Mataki na 1: Loda naka WebM 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 M4A fayiloli
WebM zuwa M4A Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan fitar da sauti daga fayil WebM kamar M4A?
+
Ka shigar da fayil WebM kuma mu demuxe wakar sauti, sa'an nan kuma mu sake canza shi zuwa M4A. Ba a da wata hanyar wucewa ta biyu ga bidiyo ba kuma babu asarar ingancin da ke wucewa codec M4A.
Mene ne bitrate ɗin sauti da fayil M4A ke amfani da shi?
+
Bitrate na diff M4A 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 M4A?
+
Idan M4A format ɗin ba ta da asara (WAV, FLAC), za ka riƙe duk wani misali daidai. Idan M4A format ɗin yana da asara (MP3, AAC, OGG), to M4A 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 M4A yana riƙe da ƙimar misali na asali?
+
Da ƙa'idoji na'am — waƙa mai sauti 48 kHz cikin WebM za ta zama 48 kHz cikin M4A. 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 M4A cikin wani bangare guda?
+
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 M4A da suna / mai waƙa / alƙawari?
+
Idan fayil WebM yana da sashe ko kuma metadata na ruwa, za mu kwafe fannoni na mai waƙa / suna / alƙawari cikin ƙofar M4A. In ba haka ba fayil M4A 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 M4A daga fayil WebM?
+
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 → M4A ya ƙare cikin minti 3-9 akan hanyar samarwa.
Shin zan iya fitar da wani ɓangare na sauti na WebM kamar M4A?
+
Ba a cikin wannan kayan aiki ba — cire duk sauti kamar M4A 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?
+
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 M4A na da kurakurai masu zafi?
+
Matsayin da ke nuna baccin da ke nunawa shi ne fayil WebM yana da tsarin sauti mai waƙoƙi da yawa kuma mun zaɓi maɗaukaki mara kyau. Yi amfani da zaɓin "maɗaukaki mai sauti" na ci gaba don zaɓar maɗaukaki 0, 1, da dai sauransu, ko kuma sake-mux duk maɗaukaki zuwa cikin kwandon M4A mai waƙoƙi da yawa idan M4A ya goyi bayan shi.
Za'a iya fitar da M4A cikin stereo / mono / 5.1?
+
An kiyaye tsarin gidan rediyo daga WebM bisa diff — 5.1 WebM na samar da 5.1 M4A 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 M4A don a yi wasa a kan iPhone / Android / stereo na motar?
+
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 M4A codec wanda zai fi dacewa da wasa a kan manufarka.