Iifayile ze-MP3 kunye nee-AAC zihluke njani, kunye nezinye iifayile zefayile ze-iPhone

Fumana iintlobo zeefayile zomsindo ezingenzi kunye ne-iPhone ne-iPod

Ngexesha lomculo wedijithali, abantu baninzi babiza nayiphi na ifayile yomculo "i-MP3." Kodwa oko akunjalo ngokuchanekileyo. I-MP3 ibhekisela kwihlobo oluthile lwefayili yomsindo kwaye akuyiyo yonke ifayile ye-digital yomsindo eyi-MP3. Ukuba usebenzisa i-iPhone , i-iPod, okanye esinye isixhobo se-Apple, kukho ithuba elihle lokuba uninzi lomculo wakho alukho kwi-MP3 format.

Unjani uhlobo lweefayile zakho iingoma zedijithali, ngoko? Eli nqaku lichaza iinkcukacha zefayile ye-MP3, iiphambili kunye ne-Apple-ekhethiweyo i-AAC, kunye nezinye zeefayile zeefayile eziqhelekileyo ezenzayo kwaye zingasebenzi nama-iPhones nee-iPod.

Yonke Ngefomathi ye-MP3

I-MP3 ifutshane kwi-MPEG-2 Audio Layer-3, umgangatho wendaba wedijithali owenziwe yiQela leeNkcukacha ze-Moving Picture (MPEG), umzimba wezoshishino odala imigangatho yobugcisa.

Iifayile zeWindows
Iingoma ezigcinwe kwi-MP3 format zithatha indawo encinane kuneengoma ezifanayo ezigcinwe usebenzisa ifomathi ye-audio quality yeCD ezifana ne-WAV (ngaphezulu kwifomathi kamva). Ama-MP3s agcina indawo yokugcina ngokucwangcisa idatha eyenza ifayile. Ukucaphula iingoma kuma-MP3s kubandakanya ukususa iifayile ezingayi kuba nefuthe kumava okuphulaphula, ngokuqhelekileyo iiphelo eziphezulu kakhulu kwaye ziphantsi kakhulu. Ngenxa yokuba enye idatha isusiwe, i-MP3 ayizwanga ifana nenguqulo yekhwalithi yayo yeCD kwaye ibhekiswa njengefayili " yokulahleka" . Ukulahlekelwa kwamanye amacandelo omsindo kuye kwabangela ezinye i-audiophiles ukugxeka ama-MP3 njengonakalisa amava okuphulaphula.

Ngenxa yokuba ii-MP3s zixinezelekile ngaphezu kwe-AIFF okanye ezinye iifomati zokunyanzelisa ilahleko, ii-MP3s ezininzi zingagcinwa kwisithuba esifanayo kwiifayile eziphezulu zeCD.

Nangona iisetyenzisi ezisetyenziselwa ukudala ii-MP3s zingatshintsha oku, ngokuqhelekileyo ukuthetha i-MP3 kuthatha malunga ne-10% yendawo yefayile yomsindo weCD. Umzekelo, ukuba ingoma ye-CD ingoma ye-ingoma engu-10 MB, i-MP3 version iya kuba malunga ne-1 MB.

Amanani amaBhati kunye nee-MP3s
Umgangatho womculo we-MP3 (kunye nazo zonke iifayile zomculo zedijithali) zilinganiselwa kwisantya sawo, zenziwe njenge kbps.

Ukuphakama kwezinga elincinci, ngaphezulu kwedatha ifayili kunye neengoma ze-MP3. Iindleko eziqhelekileyo eziqhelekileyo ziyi 128 kps, 192 kbps, kunye ne-256 kbps.

