Mataki na 1: Loda naka MP4 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 WAV fayiloli
MP4 zuwa WAV Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan fitar da sauti daga fayil ɗin MP4 na kamar WAV?
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Ka shigar da fayil MP4 kuma mai maida zai demuxes saurin sauti, sa'an nan ya sake shi zuwa WAV. Babu wata hanyar bidiyo ta biyu - ana cire wakar gani da wuri don haka fitarwa zai fi sauri fiye da sake-saukar da shi gaba ɗaya.
Mene ne bitrate ɗin sauti da aka fitar da WAV ke amfani da shi?
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Bitrate na diff ga WAV mai rasawa shine 192 kbps, wanda yake bayyananne ga kiɗa. Za ka iya canza shi zuwa 320 kbps (audiophile) ko 96-128 kbps (zabe / podcast / fayil mai ƙarancin girma). An nuna jerin bitrate a cikin zaɓuɓɓukan ci gaba kafin ka danna canjawa.
Shin zan rasa ingancin sauti idan na canza daga MP4 zuwa WAV?
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Idan WAV ba'a rasa shi ba (WAV, FLAC), za'a kiyaye kowace misali daidai. Idan WAV ana rasa shi (MP3, AAC, OGG, Opus), codec ɗin WAV zai sake ƙunsar sauti na asali — a 192 kbps sakamakon zai zama bayyananne ga kusan dukkan abun ciki. Zuwa da rashin asara → babu asara ba zai sake komai ba daga bayanin da aka manta da shi.
Shin sauti WAV na dauke da yawan misali na asali?
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Ta ƙayyadadden, na'am — 48 kHz sauti cikin MP4 naka zai zauna 48 kHz cikin fitarwa WAV. Don CD-burning ko na'urar wasa ta gargajiya za ka iya rage misali zuwa 44.1 kHz ta hanyar saukar da jerin adadin misali; mai sake nazarin misali yana da inganci mai girma na SoX.
Shin zan iya fitar da sauti daga fayiloli masu yawa MP4 zuwa WAV cikin wani bangare guda?
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Na'am — ka bar wata ƙuƙwalwar fayiloli MP4 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 minti biyu da minti goma.
Za'a yi alaƙa da WAV da metadata na suna / mai waƙa / alƙawari?
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Idan MP4 na da sashe ko kuma metadata na ruwa, za mu kwafe shafuka na suna / mai waƙa / alƙawari cikin ƙofar WAV. In ba haka ba, WAV zai fito ba tare da wata alamar ba — amfani da mai sarrafa alamar (Mp3tag, Picard) bayan fitarwa domin samun alamar da ta fi ƙarfi.
Menene lokacin da ake buƙata don fitar da sauti WAV daga MP4 na awa 1?
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Audio demux + encode ne mai sauri - a kan 5 zuwa 15% na lokacin da ake bukata. 1-hour MP4 → WAV ya ƙare cikin kusan minti 3 zuwa 9 a kan hanyar samarwa; Premium parallelism na rage wannan har zuwa aiki na bangare.
Shin zan iya fitar da wani ɓangare na sauti na MP4 kamar WAV?
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Ba a cikin wannan kayan aiki kai tsaye ba — cire sauti mai cikakke kamar WAV, 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 kuma tana ba ka daidaitaccen kulawa na mataki na siffar tarwatsa.
Shin fayil ɗin MP4 na sirri ne yayin fitar da sauti?
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Na'am - irin wannan tsari na sirri kamar kowane canji: ma'aikata masu tsare-tsaren, babu nazarin mutum, cirewa ta atomatik cikin minti na kammalawa. Tagan tsare-tsaren bayani a kan /privacy/.
Me ya sa fayil WAV na da kurakurai na ɓoyewa inda MP4 na da sauti?
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Kafin ko da yaushe akwai zaɓin maɗaukaki-maɗaukaki: MP4 yana da waƙoƙin sauti da yawa kuma mai demuxer ya zaɓi wani maɗaukaki maras amfani ko mai taimako. Yi amfani da mai zaɓar "waƙoƙin sauti" na ci gaba don zaɓar maɗaukaki 0, 1, 2 da bayyananne, ko kuma a yi niyya ga wani WAV mai ƙonawa wanda ke goyon bayan fitarwa mai waƙoƙi da yawa (FLAC, OGG).
An kiyaye tsarin gidan rediyo daga MP4 bisa diff — 5.1 MP4 na samar da 5.1 WAV idan WAV codec na goyon baya shi (AAC, FLAC, OGG, Opus). Zaɓin haɗe-haɗe na ƙasa yana sanya stereo ko mono — mai amfani ga ayyukan podcast inda waƙoƙin surround ke kashe bitrates.
Shin an fitar da WAV zai iya wasa a kan iPhone, stereo na motar, da Sonos?
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MP3 na wasa duk inda yake da haɗarin rashin daidaituwa. AAC yana wasa akan Apple, mafi yawan Android, da Sonos. OGG / Opus yana buƙatar mai wasa na baya-bayan nan akan iOS. Maɓallin ƙayyadadden ƙayyadadden na'urar yana zaɓar WAV codec wanda zai fi dacewa da wasa akan kayan aikinka na manufa.