Iyipada MP4 si M4A

Yipada Tirẹ MP4 si M4A awọn iwe aṣẹ effortlessly

Yan awọn faili rẹ

*Àwọn fáìlì tí a ti parẹ́ lẹ́yìn wákàtí 24

Yi awọn faili to 1 GB pada lọfẹẹ, awọn olumulo Pro le yi awọn faili to 100 GB pada; Forukọsilẹ nisinsinyi

Gbigbe soke

Báwo ni a ṣe lè yípadà MP4 si M4A

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 M4A awọn faili

MP4 si M4A Awọn Ibeere Ibeere Lori Iyipada

Bií mò ṣe lè yọ àwòrán láti fáìlì MP4 lọ́wọ́lọ́wọ́ bíi M4A?

Fi fáìlì MP4 pamọ́ ki a si dá àwòrán àwòrán padà sípò, ki o si yipadá ìṣàfarawé rẹ̀ sí M4A. Kò ní ìpàsẹ̀ àwòrán kejì àti kò ní ìpàsẹ̀ ìṣàfarawé àwọn àwọn ìṣàfilọ́lẹ̀ tí kò ní.

Ìgbà bítárátì àwòrán wo ni fáìlì M4A náà lò?

Àwọn bítàrátì ìpéwọ̀n M4A ni 192 kbps (àwọ́yé fún àwọn ìranṣẹ́ orin). O lè pàtó sí 320 kbps (àkọ́kọ́) tàbí 96-128 kbps (àwòrán/pódíẹ̀tì/fáìlì kéré). Àwọn ìyàǹtò náà tí a fi pamọ́ sínú àwọn ìkúndùǹ ìṣàfilọ́lẹ̀ ìpelé láti ààyè ìṣàfilọ́lẹ̀.

Ńpa ìṣàfarawé ìṣàfarawé ìsàlẹ̀-ilà láti inú MP4 sí M4A?

If M4A is lossless (WAV, FLAC), every sample is preserved exactly. If M4A is lossy (MP3, AAC, OGG, Opus), the M4A codec recompresses — at 192 kbps this is transparent for almost all content. Recovering quality that was already gone in the MP4 source is impossible.

Does the extracted M4A keep the original sample rate?

Nípa ìpéwọ̀n, jẹ́ — àkọlé àwòrán 48 kHz nínú MP4 di 48 kHz nínú M4A. Tó bá fẹ́ 44.1 kHz (àwọn ìṣàmúlò-ètò CD) fún ìdáràn àwọn àkọlé tí a tì kọ́, àwọn ìkúndùǹ ìṣàmúlò-ètò ìṣàmúlò-ètò tí a tí a pàtó láti pàtó àwọn ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmúlò-ètò ìṣàmu

Can I extract audio from multiple MP4 files to M4A in one batch?

Ya — fi àwọn fáìlì fún àwọn fáìlì MP4 sínú àtí a fi àwòrán pamọ́ ní pàrálelèlì. Àwọn òǹlò Pro náà gba àwọn òǹlò páraleléèlì diẹ̀ sii; nínú àwọn fáìlì 50-fáìlì, yìí ní ìfarahàn láti inú àwọn ìsẹ́ẹ̀tì 90 náà sí àwọn ààyè-iṣẹ́ 8.

Ṣe fáìlì M4A náà á jẹ́ àmì-àṣírí àti àkọ́lé/àlàkọ́òrin/àlòbù?

If the MP4 container has chapter or stream metadata, we copy artist / title / album fields into the M4A container where the M4A format supports tags. Otherwise the M4A file is untagged — use a tag editor (Mp3tag, Picard) post-export for richer tags.

Ìgbà wo nínú ìṣàfihàn M4A láti inú fáìlì MP4 náà?

Ìṣàfilọ́lẹ̀ àwòrán jẹ́ ìrànwọ́ jú ìṣàfilọ́lẹ̀ àwòrán lọ́wọ́lọ́wọ́ lọ́wọ́lọ́wọ́ - bí a ṣè jẹ́ 5-15% tí ìgbà ìṣàfilọ́lẹ̀. Ogó kan MP4 -> M4A tí wọ́n pari nínú àwọn ààtòjọ-ẹ̀yàn 3-9 lórí ìṣàfilọ́lẹ̀ ìpéwọ̀n.

Ń lè yọ ààyè-iṣẹ́ tí a fi pamọ́ láti inú àwòrán MP4 láti inú M4A?

Kò nínú àtòjọ-ẹ̀yàn yìí - yọ àwòrán ìpamọ́ láti inú M4A níbẹ̀, láti sé àwọn àwọn ààyè-iṣẹ́ /àwòrán-tíkì/ tàbí /àwòrán-kúta/ láti dẹ́kú ààyè-iṣẹ́ náà. Ààyè àwọn ìtàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀yàn-ẹ̀ya

Fáìlì mì MP4 jẹ́ aládàkọ́ nígbà ìṣàfihàn àwòrán?

Ya — módélú ìdàjọ́ àìdájọ́ kan bíí gbogbo àwọn ìṣàfarawé: àwọn olùdarí, ìpàsẹ́ àìdájọ́ nínú àwọn ààyè, àwọn ààyè àìdájọ́ tí a kò fi pamọ́. Wòye /ìdájọ́/.

Kini idi ti fáìlì mì M4A ní àwọn ààyè ìtàjú?

Àwọn àwọn ààyè ìtàtì ní pàtó pé fáìlì MP4 ní àtòjọ-ẹ̀yàn àwòrán-àfàyé àti pé a tí yan ààyè àìdá. Ló àwọn àtòjọ-ẹ̀yàn-àwòrán "àwòrán-àyàyè" láti yan àwòrán 0, 1, wdg., tàbí láti pàtó àwọn ààyè àwòrán-àwòrán láti inú àwọn ààyè àwọn-àtòjọ-ẹ̀yàyé M4A tí M4A bá jẹ́ ìdáràn.

Àwọn àwọn ààtò fún M4A lè jẹ́ stereo / mono / 5.1?

Channel layout is preserved from MP4 by default — a 5.1 MP4 produces a 5.1 M4A where the codec supports it (AAC, FLAC, OGG, Opus). You can force stereo or mono via the channel-downmix option, which is useful for podcast workflow.

Ń jẹ́ pé M4A tí a yádè ní àwọn iPhone/Android/àtí àwọn kọnputá ọkọ ayọkẹlẹ?

MP3 lo ni gbogbo ibi. AAC / M4A lo ni Apple ati ni gbogbo Android. OGG / Opus nilo aagojútó tó kù jù lọ ni iOS. Àwọn ìkúndùǹ ìṣàfihàn ìṣàfihàn "apapọ" tí wọ́n ṣẹ̀dà àwọn kódékì M4A tí o lè gbà orin nípa àwọn ààyè-iṣẹ́ rẹ.