MP4 → AIFF

Yipada Tirẹ MP4 si AIFF awọn faili laiparuwo

Yan awọn faili rẹ

tabi gbé àwọn fáìlì rẹ̀ lọ́wọ́lọ́wọ́ níbẹ̀

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Gbigbe soke

Báwo ni a ṣe lè yípadà MP4 si AIFF

Igbesẹ 1: Gbe soke rẹ MP4 nípa lílo bọ́tìnì tó wà lókè tàbí nípa fífà àti ju sílẹ̀.

Igbese 2: Tẹ bọtini 'Iyipada' lati bẹrẹ iyipada naa.

Igbesẹ 3: Ṣe igbasilẹ faili iyipada rẹ AIFF awọn faili

MP4 si AIFF Awọn Ibeere Ibeere Lori Iyipada

Bawo ni mo ṣe lè yọ àwòrán àwòrán kuro nínú MP4 bí AIFF?

Fi fáìlì MP4 pamọ́, àwọn ìṣàfilọ́lẹ̀ náà á fi àgbèwọlé àwòrán pamọ́ láti inú àwọn ààyè-iṣẹ́ MP4, àtí àwọn àgbèwọlé rẹ̀ sínú AIFF. Àwọn fèrèsé vidéò náà á jẹ́ àwọn àgbèwọlé vidéò kejì, àwọn àgbèwọlé ìdárà àwọn àgbèwọlé AIFF. MP4 ni ISO/IEC 14496-14, ti a ti ṣe ni ọdun 2001 ati pe o ti wa lati ọna kika boṣewa boṣewa QuickTime ti MOV lo. AIFF ni Apple ti Audio Interchange File Format lati 1988, ti a ṣe lori kanna IFF chunk apẹrẹ bi AVI ti RIFF.

Ń lè fi àwọn àmì-ìwé àwọn ìtàn AIFF pamọ́ láti fi àwọn ìròyìn àwọn aléfòò àti àwọn ìtàn àwọn aléfòò pamọ́?

Ya, o si jẹ́ ìdáràn tí a tí kọ́ nínú MP4, tí kò ní ààyè tí a lè fi pamọ́. AIFF ní àkọ́lé, àlàrinrin, àlàbòójútó, odun, àwọn àkọ́lé àti àwọn àwòrán àwọn ààyè nínú àwọn ààyè, láti jẹ́ pé àwọn àkọ́lé àwọn orin lè fi pamọ́ nípa ìṣàfarawé nípa ìpàsẹ́ ọwọ́. AIFF ní ìṣàmúlò-ètò ìdájọ́ ìgbàpadà nípa MacOS, tí o ṣẹ́dá metadata tí o dara ju WAV tí a fi hàn lọ́wọ́, tí o si gbàwọlé nínú Logic atí Pro Tools nígbà kan.

Ńlà AIFF náà ló nínú ààyè mì àti nínú àwọn ìṣàmúlò-ètò tí a tí ìgbà lò?

Kò lè. MP4 tí a kọ́dì láti àwọn ohun gbogbo, àti àwọn àwọn aṣọ́ ìsàlẹ̀-ilà àti àwọn alariwisí tí a tí ìgbà; AIFF ní àwọn ìṣàmúlò-ètò tí a mọ́ àwọn kódékì, tí àwọn ààtòjútó àwọn aṣọ́ra-ètò tí a fi pamọ́ kò ní. Tó bá jẹ́ pé àgbèwọlé ní àwọn aṣọ́ra-ètò àti àwọn aṣọ́ra-ètò tí a lè gbè, o ní àwọn àwọn àkọ́lé tí a fi pamọ́ fún tí a bá fi pamọ́ lórí MP4. AIFF ni o tobi bi WAV ti o ni atilẹyin ti o dara ju ni inu agbaye Apple, nitorina o jẹ aṣayan ti o dara fun ikojọpọ.

Àwọn àkọlé wo ní ààyè láti yọ láti inú àwọn àkọlé mìíràn nígbà tí mò ní MP4 mìíràn?

By default stream 0 (the first audio track, usually the main mix). If your MP4 carries commentary, dubs, or descriptive audio on additional tracks, the advanced "audio stream" picker lets you pick 1, 2, 3... explicitly. The track list is shown in the upload preview so you do not pick blind.

Ìgbà wo ní fáìlì AIFF náà lò?

