2Sankhani mmene zovuta kuti squeeze: zolinga bitrate, ndi optionally mono kapena pansi sampling rate pamene kukula ndi zofunika kwambiri kwa inu kuposa fidelity.
3Kuyamba ntchito ndi kulola ogwira ntchito re-kupaka wapamwamba; wanu oyambirira si nthawi zonse anasintha m'malo.
4Poyerekeza ndi kukula kwatsopano ndi mtundu wachibadwa, kenako ndikutsitsa fayilo ya M4A yosinthidwa.
Kuchepetsa M4A Mafunso Ofala
Kodi Kuchepetsa M4A imapanga fayilo yaying'ono?
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Concretely, stream imasinthidwa ndi kusinthidwanso pa bitrate yotsika, yomwe ndi yoyamba yowonongeka yoyamba yoyamba - choncho sankha bitrate yoyenera nthawi imodzi, pitani mozungulira, ndipo onetsetsani kuti muli ndi mtundu woyamba ngati mungafune kubwezeretsa pambuyo pake. Nothing about it depends on you installing software: the job runs server-side and hands back a finished file.
Kodi ndi ziti zosafunikira zomwe fayilo yanga idzalandira?
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Izi zimasankhidwa ndi zinthu ndi bitrate mukufuna, si ndi chida. Chilankhulo, podcasts ndi sparse akuchitira zolemba adzakhala oyera pa bitrate pansi ndi kugwa kwambiri; zolemba zolimba, mapemphero ndi cimbales ayenera kwambiri kuti apulumuke intacts. Kudula m'mphepete mwa bitrate pafupifupi kugawa ½ ya fayilo, ndi kutengera mawu olankhula kulemba kwa mono kugawa ½ yakenso.
Kodi mtundu wa fayilo yanga umasintha kuchuluka kwa ndalama zomwe ndingapulumutse?
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Chotero kwambiri. M4A ndi MP4 chidebe kunyamula AAC kapena ALAC audio - default kwa iTunes ndi Apple Music owona. Izi zimatsimikizira kuti pali ma headroom omwe alipo komanso ngati kupulumutsa kumakuwononga chilichonse m'chilungamo.
Kodi pali chinachake chokhacho cha M4A chomwe ndingadziwepo mukadzaza?
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Yes — an.m4a angachite AAC kapena ALAC, choncho lossy ndi lossless owona kugawana m'mphepete mwake ndi ayenera kufotokoza mbali ndi kafukufuku. Ndikofunika kudziwa kuti musanayambe kulemba pazomwe mungafunensonso.
Kuzizira wapamwamba chimodzimodzi mobwerezabwereza. Kawirikawiri pa lossy mtundu ndi chitukuko chatsopano cha kuwonongeka ndi kupulumutsa kuchepetsa pamene kuwonongeka kumawonjezeka. Pitani kuchokera ku asalowe ku cholinga chanu m'njira imodzi, ndipo kusunga asalowe.
Kodi ndikufuna chiyani, ndipo ndingayang'ane bwanji kusiyana kwa ndalamazo?
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Fayilo imodzi yozizira pa input, pa bitrate yomwe mumasankha kuposa kukhazikitsidwa koyambirira. Ngati ndi yayikulu kwambiri, kujambula mawu olankhula ku mono kapena ku sampling rate yotsika imachita zambiri kuposa kuchotsa bitrate.
Kodi ndingapeze chiyani pa Kuchepetsa M4A?
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MP3, AAC, M4A, OGG, Opus ndi WMA ndi lossy codecs anachita mogwirizana ndi, ndipo lossless zigawo (WAV, FLAC, AIFF) angapite mu chimodzimodzi batani. The codec ndi anayesa kuchokera mtsinje, kotero osati bwino anatchedwa fayilo akhoza ntchitobe.
Kodi pali malire a kukula kwa fayilo pa Kuchepetsa M4A?
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Inde: maakaunti aulere amapanga ma audio mpaka ku 200 MB pa fayilo, zomwe pazofunikira za bitrates ndi nthawi zambiri zamatabwa; ffmpeg imachita decoding ndi encoding, mofanana ndi momwe zingakhalire pa desktop.Izi ndi zowonjezera kwambiri patsambalo pambuyo pa kanema, ndipo ntchito ya audio imakhala yosatheka.
Kodi Kuchepetsa M4A idzachepetsa mtundu wa M4A audio files wanga?
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A lossy fayilo kale anachotsa mfundo nthawi imodzi, ndi re-encoding anachotsa zambiri - kuti ndi chitukuko kuwonongeka ndi kuti si undo. Kumene ntchito angathe kukwaniritsidwa ndi kukopera encoded mtsinje kuposa re-encoding izo, kuti ndi zimene zimachitika, ndi audio amabwerera bit-identical.
Yai. Upload set ndi iwo kusonkhana mofanana ndi zoikamo zofanana, zomwe ndi njira yothandiza kusamalira podcast series kapena album kuposa kubwereza ntchito ndi m'manja.
Kodi tags ndi cover art zimatha kupulumuka?
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Ndiyo. ID3, Vorbis maganizo ndi MP4 metadata atoms ndi kuikidwa, kuphatikizapo zithunzi zamasamba, kotero kuti fayilo yothamangitsidwa ikhoza kugawidwa bwinobwino mu laibulale ya nyimbo. ReplayGain mfundo ndi kuwerengedwanso m'malo mwa kukopitsidwa, chifukwa cha kale ndi yoipa kuposa palibe.
Kodi Kuchepetsa M4A imawononga chilichonse?
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No. Kuchepetsa M4A ndi ufulu popanda akaunti ndipo sawonjezera mawu opanda madzi kapena mawu olankhula kumapeto kwa izi. Kutsitsa kwanu kumachotsa ntchito za ogwira ntchito pambuyo pomaliza ntchito.
