MP4 → WAV

Guqula Eyakho MP4 ukuba WAV iifayile ngokulula

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Iyalayisha

Indlela yokuguqula MP4 ukuba WAV

Inyathelo 1: Layisha eyakho MP4 iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

Inyathelo lesi-2: Cofa iqhosha elithi 'Guqula' ukuze uqalise ukuguqula.

Inyathelo lesi-3: Khuphela i-converted yakho WAV iifayile

MP4 ukuba WAV Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyikhupha njani i-audio kwifayili yam MP4 njenge WAV?

Layisha phezulu ifayili MP4 kwaye umguquli ukhupha umsinga wesandi, emva koko uguqula ikhowudi ibe yi WAV. Akukho sibini sevidiyo esidlulayo - irekhodi elibonakalayo lilahliwe ngokuzenzekelayo ngoko ke ukutywina kukhawuleza kakhulu kune-encoding epheleleyo. I-MP4 yi-ISO/IEC 14496-14, imiselwe ngo-2001 kwaye ivela kwibhokisi yobeko lwe-QuickTime efanayo ne-MOV esetyenziswa. I-WAV yiMicrosoft ne-IBM RIFF-based audio container ukusukela ngo-1991, kwaye yiyo into eninzi yonke i-audio interface ne-DAW ibhala kwirecord.

Ingaba ukutshintsha i-MP4 ukuya kwi-WAV kunyusa umgangatho wesandi?

Hayi, kwaye ixabiso lokuba mnyama: akukho nto ingayenza. I MP4 sele ishiye inkcukacha ngexesha lokushicilela kwayo, kwaye ukujika okuseleyo kwi WAV engalahliyo igcina ngokuchanekileyo oko - akukho ngaphezulu. Ifayile ifumana amaxesha amaninzi amakhulu kwaye ithetha ngokufanayo. Ihlala ihamba kakuhle phambi kohlela, kuba WAV ayizukongeza udidi lwesibini lweeartefacts xa urhweba ngaphandle. I-WAV yifomati efanelekileyo yohlela, ulawulo nokugcina, kuba ingaphinde ikhowudiwe nanini na ngaphandle kokudibanisa iindidi. I-MP4 ixhasa kuphela ifomati enye ethandwayo yesihloko esingaphantsi (mov_text), kwaye i-multi-track audio ayithembeki ngaphandle kwee-desktop players.

I-WAV ekhutshiweyo isebenzisa i-bitrate yesandi ethini?

I-bitrate emiselweyo ye-lossy WAV yi-192 kbps, ebonisa ngaphaya kwengoma. Ungayicima i-320 kbps (audiophile) okanye i-96-128 kbps (ilizwi / ipodcast / ifayili encinci). I-bitrate esuka ezantsi ivela kwiinketho eziphambili phambi kokuba ucofe uguqule.

Ingaba ndiya kulahlekelwa umgangatho wesandi xa ndisuka kwi-MP4 ukuya kwi-WAV?

Ukuba WAV ayilahleki (WAV, FLAC), isampuli nganye igcinwa ngokuchanekileyo. Ukuba WAV ilahlekile (MP3, AAC, OGG, Opus), i-WAV codec iphinda icinezele umbhalo wesandi - kwi-192 kbps isiphumo sicacile kuzo zonke iziqulatho. Ukuya kwi-lossy → ayilahleki akuzukubuyisela iinkcukacha ezisele zilahlekile. I-WAV igcina i-PCM engacinezelwanga emnyama - yonke isampuli igcinwa ngokuchanekileyo, nakweyiphi na ubunzulu be-bit kunye nesantya sesampuli esithathwe.

Ingaba i-WAV yesandi igcina i-sample rate yangaphambili?

Ngokungagqibekanga ewe — 48 kHz yesandi kwi MP4 yakho ihlala i-48 kHz kwi-WAV yemveliso. Ukukhupha i-CD okanye ukulungelelanisa umdlali okhoyo ungakhupha i-sample ukuya kwi-44.1 kHz nge-sample-rate dropdown; i-resampler ikwi-SoX-grade esezingeni eliphezulu.

