MP4 → WMA

Sinthani Yanu MP4 ku WMA mafayilo mosavuta

Sankhani mafayilo anu

kapena dinani ndi kuchotsani mafayilo anu apa

Free plan: 1 Kusinthana kwa maola · Go Unlimited →

Sinthani mafayilo okwana 1 GB kwaulere, ogwiritsa ntchito Pro amatha kusintha mafayilo okwana 100 GB; Lowani tsopano

Kukweza

Momwe mungasinthire MP4 ku WMA

Gawo 1: Kwezani yanu MP4 mafayilo pogwiritsa ntchito batani lomwe lili pamwambapa kapena pokoka ndi kugwetsa.

Gawo 2: Dinani batani la 'Convert' kuti muyambe kusintha.

Gawo 3: Tsitsani pulogalamu yanu yosinthidwa WMA mafayilo

MP4 ku WMA Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingagwiritse ntchito bwanji audio kuchokera ku fayilo yanga ya MP4 ngati WMA?

Kutsitsa fayilo ya MP4 ndipo wosintha amasintha mpweya wa audio, kenako amasintha ku WMA. Palibe gawo lachiwiri la kanema - mndandanda wowoneka umathetsedwa mofulumira, chifukwa chake kutulutsa ndi kosavuta kuposa kubwezeretsa kwathunthu. MP4 ndi ISO / IEC 14496-14, standardized mu 2001 ndi anachokera pamodzi QuickTime katundu layout MOV ntchito. WMA ndi Windows Media Audio, yankho Microsoft MP3, anayamba mu 1999 ndi anasonkhana ndi aliyense Windows kukhazikitsa wa nthawi imeneyi.

Kodi kusinthira MP4 ku WMA ndi gawo lachiwiri la kutsitsa kwa lossy?

Ndikukhulupirira kuti ndinu oyenera, ndipo ndibwino kuti mupange. Mafomu awiriwa ndi owonongeka, choncho WMA encoder akuchita ntchito kuchokera ku audio yomwe yakhala ikuyenda mwa psychoacoustic pass, ndipo masankho ake oyamba amapanga gawo loyamba. Pa 192 kbps kapena pamwambapa, zotsatirazi ndizosawoneka bwino kwa ambiri owerenga. Ngati muli ndi master yopanda kuwonongeka, kulemba koyamba kwa WMA kuchokera ku yomwe imalepheretsa kupitanso koyamba. Zikuoneka kuti pafupifupi aliyense MP4 m'munda ndi H.264 kanema ndi AAC audio; chidebenso mwalamulo ali HEVC, AV1 ndi VP9. WMA ndi lossy mwa default, mu ASF chidebe, ndi lossless ndi mawu-optimised mitundu yomwe ndi yosadziwika anakumana.

Kodi WMA idzasewera m'galimoto yanga kapena pa hardware yakale?

Nthawi zambiri sichoncho. MP4 imasinthidwa ndi chilichonse, kuphatikizapo magalimoto agalimoto ndi osewera okalamba; WMA amafunikira mapulogalamu omwe amadziwa codec, omwe nthawi zambiri amakhala ndi zida zosagwirizana. Ngati malo osankhidwa ndi stereo yagalimoto kapena wosewera wonyamula, ndiye kuti ndi chitsimikizo cholimba chokhala pa MP4. WMA ndi unsupported pafupifupi kulikonse kunja kwa Windows, ndi zaka WMA owona angagwiritsidwe ntchito DRM kuti amaletsa kusintha kwathunthu.

Kodi bitrate ya audio yomwe yatulutsidwa ndi WMA imagwiritsa ntchito?

Kusintha kwa bitrate koyambirira kwa WMA ndi 192 kbps, zomwe ndi zosawoneka bwino kwa nyimbo. Mukhoza kusintha kwa 320 kbps (audiophile) kapena 96-128 kbps (wokamba / podcast / fayilo yaying'ono). Kusintha kwa bitrate kumawonekera m'masankho owonjezera pazenera mukadina kusinthitsa.

