Mai Juyawa AMR zuwa M4A

Maida Naka AMR zuwa M4A fayiloli da wahala

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*An goge fayiloli bayan awanni 24

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Ana lodawa

Yadda ake canzawa AMR zuwa M4A

Mataki na 1: Loda naka AMR fayiloli ta amfani da maɓallin da ke sama ko ta hanyar ja da sauke su.

Mataki na 2: Danna maɓallin 'Maida' don fara hira.

Mataki na 3: Sauke fayil ɗin da aka canza M4A fayiloli

AMR zuwa M4A Tambayoyin da ake yawan yi game da Canzawa

Ta yaya zan canza sauti daga AMR zuwa M4A ba tare da rasa inganci ba?

Ka shigar da fayil AMR kuma mai maidamu zai zaɓi M4A haɗin codec / bitrate wanda ya dace da ma'anar. Matsayin da ba'a rasa ba (M4A = WAV / FLAC / ALAC) yana kiyaye duk misali; matsayin da aka rasa (M4A = MP3 / AAC / OGG) yana da diff zuwa 192 kbps wanda yake bayyananne ga mafi yawan kunnuwa.

Mene ne bitrate ɗin da fayil M4A ke amfani da shi?

Dimba 192 kbps ga M4A mai rasa; wucewa-ta-tafi ga M4A mara rasa. Ka sake zuwa 320 kbps ga audiophile ko 96 kbps ga magana / podcast. Zaɓin yana musanya girman fayil da aminci mai ji a bitrates masu kasa.

Shin tafiya daga AMR zuwa M4A za ta rage ingancin sautina?

Idan AMR yana da asara kuma M4A ba da asara ba ne (misal, MP3 → WAV), fayil ɗin M4A bai fi kyau ba fiye da AMR — ba za ka iya dawo da bayanai da aka riga aka jefa ba. Idan AMR yana da asara kuma M4A yana da asara, ka yi tsammanin codec ɗin M4A zai sake ƙunsar; a 192 kbps wannan yana da haske ga mafi yawan abun ciki.

Shin mai canza AMR zuwa M4A yana riƙe da ID3 / metadata tag?

Na'am — suna, mai waƙa, alƙawari, shekara, lamba na waƙa, zane na alƙawari an karanta su daga AMR kuma an rubuta su cikin ƙofar M4A (inda siffar M4A take goyon bayan alamomin, wanda duk waɗanda ake amfani da su suke yi).

Shin zan iya canja ɗaruruwan fayiloli AMR zuwa M4A?

Na'am — ka saka wata ƙuƙwalwar fayiloli AMR cikin kuma mu yi aiki da su a cikin haɗin kai. Premium na da ma'aikata da yawa a cikin haɗin kai kuma ba shi da iyaka ga girman fayil, don haka ƙungiya mai fayiloli 500 na iya ƙarewa cikin minti ba tare da minti da yawa ba.

Shin M4A zai riƙe daidaitaccen adadin misali kamar AMR?

A bisa diff, na'am (48 kHz AMR → 48 kHz M4A). Idan kana buƙatar rage misalin don daidaituwa (misal. 96 kHz → 44.1 kHz don ƙona CD) zaɓin ƙimar misali mai zurfi yana yin wannan tare da sake misalin da inganci mai girma.

Shin zan iya daidaita ƙarfin sauti cikin mataki AMR zuwa M4A?

Yes — the loudness-normalize option applies ITU-R BS.1770 / EBU R128 normalization to the M4A output, targeting -14 LUFS (streaming standard) or -16 LUFS (podcast standard). Useful when batch-converting tracks with varying mastering levels.

Shin M4A zai yi wasa a kan na'urar rediyo ta mota / iPod / Sonos?

MP3 wasa a duk duniya. AAC wasa a kan Apple, mafi Android, Sonos. FLAC wasa a kan Sonos da Android, mafi kyau a kan iPods da suka wuce. WAV wasa a kan dukan amma shi ne mai girma. Advanced zaɓuɓɓuka sun hada da na'urar presets ga wadannan manyan al'amura.

Shin fayil ɗin AMR na sirri ne yayin canjawa?

Na'am — an yi aiki da fayilolin AMR da aka shigar a cikin masu aiki daban-daban kuma an share su cikin minti. Ba za mu taba wasa, adana, ko raba abun cikin sauti ba.

Menene lokacin da ake buƙata don canja AMR na awa 1 zuwa M4A?

Re-mux na codec-daidai: sakan 10-30. Re-encode zuwa wani codec daban: a kan 10-20% na lokacin da ake da shi, don haka wata sa'a AMR → M4A ta ƙare cikin minti 6-12.

Me yasa fayil M4A ya fi ƙarfi / kwanciya fiye da wurin asali AMR?

Ba'a samu canji na samun na'ura ba sai ka kunna zaɓin daidaita. Idan kana ganin canji a mataki, mai kunna sauti ko ɗakin ajiyar kafofin watsa labarai na iya amfani da ReplayGain ko daidaita-da-waƙa a kan wasa — ba mu ba.

Shin zan iya canja saukar da AMR zuwa M4A?

Idan saukarwa AMR ba'a kare shi ba (ba da DRM), to, na'am. Fayilolin da aka rufe da DRM (Spotify, Apple Music) an rufe su a matakin bita kuma ba za mu iya aiwatar da su ba. Manzannin daga Bandcamp, saukarwa daga SoundCloud, da kuma rikodin kai tsaye za'a canja su da kyau.

AMR

AMR (Adaptive Multi-Rate) wani tsari ne na matsawa mai jiwuwa wanda aka inganta don lambar magana. An fi amfani da shi a cikin wayoyin hannu don rikodin murya da sake kunna sauti.

M4A

M4A ne audio fayil format cewa shi ne a hankali alaka da MP4. Yana ba da matsi mai inganci mai inganci tare da tallafi don metadata, yana mai da shi dacewa da aikace-aikace daban-daban.