Ndingayikhupha i-audio kwiifayili ezininzi MP4 kwi WAV kwiqela elinye?

Ewe — susa isiqulathi seefayili ze MP4 kwaye sikhuphe isandi ngokuthe tye. Abasebenzisi abaphezulu bafumana abasebenzi abathe tye abaninzi; kwifayili ye-50-batch le yinto eyahlukileyo phakathi kwemizuzu emibini kunye nemizuzu emihlanu.

Ingaba i-WAV iya kuphawulwa ngesihloko / umculi / i-metadata ye-albham?

Ukuba i MP4 ithatha isahluko okanye i-metadata yokuhamba, siyakopa isihloko / umculi / imihlaba ye-albham kwi WAV isiqulathi seefayili. Ukuba akunjalo, i WAV iza ngaphandle ingaphawulwanga — sebenzisa umhleli we-tag (Mp3tag, Picard) emva korhwebo ngaphandle lokufaka i-tag eninzi.

Ithatha ixesha elingakanani ukutsala i-WAV yesandi ukusuka kwi-MP4 yeyure?

I-audio demux + encode ikhawuleza - iqhelekileyo 5 ukuya kwi 15% yobude bomthombo. I-1-iyure MP4 → WAV igqiba kwimizuzu emithathu ukuya kwi 9 kwindlela eqhelekileyo yokuhambisa; i-Premium parallelism icima oku ngaphezulu kwimisebenzi yeqela.

Ndingayikhupha icala le-MP4 yesandi njenge-WAV?

Akukho kule sixhobo ngokuthe ngqo — khupha isandi esipheleleyo njenge WAV, emva koko sebenzisa /audio-trim/ okanye /audio-cutter/ ukucima icandelo. Umendo wenyathelo elinye uhlala ukhawuleza kunenkqubo edityanisweyo kwaye ukunika ulawulo oluchanekileyo lwenqanaba le-waveform.

Ingaba ifayili yam MP4 ifihlakeleyo ngexesha lokukhupha isandi?

Ewe - imodeli yobumfihlo efanayo neyokuguqulwa ngasinye: abasebenzi ababekwe ngokuzimeleyo, akukho hlaziyo lomuntu, ukucinywa okuzenzekelayo ngaphakathi kwemizuzu yokugqitywa. Ifestile yokugcina epheleleyo ikwi /privacy/.

Kutheni le nto ifayili WAV ineengcambu ezingasebenziyo apho i MP4 ikwisandi?

I-MP4 iqulethe iingoma ezininzi zesandi kwaye i-demuxer ithathe i-stream engenanto okanye encedisayo. Sebenzisa isikhethi esiphambili "i-stream yesandi" ukukhetha i-stream 0, 1, 2 ngokucacileyo, okanye ubeke i-WAV kwisiqulathi seefayili esixhasa i-multi-track output (FLAC, OGG).

Ndingagcina i-WAV njenge-stereo, mono, okanye i-5.1 surround?

Ubeko lwesiqhagamshelanisi lugcinwa ukusuka kwi MP4 ngokumiselweyo - i-5.1 MP4 ivelisa i-5.1 WAV ukuba i-WAV codec ixhasa loo nto (AAC, FLAC, OGG, Opus). Ukhetho lokudibanisa ezantsi lukhuthaza i-stereo okanye i-mono - luncedo kwipodcast yokuhamba komsebenzi apho iingoma ezijikelezayo zilahleka kwi-bitrate.

MP4

Ifomathi yesikhongozeli seMP4 inokugcina ividiyo, iaudio, imibhalo engezantsi, kunye nemifanekiso kwifayile enye enoxinzelelo oluhle kakhulu.

WAV

Iifayile ze-WAV zigcina isandi kwifomathi engacinezelwanga, nto leyo enika isandi esisemgangathweni we-CD esifanelekileyo kumsebenzi wesandi wobuchwephesha.