Kodi ndidzataya mtundu wa audio kuchokera ku MP4 kupita ku WMA?

Ngati WMA ndi yopanda kuwonongeka (WAV, FLAC), zonse zosawerengeka zimasungidwa moyenera. Ngati WMA ndi yopanda kuwonongeka (MP3, AAC, OGG, Opus), codec ya WMA imabwezeretsa kuwonongeka kwa mavidiyo - pa 192 kbps zotsatira zake ndi zosawoneka bwino kwa zinthu zonse. Kusintha kwa kuwonongeka → yopanda kuwonongeka sikubwezeretsa zinthu zomwe zatulutsidwa kale.

Kodi WMA ya audio imasunga kuchuluka kwa sampling?

Mwa default yeah — 48 kHz audio mu MP4 yanu imakhala 48 kHz mu WMA output. Kuti mugwiritse ntchito CD- burning kapena legacy player mungathe kulowetsa mpaka 44. 1 kHz pogwiritsa ntchito dropdown ya sampling- rate; resampler ndi yamphamvu kwambiri ya SoX- grade.

Kodi ndingagwiritse ntchito ma audio kuchokera ku MP4 mafayilo ambiri kupita ku WMA m'modzi?

Yesani - chotsani fayilo ya MP4 ndikupanga audio mofanana. Ogwiritsa ntchito Premium amalandira ogwira ntchito ambiri mofanana; pa fayilo ya 50-file iyi ndi kusiyana pakati pa maola angapo ndi maola asanu ndi awiri.

Kodi WMA idzaphatikizidwa ndi metadata ya mutu / woimba / album?

Ngati MP4 imathamanga ma metadata a gawo kapena ma stream, timakopera masamba a mutu / woimba / album ku WMA. Ngati sichoncho, WMA imatuluka osasindikizidwa - kugwiritsa ntchito wolemba tag (Mp3tag, Picard) pambuyo pa kutumiza kunja kwa tagging yochuluka.

Kodi ndi nthawi yayitali bwanji kuti mutenge WMA audio kuchokera ku 1-hour MP4?

Audio demux + encode ndiyabwino - nthawi zambiri 5 mpaka 15% ya nthawi yoyambira. 1-hour MP4 → WMA imatha m'maola 3 mpaka 9 panthawi yoyenera; Premium parallelism imachepetsa izinso kwa ntchito za batch.

Kodi ndingagwiritse ntchito gawo limodzi la MP4 audio ngati WMA?

Sichigwira ntchito mwanjira imeneyi — chotsani audio yonse ngati WMA, kenako mugwiritse ntchito /audio-trim/ kapena /audio-cutter/ kuti muchepetse gawo. Mtundu wa njira yokhala ndi ma step awiri umakhala wofulumira kuposa ntchito yophatikizika ndipo umakupatsani kuwongolera bwino kwa ma waveform.

Kodi fayilo yanga MP4 ndi yapadera pamene ndikuchotsa audio?

Inde - mtundu wofanana wa kuteteza deta monga pazosintha zonse: ogwira ntchito osiyana, palibe kuyankha kwa munthu, kuchotsa kwachidziwikire m'maola ochepa pambuyo pa kumaliza.

N'chifukwa chiyani fayilo ya WMA ili ndi zitseko zosadziwika pomwe MP4 ili ndi mawu?

Pafupifupi nthawi zonse kusankhidwa kwa ma streams opanda pake: MP4 anali ndi ma tracks ambiri a audio ndipo demuxer anasankha ma streams osatsegula kapena othandizira. Pezani "audio stream" wosankha kuti musankhe ma streams 0, 1, 2 mwatsatanetsatane, kapena kulenga WMA wokhala ndi ma tracks ambiri (FLAC, OGG).