WebM zuwa AAC Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan fitar da sauti daga fayil WebM kamar AAC?
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Ka shigar da fayil WebM kuma mu demuxe wakar sauti, sa'an nan kuma mu sake canza shi zuwa AAC. Ba a da wata hanyar wucewa ta biyu ga bidiyo ba kuma babu asarar ingancin da ke wucewa codec AAC.
Mene ne bitrate ɗin sauti da fayil AAC ke amfani da shi?
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Bitrate na diff AAC shine 192 kbps (mai haske ga kiɗa). Za ka iya canza shi zuwa 320 kbps (audiophile) ko 96-128 kbps (zabe / podcast / fayil mai ƙarancin girma). Za'a nuna zaɓin cikin zaɓuɓɓukan ci gaba.
Shin zan rasa ingancin sauti idan na canza daga WebM zuwa AAC?
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Idan AAC format ɗin ba ta da asara (WAV, FLAC), za ka riƙe duk wani misali daidai. Idan AAC format ɗin yana da asara (MP3, AAC, OGG), to AAC codec ɗin zai sake ƙuƙunta — ingancin yana dogara ne da bitrate da ma'anar sauti. Mun sanya diff zuwa 192 kbps wanda yake bayyananne ga kusan dukkanin abun ciki.
Shin an fitar da AAC yana riƙe da ƙimar misali na asali?
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Da ƙa'idoji na'am — waƙa mai sauti 48 kHz cikin WebM za ta zama 48 kHz cikin AAC. Idan kana buƙatar 44.1 kHz (kwarewa-CD) domin daidaituwa da masu wasa da suka fi dacewa, zaɓuɓɓukan ci gaba sun haɗa da wani zaɓi na saukar da adadin misali.
Shin zan iya fitar da sauti daga fayiloli masu yawa WebM zuwa AAC cikin wani bangare guda?
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Na'am — ka saka wata ƙuƙwalwar fayiloli WebM cikin kuma mu fitar da sauti cikin daidaito. Masu amfani da Premium suna samun ma'aikata masu daidaito da yawa; a kan ƙuƙwalwar fayil 50 wannan shine bambancin tsakanin sakan 90 da minti 8.
Za'a yi alaƙa da fayil AAC da suna / mai waƙa / alƙawari?
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Idan fayil WebM yana da sashe ko kuma metadata na ruwa, za mu kwafe fannoni na mai waƙa / suna / alƙawari cikin ƙofar AAC. In ba haka ba fayil AAC ba'a yi masa taken ba - amfani da mai sarrafa taken (Mp3tag, Picard) bayan fitarwa idan kana buƙatar wasu tags masu yawa.
Da yawa lokaci ake buƙata don fitar da AAC daga fayil WebM?
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An fi sauri wajen fitar da sauti fiye da sake-saukar da bidiyo - a kan 5-15% na lokacin da ake bukata. 1-hour WebM → AAC ya ƙare cikin minti 3-9 akan hanyar samarwa.
Shin zan iya fitar da wani ɓangare na sauti na WebM kamar AAC?
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Ba a cikin wannan kayan aiki ba — cire duk sauti kamar AAC a nan, sa'an nan kuma amfani da /audio-trim/ ko /audio-cutter/ don kakkabe sashe. Hanyar matakai biyu tana da sauri fiye da aiki mai haɗawa.
Shin fayil ɗin WebM na sirri ne yayin fitar da sauti?
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Ya - irin wannan tsari na sirri kamar kowane canji: ma'aikata masu tsare-tsaren, cirewa cikin minti, babu nazarin mutum na abun ciki. Ka duba /privacy/.
Me yasa fayil ɗin AAC na da kurakurai masu zafi?
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Matsayin da ke nuna baccin da ke nunawa shi ne fayil WebM yana da tsarin sauti mai waƙoƙi da yawa kuma mun zaɓi maɓuɓɓugar da ba ta dace ba. 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 waƙoƙi da yawa AAC idan AAC ya goyi bayan shi.
Za'a iya fitar da AAC cikin stereo / mono / 5.1?
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An kiyaye tsarin gidan rediyo daga WebM bisa diff — 5.1 WebM na samar da 5.1 AAC inda codec ke goyon baya (AAC, FLAC, OGG). Za ka iya tilasta stereo ko mono ta hanyar zaɓin gidan rediyo-downmix, mai amfani ga tafiyar aiki ta podcast.
Shin an fitar da AAC don a yi wasa a kan iPhone / Android / stereo na motar?
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MP3 ana wasa dashi duk inda. AAC / M4A ana wasa dashi akan Apple da mafi yawan Android. OGG / Opus yana buƙatar mai wasa na baya-bayan nan akan iOS. Zaɓuɓɓukan ci gaba suna nuna wani "maɓalli" na gaba wanda ke zaɓar AAC codec wanda zai fi dacewa da wasa a kan manufarka.