yaushe yana nufin fayil ɗin MOV yana da tsarin sauti mai layuka da yawa (waƙoƙin sharhi, yarukan dabam, backchannels na surround) kuma mun zaɓi maɓuɓɓugar da ta ɓace. Yi amfani da zaɓin "maɓuɓɓugar sauti" na ci gaba don zaɓar maɓuɓɓugar 0, 1, da dai sauransu, ko kuma sake-mux duk maɓuɓɓugar zuwa wani abin da ke da layuka da yawa AMR idan AMR ya goyi bayan shi.
Shin an iya fitar da AMR cikin stereo, mono, ko kuma 5.1?
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An kiyaye tsarin gidan rediyo daga MOV bisa diff — 5.1 MOV na samar da 5.1 AMR inda codec ke goyon baya (AAC, FLAC, OGG, Opus). Ka sanya stereo ko mono tare da zaɓin gidan rediyo-downmix; mai amfani ga ayyukan podcast ko wasa da bandwidth mai ƙaranci.
Shin an fitar da AMR zai iya wasa a kan iPhone, Android, ko kuma na'urar stereo ta mota?
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MP3 yana wasa a duk duniya. AAC / M4A yana wasa a kan Apple da kusan duk Android. OGG / Opus yana buƙatar mai kunnawa na baya-bayan nan akan iOS amma yana wasa da kyau a cikin Chrome / Firefox / VLC. Tsarin gabaɗayan na'urar zai zaɓi AMR codec mafi yawan wasa a kan tsarinku na manufa.
AMR (Adaptive Multi-Rate) wani tsari ne na matsawa mai jiwuwa wanda aka inganta don lambar magana. An fi amfani da shi a cikin wayoyin hannu don rikodin murya da sake kunna sauti.