Kukho iintlobo ezimbini zeerhafu ezisetyenziselwa ii-MP3s: I- Bit Rate (CBR) kunye ne-Variable Bit Rate (VBR) . Ama-MP3s amaninzi amaninzi asebenzisa iVBR, eyenza iifayile zibe ziincinci ngokufakela ezinye iingoma zengoma kwizinga elincinci, ngelixa ezinye zifakwe kwiikhowudi eziphezulu. Ngokomzekelo, icandelo loma ingoma elinye kuphela lilula kwaye linokufakwa ngekhowudi encinci kakhulu, ngelixa iingoma zengoma enezixhobo eziyinkimbinkimbi kufuneka zincinci ukunciphisa uluhlu olupheleleyo lwezandi. Ngokutshintsha umyinge wezinga, umgangatho osemgangathweni we-MP3 unako ukuhlala uphakamileyo ngelixa ukugcina okufunekayo kwifayili kugcinwe kakhulu.

Ama-MP3s asebenza ngayo iTunes
I-MP3 ingaba yindlela ethandwa kakhulu kwi-digital yomsindo kwi-intanethi, kodwa i-iTunes Store ayinikezeli umculo kule fomethi (ngaphezulu kwilo candelo elilandelayo). Nangona kunjalo, ii-MP3 zihambelana ne-iTunes kunye nazo zonke idivayisi ze-iOS, njenge-iPhone ne-iPad. Unokufumana ii-MP3s ukusuka:

Konke malunga neFom AAC

I-AAC, emele iCoping Advanced Coding, iyinhlobo yefayile yesandi edijithali ekhuthazwe njengomzukeli kwi-MP3. I-AAC ibonelela ngesandi esiphezulu se-MP3 ngaphandle kokusebenzisa i-disk space okanye ngaphantsi.

Abantu abaninzi bacinga ukuba i-AAC yifom ye-Apple enefayile, kodwa oku kulungile. I-AAC yaqulunqwa liqela leenkampani kuquka ne-AT & T Bell Labs, i-Dolby, i-Nokia kunye ne-Sony. Ngelixa i-Apple iye yamkela i-AAC yomculo wayo, iifayile ze-AAC ziyakwazi ukudlalwa kwiinkalo ezingekho ze-Apple, kubandakanywa izixhobo zemidlalo kunye neefowuni ezihamba nge-Android ye-Android OS, phakathi kwabanye.

I-AAC isebenza njani
Njenge-MP3, i-AAC yifom yefayili elahlekileyo. Ukuze uqonde umsindo we-CD kwiifayile ezithatha indawo encinane yokugcina, idatha engayi kuba nefuthe kumava okuvavanya kwakhona, ngokuqhelekileyo ekugqibeleni nokuphakama okuphantsi-isuswa. Ngenxa yenkcenkcazo, iifayile zeAAC azizwanga zifana neefayile zekhwalithi yeCD, kodwa ngokuqhelekileyo zivakala kakuhle ukuba abantu abaninzi abaqapheli ukunyanzelisa.

Njengama-MP3s, umgangatho wefayili ye-AAC ilinganiswa ngokusekelwe kwinqanaba lentlawulo. Bitrate eziqhelekileyo ziquka i-128 kbps, i-192 kbps kunye ne-256 kbps.

Izizathu zokuba i-AAC ikhiqize umsindo ozwakalayo ozwakalayo ngaphezu kwee-MP3s eziyinkimbinkimbi. Ukuze ufunde kabanzi ngeenkcukacha zobugcisa balo mmahluko, funda i-Wikipedia inqaku kwi-AAC.

Indlela i-AAC isebenza ngayo iTunes
I-Apple iye yamkela i-AAC njengefom yefayile ekhethiweyo yomsindo. Zonke iingoma ezithengiswa kwi-iTunes Store, kwaye zonke iingoma zisasazwa okanye zikhutshwe kwi-Apple Music, zifomathi ye-AAC. Zonke iifayile ze-AAC ezinikezelwa ngale ndlela zikhowudiweyo kwi-256 kbps.

Ifayile yeFayile yeAff Audio

I-WAV ifutshane kwi-Waveform Audio Format. Le fayili yomsindo ophezulu ngokuqhelekileyo isetyenziswe kwizicelo ezifuna izandi eziphezulu, ezifana neeCD. Iifayile ze-WAV azixinzezelekanga, ngoko ke zithatha indawo engaphezulu kwediski ngaphezu kwee-MP3s okanye ii-AAC, ezincinci.

