Mataki na 1: Loda naka M4A 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 AIFF fayiloli
M4A zuwa AIFF Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan canza sauti daga M4A zuwa AIFF ba tare da asarar inganci ba?
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Ka shigar da fayil M4A kuma mai maidamu zai zaɓi AIFF haɗin codec / bitrate wanda ya dace da ma'anar. Matsayin da ba a rasa (AIFF = WAV / FLAC / ALAC) zai kiyaye duk misali; matsayin da aka rasa (AIFF = MP3 / AAC / OGG) yana da diff zuwa 192 kbps wanda yake bayyananne ga littattafan sauti da mafi yawan kiɗa.
Me yasa wasu daga cikin fayilolina M4A ba su canja ba?
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DRM. An rufe wani ɓangare na M4A fayiloli ta wurin shagon ko kuma kayan aikin da suka fitar da su, kuma ba za'a iya rufe sauti mai rufewa ta hanyar wani mai musanya ba. Duk wani abu da ka rufe kaɗai, ka riƙe, ko ka saya ba tare da tsaro ba zai canza kamar yadda ya kamata; sayen da lasisi ba zai yi haka ba. M4A ɓoye biyu abubuwa daban-daban a bayan daya zurfi - lossy AAC da lossless ALAC - da non-Apple kayan aiki goyon baya ne ba daidai ba.
Shin AIFF zai yi wasa a cikin motar ta ko a kan kayan aiki na daɗaɗɗe?
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A mafi yawan lokuta ba haka ba. M4A ana decode da duk wani abu, ciki har da ƴankunan kafa na mota da masu wasa da suka wuce; AIFF yana bukatar manhajar da ke sani da codec, wanda na'urorin haɗi na musamman ba su da shi. Idan maɓallin shine na'urar stereo ta mota ko mai wasa mai saukewa, wannan yana da hujja mai ƙarfi don zama a kan M4A. AIFF ne kamar yadda girma kamar WAV da mafi muni goyon baya a waje na Apple duniya, don haka shi ne wani zaɓi mara kyau ga raba.
Mene ne bitrate ɗin da fayil AIFF ke amfani da shi?
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Diflomasiyya ita ce 192 kbps ga mai rasa AIFF; wucewa-ta-tafi ga mara rasa AIFF. Ka sake zuwa 320 kbps ga masu sauraro ko 64-96 kbps ga littattafan sauti na magana (mai haske ga magana, yana rage girman fayil da rabin).
Shin tafiya daga M4A zuwa AIFF za ta rage ingancin sautina?
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Idan M4A yana da asara kuma AIFF ba da asara ba ne (misal. MP3 → WAV), fayil ɗin AIFF bai fi kyau ba fiye da M4A — ba za ka iya dawo da bayanai da aka riga aka jefa ba. Idan M4A yana da asara kuma AIFF ba da asara ba ne, ka yi tsammanin codec ɗin AIFF zai sake ƙunsar; a 192 kbps wannan yana da haske ga mafi yawan abun ciki.
Shin mai canza M4A zuwa AIFF yana riƙe da ID3 / metadata tag?
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Na'am — suna, mai waƙa, alƙawari, shekara, lamba na waƙa, zane na alƙawari, da kuma alamomin sashe (masu muhimmanci ga littattafan sauti) ana karanta su daga M4A kuma ana rubuta su cikin ƙofar AIFF inda siffar AIFF take goyon bayan alamomin. Tsarin littattafan sauti na M4B yana tafiya-zuwa-zuwa cikin fitarwa ta M4B da AAX → M4B.
Na'am — ka bar wata maɓalli na M4A fayiloli cikin kuma mu yi aiki da su a cikin daidaito. Premium yana da ma'aikata masu daidaito da yawa kuma babu iyaka ga girman fayil, don haka fayil mai fayiloli 500 na iya kammala cikin mintina maimakon mintina da dama.
A bisa diff, na'am (48 kHz M4A → 48 kHz AIFF). Idan kana buƙatar rage misalin don daidaituwa (misal. 96 kHz → 44.1 kHz don ƙona CD) zaɓin ƙimar misali mai zurfi yana yin wannan tare da sake misalin da inganci mai girma.
Yes — the loudness-normalize option applies ITU-R BS.1770 / EBU R128 normalization to the AIFF output, targeting -14 LUFS (streaming standard), -16 LUFS (podcast standard), or -23 LUFS (audiobook standard). Useful when batch-converting tracks with varying mastering levels.
Shin AIFF zai yi wasa a cikin shirin ayuka na stereo na motar / iPod / littafin sauti?
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MP3 yana wasa a duniya. AAC yana wasa a kan Apple, mafi yawan Android, Sonos. FLAC yana wasa a kan Sonos da Android, mafi kyau a kan iPods na daɗewa. Littattafan sauti na M4B suna wasa tare da saukar da sashe a kan iOS Littattafai, Audiobookshelf, da Smart Audiobook Player. Zaɓuɓɓukan ci gaba sun haɗa da presets na na'urar.
Shin fayil M4A na sirri ne yayin canjawa?
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Na'am — an yi aiki da fayilolin da aka tura M4A a cikin masu aiki masu tsalle-tsalle kuma an share su cikin mintina. Ba za mu taba wasa, adana, ko raba abun cikin sauti ba. Wannan yana da muhimmanci musamman idan ana aiki da labarairu na littattafai masu sauti na mutum.
Menene lokacin da ake buƙata don canja littafin sauti na sa'o'i 10 daga M4A zuwa AIFF?
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Re-mux na codec-daidai: sakan 10-30. Re-encode zuwa wani codec daban: a kan 10-20% na lokacin ma'ana, don haka littafin sauti na awa 10 zai ƙare cikin minti 60-120. Markers na sashe suna tsira daga tafiyar-zuwa-zuwa kuma su raba da kyau.
