Mataki na 1: Loda naka AC3 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 AMR fayiloli
AC3 zuwa AMR Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan canza sauti daga AC3 zuwa AMR ba tare da asarar inganci ba?
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Ka shigar da fayil AC3 kuma mai maidamu zai zaɓi AMR haɗin codec / bitrate wanda ya dace da ma'anar. Matsayin da ba a rasa (AMR = WAV / FLAC / ALAC) zai kiyaye duk misali; matsayin da aka rasa (AMR = MP3 / AAC / OGG) yana da diff zuwa 192 kbps wanda yake bayyananne ga littattafan sauti da mafi yawan kiɗa.
Me ya faru da sauti mai yawa-kanana idan an canja AC3 zuwa AMR?
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An ɗaga shi zuwa stereo, saboda AMR ba shi da wani nau'in dandamali mai yawa. An yi amfani da ƙananan haɗawa don amfani da ƙananan haɗawa don haka zauren magana na tsakiyar dandamali yana da kyau kuma an haɗa wuraren da ke kusa a matakin da aka rage. Duk abin da ya dogara kan wurin dandamali na daban ya tafi idan wannan ya faru. AMR na halaka kiɗa: bandwidth ɗinsa na 8 kHz yana cire duk abin da ke sama da sautin waya, kuma babu adadin sake-saukarwa yana dawo da shi.
Me ya sa kiɗa take da zafi a cikin wannan canji?
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@ info: shell AC-3 ne ba daidai ba da zamani standards kuma ba a yarda da browsers, wayar hannu ko mafi yawan web players ba tare da wani downmix zuwa stereo.
Mene ne bitrate ɗin da fayil AMR ke amfani da shi?
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Diflomasiyya ita ce 192 kbps ga mai rasa AMR; wucewa-ta-tafi ga mara rasa AMR. Ka sake zuwa 320 kbps ga masu sauraro ko 64-96 kbps ga littattafan sauti na magana (mai haske ga magana, yana rage girman fayil da rabin).
Shin tafiya daga AC3 zuwa AMR za ta rage ingancin sautina?
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Idan AC3 yana da asara kuma AMR ba da asara ba ne (misal. MP3 → WAV), fayil ɗin AMR bai fi kyau ba fiye da AC3 — ba za ka iya dawo da bayanai da aka riga aka jefa ba. Idan AC3 yana da asara kuma AMR ba da asara ba ne, ka yi tsammanin codec ɗin AMR zai sake ƙunsar; a 192 kbps wannan yana da haske ga mafi yawan abun ciki.
Shin mai canza AC3 zuwa AMR yana riƙe da ID3 / metadata tag?
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Na'am — suna, mai waƙa, alƙawari, shekara, lamba na waƙa, zane na alƙawari, da kuma alamomin sashe (masu muhimmanci ga littattafan sauti) ana karanta su daga AC3 kuma ana rubuta su cikin ƙofar AMR inda siffar AMR take goyon bayan alamomin. Tsarin littattafan sauti na M4B yana tafiya-zuwa-zuwa cikin fitarwa ta M4B da AAX → M4B.
Na'am — ka bar wata maɓalli na AC3 fayiloli cikin kuma mu yi aiki da su a cikin daidaito. Premium yana da ma'aikata masu daidaito da yawa kuma babu iyaka ga girman fayil, don haka fayil mai fayiloli 500 na iya kammala cikin mintina maimakon mintina da dama.
Shin AMR zai riƙe daidaitaccen adadin misali kamar AC3?
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A bisa diff, na'am (48 kHz AC3 → 48 kHz AMR). 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.
Yes — the loudness-normalize option applies ITU-R BS.1770 / EBU R128 normalization to the AMR output, targeting -14 LUFS (streaming standard), -16 LUFS (podcast standard), or -23 LUFS (audiobook standard). Useful when batch-converting tracks with varying mastering levels.
Shin AMR zai yi wasa a cikin shirin ayuka na stereo na motar / iPod / littafin sauti?
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MP3 yana wasa a duniya. AAC yana wasa a kan Apple, mafi yawan Android, Sonos. FLAC yana wasa a kan Sonos da Android, mafi kyau a kan iPods na daɗewa. Littattafan sauti na M4B suna wasa tare da saukar da sashe a kan iOS Littattafai, Audiobookshelf, da Smart Audiobook Player. Zaɓuɓɓukan ci gaba sun haɗa da presets na na'urar.
Shin fayil AC3 na sirri ne yayin canjawa?
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Na'am — an yi aiki da fayilolin da aka tura AC3 a cikin masu aiki masu tsalle-tsalle kuma an share su cikin mintina. Ba za mu taba wasa, adana, ko raba abun cikin sauti ba. Wannan yana da muhimmanci musamman idan ana aiki da labarairu na littattafai masu sauti na mutum.
Menene lokacin da ake buƙata don canja littafin sauti na sa'o'i 10 daga AC3 zuwa AMR?
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Re-mux na codec-daidai: sakan 10-30. Re-encode zuwa wani codec daban: a kan 10-20% na lokacin ma'ana, don haka littafin sauti na awa 10 zai ƙare cikin minti 60-120. Markers na sashe suna tsira daga tafiyar-zuwa-zuwa kuma su raba da kyau.