Ngenxa yokuba iifayile ze-WAV azixinzezelekanga (ezaziwa ngokuba "ifomati" ), ziqulethe iinkcukacha ezininzi kwaye zivelise izandi ezingcono, ezifihlakeleyo kunye nezandi epheleleyo. Ifayile yeWV idinga ngokubanzi i-10 MB nganye ngomzuzu 1 we-audio. Ngokuthelekiswa, i-MP3 idinga malunga ne-1 MB nganye ngomzuzu 1.

Iifayile ze-WAV ziyahambelana namadivayisi ase-Apple, kodwa aqhelekanga asetyenziswe ngaphandle kwabalandeli. Funda kabanzi malunga nefomathi yeWave .

IWMA yeFayile yeFayile

I-WMA imele iWindows Media Audio. Olu luhlobo lwefayile olukhuthazwa kakhulu yiMicrosoft, inkampani eyayilungisa. Yifomathi yomthonyama esetyenziswa kwiWindows Media Player, zombini kwi-Macs ne-PC. Ikhuphisana neefomati ze-MP3 kunye ne-AAC kwaye inikezela ukuxilwa okufanayo kunye nobukhulu befayile njengalezo ifomathi. Akuhambelani ne-iPhone, i-iPad kunye namadivayisi afana ne-Apple. Funda kabanzi malunga nefomathi yeWMA .

Iifayile zeFayili yeFayili yeAifF

I-AIFF imele ifom yeFayile yokuTshintshana kweeNkcukacha. Enye ifomathi yomsindo ongathintekiyo, i-AIFF yaqulunqwa yi-Apple ngasekupheleni kweminyaka yama-1980. Njengo-WAV, isebenzisa malunga ne-10 MB yokugcina ngomzuzu womculo. Ngenxa yokuba ayicinezeli i-audio, i-AIFF ifomati esemgangathweni ekhethiweyo yi-audiophile kunye neemvumi. Ekubeni yenziwe yi-Apple, iyahambelana namadivayisi e-Apple. Funda kabanzi ngefomathi ye-AIFF .

I-Apple Lossless Audio File Format

Olunye uveliso lwe-Apple, i-Apple Lossless Audio Codec (ALAC) iyimpumelelo kwi-AIFF. Le nguqulo, ekhutshwe ngo-2004, ekuqaleni yayiyifomathi yokuthengisa. I-Apple yenze umthombo ovulekileyo ngo-2011. I-Apple Izilinganiso ezingenasiphelo zinciphisa ubungakanani befayile ngokugcina umgangatho ophezulu. Iifayile zayo ngokubanzi zi malunga ne-50% encinci kuneefayile ezingaxinzekanga, kodwa ngelahleko elingaphantsi komgangatho olalelwayo ngaphandle kwe-MP3 okanye i-AAC. Funda kabanzi ngefomathi ye-ALAC .

Ifayile yeFayile yeFayile yeVidiyo

Eyaziwayo kunye nama-audiophiles, i-FLAC (i-Free Lossless Audio Codec) ifom evulekileyo yomsindo olwaziyo ukunciphisa ubungakanani befayili ngama-50-60% ngaphandle kokunciphisa umgangatho womculo kakhulu.

I-FLAC ayihambelani ne-iTunes okanye iOS iifayili ngaphandle kwebhokisi, kodwa inokusebenza kunye nesofthiwe esongeziweyo efakwe kwisixhobo sakho. Funda kabanzi ngefomethi yeFLAC . A

Ziziphi iifayile zomsindo ezihambelana ne-iPhone / iPad / iPod

Iyahambelana?
MP3 Ewe
AAC Ewe
WAV Ewe
WMA Hayi
AIFF Ewe
Apple ilahlekelwa Ewe
FLAC Nge software eyongezelelweyo