Sinthani AMR ku AAC

Sinthani Yanu AMR ku AAC mafayilo mosavuta

Sankhani mafayilo anu

*Mafayilo achotsedwa patatha maola 24

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

Kukweza

Momwe mungasinthire AMR ku AAC

Gawo 1: Kwezani yanu AMR 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 AAC mafayilo

AMR ku AAC Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji AMR audio ku AAC popanda kuwonongeka kwabwino?

Kutsitsa fayilo ya AMR ndipo wosinthira wathu amasankha kulumikizana kwa AAC codec / bitrate komwe kumagwirizana ndi chiyambi. Kulephera kopanda malire (AAC = WAV / FLAC / ALAC) kumateteza chilichonse; kulephera kopanda malire (AAC = MP3 / AAC / OGG) kumasinthidwa ku 192 kbps komwe kumawoneka bwino kwa audiobooks olankhula ndi nyimbo zambiri.

Kodi kusinthira AMR ku AAC ndi gawo lachiwiri la kutsitsa kwa lossy?

Ndikukhulupirira kuti ndinu oyenera, ndipo ndibwino kuti mupange. Mafomu awiriwa ndi owonongeka, choncho AAC 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 kusowa, kulemba koyamba kwa AAC kuchokera ku yomwe imalepheretsa kupita kwachiwiri kwathunthu. AMR ndi narrowband mawu codec kuyendetsa pakati pa 4.75 ndi 12.2 kbps, modeling munthu woimba m'mimba kuposa wonse audio spectrum. AAC ndi lossy koma bwino kuposa MP3, ndipo amagwira mpaka 48 ma channels mwachilengedwe kuposa kukhala bolted pa stereo kupanga.

N’chifukwa chiyani nyimbo zimawoneka zoipa kwambiri pa chikhulupiriro?

Chifukwa chimodzi mwazigawo zake ndi codec ya mawu kuposa codec ya nyimbo. Imakhala ndi maonekedwe a munthu woimba ndipo imachotsa chilichonse m’mbali mwa bandwidth ya foni, chomwe ndi choyenera kwa mawu olemba mawu komanso chowononga kwa chilichonse chomwe chili ndi zida. Kusintha kuchokera ku izo sikungabwezeretse ma frequencies osakhudzidwa — iwo sanali kusinthidwa pamalo oyamba. AMR amawononga nyimbo: yake 8 kHz bandwidth amachotsa zonse pamwamba foni ma frequencies, ndi palibe ndalama ya re-encoding amabweretsa izo kumbuyo.

Kodi bitrate ya AAC imagwiritsa ntchito?

Default ndi 192 kbps kwa lossy AAC; pass-through kwa lossless AAC. Kusintha kwa 320 kbps kwa audiophile kapena 64-96 kbps kwa mawu olankhula audiobooks (owoneka bwino kwa mawu, amadula kukula kwa fayilo).

Kodi kuchoka ku AMR kupita ku AAC kumachepetsa mtundu wanga wa audio?

Ngati AMR ndi lossy ndipo AAC ndi lossless (mwachitsanzo MP3 → WAV), fayilo ya AAC si yabwino kuposa AMR - simungathe kubwezeretsa zambiri zomwe zatulutsidwa. Ngati AMR ndi lossless ndipo AAC ndi lossy, yembekezerani kuti codec ya AAC ibwezeretse; pa 192 kbps izi ndi zosawoneka bwino kwa zinthu zambiri.

Kodi wosintha AMR kupita ku AAC amasunga ID3 / metadata tags?

Ndikoyenera - dzina, woimba, album, chaka, mndandanda wa nyimbo, album art, ndi masamba olemba (ofunika kwambiri kwa audiobooks) amawerengedwa kuchokera ku AMR ndipo amalemba mu AAC wokhala ndi AAC mtundu umathandizira ma tag. M4B audiobook structure round-trips into M4B and AAX → M4B output.

Kodi ndingasinthire mamiliyoni a AMR mafayilo ku AAC?

Yai - chotsani fayilo ya AMR ndikuwapanga mofanana. Premium ili ndi ogwira ntchito ambiri mofanana ndi malire a fayilo, kotero fayilo ya 500-file batch imatha m'maola angapo osati m'maola angapo.

Kodi AAC idzakhala ndi kuchuluka kwa sampling monga AMR?

Mwachidule ndi yemweyo (48 kHz AMR → 48 kHz AAC). Ngati mukufuna kuchepetsa kusamvana kwa kugwirizana (mwachitsanzo 96 kHz → 44.1 kHz kwa kulemba CD) kusankha kwa kusamvana kwamphamvu kumachita izi ndi kusamvana kwabwino.

Kodi ndingasinthire kuwala kwamphamvu m'njira ya AMR mpaka AAC?

Ndiye — njira yosintha mawu imagwiritsa ntchito ITU-R BS.1770 / EBU R128 yosintha mawu ku AAC, yolenga -14 LUFS (mtengo wosinthira), -16 LUFS (mtengo wosinthira podcast), kapena -23 LUFS (mtengo wosinthira audiobook).

Kodi AAC idzasewera pafoni yanga yagalimoto / iPod / audiobook app?

MP3 amasewera padziko lonse. AAC amasewera pa Apple, ambiri Android, Sonos. FLAC amasewera pa Sonos ndi Android, osachepera bwino pa zaka zakale iPods. M4B audiobooks kusewera ndi bokosi la navigation pa iOS Buku, Audiobookshelf, ndi Smart Audiobook Player.

Kodi fayilo yanga AMR ndi yapadera panthawi yosintha?

Ndikoyenera - mafayilo a AMR omwe amatulutsidwa amachitidwa m'mabungwe osiyana ndi omwe amagwira ntchito ndipo amachotsa m'maola ochepa. Sitimasewera, sitisunga kapena sitigawana zolemba za audio.

Kodi ndi nthawi yayitali bwanji kuti musinthe audiobook ya 10-hour AMR kupita ku AAC?

Kusinthanso kwa codec yomweyo: 10-30 masekondi. Kusinthanso kwa codec yosiyana: nthawi zambiri 10-20% ya nthawi yoyambira, kotero buku la mawu la maola 10 limatha m'maola 60-120. Mapepala olemba nkhani amapita patsogolo ndi kugawidwa bwinobwino.