AIFF → AMR

Sinthani Yanu AIFF ku AMR mafayilo mosavuta

Sankhani mafayilo anu

kapena dinani ndi kuchotsani mafayilo anu apa

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Kusintha owona ufulu, Pro ogwiritsa angakonzekere zambiri zochuluka owona; Kulembetsa Tsopano

Kukweza

Momwe mungasinthire AIFF ku AMR

Gawo 1: Kwezani yanu AIFF 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 AMR mafayilo

AIFF ku AMR Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji AIFF audio ku AMR popanda kuwononga mtundu?

Kutsitsa fayilo ya AIFF ndipo wosintha amasankha AMR codec ndi bitrate kuti agwirizane ndi chiyambi. Lossless AMR (WAV / FLAC / ALAC) imasunga zonse zomwe zimawoneka bwino; lossy AMR (MP3 / AAC / OGG / Opus) imasinthidwa ku 192 kbps yomwe ndi yosawoneka bwino kwa maganizo ambiri. AIFF amasunga PCM yosasinthika ya big-end — yomwe ndi yofanana ndi WAV ya Apple, ndi kusamvana kwa bit-by-bit. AMR ndi narrowband mawu codec kuyendetsa pakati pa 4.75 ndi 12.2 kbps, modeling munthu woimba m'mimba kuposa wonse audio spectrum.

Kodi ndibwino bwanji kuti ndichepetse kusinthidwa kwa AIFF ku AMR?

Ena, ndipo ndi nthawi yayitali - ichi ndi chiwongola dzanja chomwe chimabweretsa zambiri. AIFF imakhala ndi chilichonse chosadziwika bwino; AMR imachotsa zomwe psychoacoustic model imayembekezera kuti simudzawona. Pa 192 kbps ndi pamwambapa kuti kuyembekezera ndi kokwanira kuti zikhale zowoneka bwino pazinthu zambiri ndi zida zambiri. Tengani AIFF ngati mtsogoleri wanu, chifukwa simungathe kubwerera ku AMR.

Kodi malemba anga a nyimbo ndi album art adzapulumuka kusinthidwa kwa AIFF ku AMR?

Siyimagwira ntchito. AIFF imathamanga ndi metadata block yoyenera, koma AMR siyimagwira ntchito yoyenera ya woimba, album, track number kapena cover art, kotero ma tag amatulutsidwa osati kuwonongedwa. Tengani AIFF ngati kopita kokhala ndi tag, kapena gwiritsani ntchito njira zina monga Mp3tag kapena MusicBrainz Picard. AMR amawononga nyimbo: yake 8 kHz bandwidth amachotsa zonse pamwamba foni ma frequencies, ndi palibe ndalama ya re-encoding amabweretsa izo kumbuyo.

Kodi chimachitika ndi ma audio ambiri a multichannel pamene amasintha AIFF ku AMR?

Idzaikidwa pansi pa stereo, chifukwa AMR siyimakhala ndi njira yogwiritsira ntchito ma channel ambiri. Kulowetsa kumagwiritsa ntchito ma coefficients ovomerezeka kuti ma channel apakati azikhala owoneka bwino ndipo ma surrounds amaphatikizidwa pamalingaliro otsika. Chomwecho chilichonse chomwe chimadalirika pa malo osiyana a ma channel chimapita pamene ichi chikuchitika.

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. AIFF ndi lalikulu monga WAV ndi zoipa thandizo kunja kwa Apple padziko, kotero ndi woipa kusankha kwa kugawa.

Kodi bitrate yomwe imachokera ku fayilo ya AMR idzagwiritsa ntchito?

Mtengo woyambirira ndi 192 kbps kwa lossy AMR; pass-through kwa lossless AMR. Chotsani 320 kbps kwa audiophile kapena 96 kbps kwa mawu / podcast. Chosankha chimasintha kukula kwa fayilo ndi kumvetsera; pansi pa 96 kbps lossy artifacts amawoneka pa nyimbo.

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

Ngati AIFF ndi yowonongeka ndipo AMR ndi yopanda kusowa (mwachitsanzo MP3 → WAV), AMR si yabwino kuposa AIFF - simungathe kubwezeretsa zambiri zomwe zatulutsidwa. Ngati AIFF ndi yopanda kusowa ndipo AMR ndi yopanda kusowa, AMR codec imabwezeretsa; pa 192 kbps zotsatirazi ndizosawoneka bwino kwa zinthu zambiri.

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

Ndikoyenera - dzina, woimba, album, chaka, mndandanda wa nyimbo, ndi album art amawerengedwa kuchokera ku AIFF kontena ndi kulemba ku AMR kontena komwe mtundu umathandizira ma tag. Zonse zofunikira (MP3, AAC, FLAC, OGG) zimayendetsa ma tag bwino; WAV yosapanga dzimbiri siyichita. AMR ndi Adaptive Multi-Rate, mawu codec 3GPP standardized kwa GSM mawu kulankhula ndi mafoni mawu olemba.

Kodi ndingasinthire mamiliyoni a AIFF mafayilo ku AMR?

Yai - chotsani fayilo ya AIFF 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 AMR idzakhala ndi kuchuluka kwa sampling monga AIFF?

Mwa default yes — 48 kHz AIFF imakhala 48 kHz mu AMR. Ngati mukufuna kulowetsa kuti mugwirizane (96 kHz → 44.1 kHz kwa kulemba CD), kusankha kwa sampling-rate kumagwiritsa ntchito kulowetsanso kwabwino kwambiri panjira yofanana yolemba.

Kodi ndingasinthire kuwala kwamphamvu pamene ndikusintha AIFF kupita ku AMR?

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

Kodi AMR yanga idzasewera pa stereo yagalimoto, iPod ndi Sonos?

MP3 imasewera kulikonse. AAC imasewera pa Apple, ambiri a Android, ndi Sonos. FLAC imasewera pa Sonos ndi Android koma si pa iPods oyambirira. WAV imasewera pa chilichonse koma ndi chachikulu. Kusintha kwa chipangizo chosinthika chimasankha codec ya AMR yosinthidwa kwa zida zanu zofunikira. AMR amachititsa mawu kujambula absurdly ochepa - nthawi ya mawu amagwirizana mu megabytes angapo - ndipo ndi zimene ambiri mafonibe kujambula mafoni mu.