Mataki na 1: Loda naka M4A 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
M4A zuwa AMR Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan canza sauti daga M4A zuwa AMR ba tare da asarar inganci ba?
+
Ka shigar da fayil M4A 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.
Shin sunana na waƙa da zane na alƙalami za su tsira daga canjin M4A zuwa AMR?
+
Ba daidai ba. M4A na da wani ɓangaren metadata mai kyau, amma AMR ba ta da wani wuri na al'ada ga mai waƙa, alƙawari, lamba na waƙa ko zane na kwafin, don haka an rufe alamomin ba tare da an rufe su ba. Ka riƙe M4A kamar kwafin da aka yi wa alama, ko kuma sake sanya alamar bayan haka da wani kayan aiki kamar Mp3tag ko MusicBrainz Picard. 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 faru da sauti mai yawa-kanana idan an canja M4A zuwa AMR?
+
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.
Me yasa wasu daga cikin fayilolina M4A ba su canja ba?
+
DRM. An rufe wani ɓangare na M4A fayiloli ta wurin shagon ko kuma kayan aikin da suka fitar da su, kuma ba za'a iya rufe sauti mai rufewa ta hanyar wani mai musanya ba. Duk wani abu da ka rufe kaɗai, ka riƙe, ko ka saya ba tare da tsaro ba zai canza kamar yadda ya kamata; sayen da lasisi ba zai yi haka ba. M4A ɓoye biyu abubuwa daban-daban a bayan daya zurfi - lossy AAC da lossless ALAC - da non-Apple kayan aiki goyon baya ne ba daidai ba.
Me ya sa kiɗa take da zafi a cikin wannan canji?
+
@ info: shell
Mene ne bitrate ɗin da fayil AMR ke amfani da shi?
+
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 M4A zuwa AMR za ta rage ingancin sautina?
+
Idan M4A yana da asara kuma AMR ba da asara ba ne (misal. MP3 → WAV), fayil ɗin AMR bai fi kyau ba fiye da M4A — ba za ka iya dawo da bayanai da aka riga aka jefa ba. Idan M4A 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 M4A zuwa AMR yana riƙe da ID3 / metadata tag?
+
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 M4A 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 M4A 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 M4A?
+
A bisa diff, na'am (48 kHz M4A → 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?
+
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.