Àwọn bítàrátì ìpéwọ̀n AIFF ni 192 kbps (àwọ́yé fún àwọn ìranṣẹ́ orin fún àwọn ìgbọ́. Ṣàpàlẹ̀ sí 320 kbps fún àwọn àtòjọ-ẹ̀yàn àwọn aago, tàbí 96-128 kbps fún àwọn àwòrán/pódákì tí àwọn fáìlì tí o kù jù lọ nínú àwọn ìṣàfihàn. Àwọn àwọn ààyè tí kò ní ìwọ̀n AIFF (WAV, FLAC) kò ní ìfárálẹ̀ bítárátì náà, àtí wọ́n ní gbogbo àwọn ààyè ìṣàmúlò-ètò. AIFF fi PCM ti a ko ti fi papọ pamọ́ - ti a fi pọ̀ jú WAV lọ́wọ́lọ́wọ́ nínú Apple, pẹlú bítìnì-nínú-bítìnì-ìfẹ́.

Tí mò bá lọ láti MP4 sí AIFF, àwọn ìṣàmúlò-ètò ìfẹ́fẹ́ àwòrán mìí ń kù?

If the AIFF format is lossless (WAV, FLAC, ALAC), every original sample is preserved. If AIFF is lossy (MP3, AAC, OGG, Opus), the codec recompresses — at 192 kbps the difference is inaudible for most content; at 96 kbps you may hear cymbals or sibilants softening. The MP4 container has no influence on this — only the codec settings matter.

Does the extracted AIFF keep the MP4 sample rate?

Àwọn ìpéwọ̀n jẹ́ - 48 kHz àwòrán MP4 di 48 kHz àwòrán AIFF, 44.1 kHz di 44.1 kHz. Tí o bà fẹ́ lágbára àwọn ààyè ìsàmúlò-ètò láti bára (gẹ́gẹ́ bíi 96 kHz studio masters to 44.1 kHz CD-quality AIFF) àwọn ààyè ìsàmúlò-ètò ìsàmúlò-ètò náà ǹlá àwọn ààyè ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmúlò-ètò ìsàmu

Ń lè yọ àwọn fáìlì orin AIFF láti inú àwọn fáìlì MP4?

Ya — fi pánẹ́ẹ̀lì fáìlì MP4 lọ́wọ́lọ́wọ́ nínú ààyè ìṣàfihàn náà àtí a tí n pánẹ́ẹ̀lì ìṣàfihàn. Premium náà gba àwọn olùdarí ìṣàfihàn náà diẹ́ sii; nínú àwọn fáìlì 100-fáìlì (àwọn ìṣàmúlò-ètò orin-àwòrán) yìí ní ìfaràǹdégbèrè laarin àwọn ìsẹ̀tó 90 náà àtì àwọn ààyè 8.

Ìgbà wo nínú tí a bá gbá AIFF láti inú aago-1 MP4?

Audio demux + transcode runs much faster than video re-encoding - usually 5-15% of source duration. A 1-hour MP4 -> AIFF finishes in 3-9 minutes on the standard pipeline. If the AIFF codec matches the source codec already in the MP4 (common for AAC inside MKV / MP4), it is a pure remux and runs in seconds.

Fáìlì AIFF náà ní àwọn àmì-ìwé àwọn ìṣàfarawé àwọn àwọn àkọlé?

Tí fáìlì MP4 bá fi àwọn ààtò metadata ìjánu-ìṣàmúlò-ètò pamọ́ (ólùgbà, àkọlé, àlẹ́bù), a kọ́ àwọn ààyè náà sínú àwọn ààyè AIFF tí ì̀wọ̀n náà bá dá àwọn àmì-ìwé pamọ́. ID3v2 (MP3), àwọn àkọlé Vorbis (OGG, FLAC), àwọn àtòjọ-ẹ̀yàn MP4 (AAC / M4A), àwọn àpàtò RIFF INFO (WAV) ní a kọ̀ ní gbogbo wọn. Tí a kò fi àwọn àtòjọ-ẹ̀yàn pamọ́ MP4 ní a fi AIFF pamọ́ — lo Mp3tag tàbí Picard ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà ìgbà.

Is my MP4 private during audio extraction?

Ya - àwọn ààyè ìdàjọ́ àìdájọ́ tí a lò nínú ìṣàfarawé. Àwọn oríṣí MP4 àti àwọn ìjáde AIFF ní a tí n ṣẹ́gun nínú àwọn olùkọ́ àti àwọn ààyè àìpàlẹ̀. A kò fẹ́, fipamọ́, tàbí fi pọ̀ nínú àwọn ààyè. Wò /privacy/.

Kini idi ti mò ti ní àwọn ààyè ìtàjú àti àwọn àwòrán àìdájú nínú AIFF mìí?

Almost always a stream-index mismatch — your MP4 had a multi-track audio layout and we extracted the wrong stream (e.g. the silent descriptive audio track instead of the main mix). Re-run with the advanced "audio stream" option set to the right index, or pick "all streams" to extract every track as a separate AIFF file.