MP3, AAC, WMA, FLAC, ALAC, WAV, AIFF, ndi PCM Yofotokozedwa
Zida zambiri zimatha kusewera zosiyanasiyana zojambula zojambulajambula kunja kwa bokosi, nthawi zambiri popanda zofunikira zowonongeka kapena firmware. Ngati mutapyola mu bukuli mungadabwe ndi mitundu yosiyanasiyana yomwe ilipo.
Nchiyani chimapangitsa iwo kukhala osiyana kuchokera kwa wina ndi mzake, ndipo kodi izi ziyenera kukhala zofunikira kwa inu?
Mafayilo a Fayilo la Ma Music
Malinga ndi nyimbo zamagetsi , kodi maonekedwewa ndi ofunika kwambiri? Yankho ndilo: zimadalira.
Pali ma fayilo omvera ophatikizidwa komanso osayimitsidwa, omwe angakhale nawo osowa kapena opanda ungwiro. Maofesi opanda ungwiro akhoza kukula kwambiri, koma ngati ali ndi malo osungirako (mwachitsanzo, PC kapena laputopu, galimoto yosungirako mafoni, seva ya mafilimu, etc.), ndipo muli ndi zipangizo zamakono zotchuka, pali phindu logwiritsa ntchito mawu osadziwika kapena osayenerera .
Koma ngati malo akuyambira, monga mafoni , mapiritsi, ndi osewera, kapena mukukonzekera kugwiritsa ntchito mafoni apamwamba kapena okamba nkhani, ndiye kuti maofesi ang'onoang'ono ophatikizidwa ndizomwe mukufunikira.
Ndiye mumasankha bwanji? Apa pali kusiyana kwa mitundu yofanana, zofunikira zawo, ndi zifukwa zomwe mungagwiritsire ntchito.
- MP3: Yopangidwa ndi Gulu la akatswiri ojambula zithunzi (MPEG), bungwe lomwe limapanga miyezo yoyenera mavidiyo ndi mavidiyo, MPEG-1 / MPEG-2 Layer 3 (MP3) mwachiwonekere mtundu wa fayilo wowonjezera komanso wothandizira.
- Ma MP3 ndi mafilimu ophatikizidwa ndi osowa , omwe amakhala ndi 8 kbit / s kufika pa 320 kbit / s, ndi maulendo a sampuli kuyambira 16 kHz mpaka 48 kHz. Mafayilo aang'ono a ma MP3 amawatcha maulendo ofulumira komanso malo osachepera omwe amagwiritsidwa ntchito, koma pokhapokha ngati kuchepa kwa khalidwe lakumveka kumayerekeza ndi mafayilo opanda mafayilo.
- AAC: Wotchuka ndi Apple iTunes, mawonekedwe a Advanced Audio Coding (AAC) ali ofanana ndi MP3, koma ndi phindu limodzi lowonjezera lachangu.
- AAC ndi mafilimu ophatikizidwa ndi osowa, omwe amakhala ndi 8 kbit / s kufika pa 320 kbit / s, ndi maulendo a sampuli kuyambira 8 kHz kufika pamwamba-ndi njira yokwanira yolumikiza-96 kHz.
- Maofesi a AAC akhoza kupereka khalidwe lomwelo lapamwamba ngati MP3 pamene akukhala ndi malo ochepa. ACC imathandizanso mpaka pa 48 njira, pamene ma MP3 ambiri angathe kugwira awiri okha. AAC imagwirizana kwambiri koma siiyikidwe kwa iOS, Android, ndi zipangizo zamaseĊµera zogwiritsa ntchito.
- WMA: Yopangidwa ndi Microsoft monga mpikisano ku MP3, mafayilo a Windows Media Audio amapereka zofanana, ngakhale zokhudzana ndi chiyankhulo. Masewu a WMA ndi mafilimu ophatikizidwa ndi osowa, ngakhale kuti mawonekedwe atsopano, osiyana ndi ma codec apamwamba angathe kupereka chopanda pake.
- Ngakhale mitundu yambiri ya mafilimu opangidwa ndi ojambula kunyumba ndi othandizira amawunikiro a mawonekedwe a WMA mwachisawawa, zipangizo zochepa za mafoni monga mafoni ndi mapiritsi amachita. Ambiri amafunika kujambula pulogalamu yogwirizana kuti azisewera WMA audio, zomwe zingapangitse kuti zisakhale zosavuta kugwiritsira ntchito pa MP3 kapena AAC.
- FLAC: Yopangidwa ndi Foundation Xiph.Org, Free Lossless Audio Codec (FLAC) imakhala ndi chidwi chochuluka chifukwa cha maulamuliro ake opanda ufulu komanso omasuka.
- FLAC ndi mafilimu ophatikizidwa komanso osayenerera, ndi khalidwe la fayilo lotha kufika pa 32-bit / 96 kHz (poyerekezera, CD ndi 16-bit / 44.1 kHz). FLAC imakhala ndi mwayi woperekera kukula kwa fayilo (pafupifupi 30 mpaka 40 peresenti yaing'ono kuposa deta yapachiyambi) popanda kupereka nsembe yamagetsi, zomwe zimapangitsa kukhala chithunzithunzi choyenera cha digito yosungira (mwachitsanzo, kugwiritsa ntchito iyo monga chilembo kuti muumbe mafayilo oumirizidwa / owonongeka omwe amamvetsera mwachidwi).
- ALAC: Mapulogalamu a Apple a FLAC, Apple Lossless Audio Codec (ALAC) amagawana zambiri pokhudzana ndi khalidwe lapamwamba komanso fayilo ndi FLAC.
- ALAC ndi mafilimu opanikizika komanso osayenerera. Ikuthandizidwanso mokwanira ndi zipangizo za iOS ndi iTunes, pomwe FLAC ikhoza kuthandizidwa. Momwemo, ALAC kawirikawiri imagwiritsidwa ntchito ndi ogwiritsa ntchito mankhwala a Apple.
- WAV: Zomwe zinayambitsidwa ndi Microsoft, Waveform Audio File Format ndizoyimira mawonekedwe a Windows ndipo zimagwirizana ndi mapulogalamu osiyanasiyana.
- WAV ndi yosasunthika (koma imatha kulembedwa ngati yolemetsedwera) ndi mafilimu osayeruzika, makamaka buku lenileni la deta. Fayilo ya munthu aliyense ikhoza kutenga malo ambiri, kupanga mawonekedwe abwino kwambiri kuti asungidwe ndi kusindikiza. Maofesi a WAV ali ofanana ndi ma PCM ndi AIFF.
- AIFF: Yopangidwanso ndi Apple, Audio Interchange File Format (AIFF) ndiyomweyi yosungira mauthenga pa Mac makompyuta.
- AIFF ndi yosasunthika (palichinthu chophatikizidwa) ndi mtundu wopanda malire. Monga ma fayilo a Microsoft WAV, mafayilo a AIFF angathe kutenga malo ambiri osungirako digito, zomwe zimapangitsa kuti zisungidwe ndi kusindikiza.
- PCM: Iyenera kufotokozera mofananamo chizindikiro cha analog, Pulse Code Modulation (PCM) ndi ma CD omwe amavomerezedwa, komanso makompyuta ndi mapulogalamu ena ojambula.
- PCM ndizosewera zosamveka komanso zopanda malire, nthawi zambiri zimakhala ngati deta yolongosola mitundu ina ya mafayilo.