Thola amaqiniso ngamaCD omculo namafomethi e-disc ahlobene
Nakuba ama-CD aqoshiwe ngaphambilini alahlekelwe ukukhanya kwawo ngokulula kokusakazwa komculo we- digital nokulandwa , yi-CD eyaqala ukuguqulwa komculo we-digital. Abaningi basathanda ama-CD futhi bobabili bathenga futhi badlale nabo njalo. Nakhu okudingeka ukwazi mayelana nama-Audio CD, namafomethi ahlobene ne-disc.
I-Audio CD Ifomethi
I-CD imele iCompact Disc. I-Disc Compact ibhekisela kokubili i-disc kanye nefomethi yokudlala yokulalelwayo yedijithali ithuthukiswe yi-Philips no-Sony lapho umsindo ukhonjisiwe ngekhodi, efana nendlela idatha yekhompuyutha efakwe ngayo (1 no-0), ibe yizintambo kwi-disc, besebenzisa inqubo ebizwa nge- PCM okuyinto ukumelwa kwezibalo zomculo.
I-CD yokuqala yokuqopha yenziwa eJalimane ngo-Agasti 17, 1982. Isihloko sokuqala kokuqoshwa kwe-CD ephelele: uRichard Strauss '- Alpine Symphony . Kwakusekupheleni kwalowo nyaka, ngo-Okthoba 1 ka-1982, abadlali beCD babekhona e-US naseJapane. I-CD yokuqala esithengisiwe (kuqala eJapane) kwakuyi- 52 Street Street kaBilly Joel eyayikhululwe ngaphambilini nge-vinyl ngo-1978.
I-CD iqalile ukuguqulwa kwedijithali kumsindo, i-PC yamageyimu, izinhlelo zokusebenza zesitoreji se-PC, futhi inikele ekuthuthukiseni i-DVD. I-Sony ne-Philips babamba ngokubambisana amalungelo obunikazi ekuthuthukiseni ubuchwepheshe be-CD ne-CD player.
Ifomethi ye-CD evamile yokulalelwayo ibizwa nangokuthi "i-Redbook CD".
Ukuze uthole olunye ulwazi emlandweni we-CD yomsindo, hlola umbiko ovela ku-CNN.com.
Futhi, hlola isithombe nokubuyekezwa okuphelele (okubhalwa ngo-1983 ngu-Stereophile Magazine) we-CD yokuqala umdlali othengiswe emphakathini.
Ngaphezu kokulalelwayo okungakahlelwa ngaphambili, ama-CD angasetshenziswa futhi kwezinye izinhlelo zokusebenza eziningana:
- I-CD-R - i-CD-R imele i-CD-Eqoshiwe. Lezi discs zingasetshenziswa ukurekhoda noma "ukushisa" umculo noma idatha usebenzisa CD Recorder (umculo kuphela) noma PC (umculo noma idatha). Amanye ama-CD-R akhethwe ukuqopha umculo kuphela kanti abanye bangabhala kokubili umculo noma idatha. I-CD-R ingabhalwa kuphela kanye.
- I-CD-RW - Amakhono afanayo njenge-CD-R, ngaphandle kokuthi i-CD ingasuswa futhi isetshenziswe kabusha (i-RW isho ukuthi iyabhalwa kabusha).
- I-MP3-CD - I- MP3 MP3 ingaba ama-CD-R noma ama-RW amafayela omculo we-MP3 alotshiwe, esikhundleni samafayela ajwayelekile we-audio audio CD. Lezi diski zingadlalwa kuma-CD amaningi, ama-DVD, nama-Blu-ray Disc abadlali (udinga ukuhlola izici zomdlali).
- I-JPEG CD ye-Photo - I-JPEG CD ye-Photo ingaba i-CD-R noma i-disc enezithombe kuso kulotshwe kwifomethi yefayela le-JPEG. Ama-CD we-JPEG ama-CD angadlalwa kuma-PC kanye neCD ehambisanayo, i-DVD, nama-Blu-ray Disc.
- VideoCD - Ngaphezu kokulalelwayo nezithombe, ungaphinda urekhode ividiyo kwi-CD . Lokhu akufani ne-DVD, enekhwalithi ephakathi kwama DVD neVHS amafomethi. Futhi, amavidyo evidiyo awadlaleki ngempela kuma-CD abadlali, ngaphandle uma umdlali we-CD enokuxhumeka komkhiqizo wevidiyo (okungenakwenzeka) - nakuba abadlali bevidiyo ye-VideoCD bebelokhu bevame kakhulu ezimakethe eziningi zase-Asia. I-VideoCDs iyadlala kuma-DVD ahambisanayo nabadlali be-Blu-ray disc.
I-HDCD
I-HDCD iyinhlobonhlobo yezinga elilalelwayo le-CD elidlulisela ulwazi lwomsindo olugcinwe kwisignali se-CD ngama-4-bits ( ama-CD asekelwe ebuchwepheni bokulalelwayo bama- 16bit ) kuma-20bits, i-HDCD ingafaka amandla we-sonic we-technology yamanje ye-CD kumazinga amasha, kodwa okwamanje kunika amandla, ama-CD ekhompyutheni e-HDCD adlalwa kumaqembu angewona i-HDCD CD (abadlali abangenawo i-HD kuphela abengaziboni "ama-bits" engeziwe ngaphandle kokunyuka kwentengo ye-software ye-CD. Futhi, njenge-by-product ye-circuitry ye-filtering eqondile kuma-HDCD chips, ngisho nama-CD "ajwayelekile" azozwakala egcwele futhi enemvelo kwi-CD player ene-HDCD.
I-HDCD yasungulwa ekuqaleni yiPacific Microsonics, futhi kamuva yaba impahla ye-Microsoft. Idokhumenti yokuqala ye-HDCD yakhululwa ngo-1995, futhi nakuba ingakaze ifinyelele ifomethi yeCD Redbook, kukhishwe iziqu ezingaphezu kuka-5 000 (hlola uhlu oluthile).
Uma uthenga ama-CD omculo, bheka ama-HDCD okuqala ngemuva noma emaphaketheni wangaphakathi. Kodwa-ke, kukhona ukukhishwa okuningi okungase kungabandakanyi ilebula le-HDCD, kodwa, kungase kube namadiski we-HDCD. Uma unomdlali we-CD ofaka i-HDCD yokumisa kabusha, uzothola ngokuzenzakalelayo futhi unikeze izinzuzo ezengeziwe.
I-HDCD ibizwa nangokuthi i-High Definition Compatible Digital, i-High Definition Compact Digital, i-High Definition Compact Disc
SACD
I-SACD (i-Super Audio Compact Disc) yifomethi ye-disk audio audio-resolution eyenziwe ngu-Sony no-Philips (ophinde wahlakulela i-CD). Ukusebenzisa ifomu lefayela le-Direct Stream Digital (DSD), i-SACD inikeza ukukhiqizwa okuzwakalayo okunembile kune- Pulse Code Modulation (PCM) esetshenziselwa ifomu le-CD yamanje.
Ngenkathi i-CD ejwayelekile ifakwe ku-44.1 kHz isampuli sampula , amasampuli e-SACD ku-2.8224 MHz. Futhi, ngomthamo wokugcina wama-gigabytes angu-4.7 ngediski (njenge-DVD), i-SACD ingakwazi ukufaka izingxube ezihlukene ze-stereo neziyisithupha zamaminithi angu-100 ngayinye. Isakhiwo se-SACD sinamandla okubonisa isithombe nesithombe sombhalo, njengamanothi e-liner, kodwa lesi sici asifakiwe kuma-disc amaningi.
Abadlali be-CD abakwazi ukudlala ama-SACD, kodwa abadlali be-SACD babuyela emuva behambisana namaCD ajwayelekile, kanti amanye ama-disk e-SACD angama-double layer-disk ne-PCM okuqukethwe okungadlalwa kuma-CD ajwayelekile. Ngamanye amazwi, i-disk efanayo ingabamba kokubili i-CD version kanye ne-SACD version yezinto eziqoshiwe. Lokhu kusho ukuthi ungakwazi ukutshala izimali ezimbili ze-SACD ukuze udlale kumdlali wakho we-CD wamanje bese ufinyelela okuqukethwe kwe-SACD kwidiski efanayo kamuva kumdlali ohambisana ne-SACD.
Kumele kuqashelwe ukuthi akuzona zonke izinhlaka ze-SACD ezine-layer ejwayelekile ye-CD - okusho ukuthi kufanele uhlole ilebuli ye-disc ukuze ubone ukuthi i-SACD disc ethile ingadlala yini kumdlali ojwayelekile we-CD.
Ngaphezu kwalokho, kukhona ama-DVD, ama- Blu-ray, kanye ne-Ultra HD Disc abadlali abangase badlale i-SACDs.
Ama-SACD angangena ku-2-channel nobe multi-channel izinguqulo. Ezimweni ezine-SACD ine-CD inguqulo yediski, i-CD izohlala iziteshi ezimbili, kepha isendlalelo se-SACD ingaba ngu-2 noma ingu-multi-channel version.
Enye into okumele ikhombise ukuthi i-DSD yokufometha ifomethi yokusetshenziswa kwefayili esebenzisa ama-SACD manje isetshenzisiwe njengenye yamafomethi atholakalayo asetshenziselwa ukulandwa kwamazwi we- Hi-Res . Lokhu kunikeza abalaleli bomculo ukuthi bathuthukiswe ikhwalithi kwifomethi engeyona yomsindo we-audio.
I-SACD ibizwa nangokuthi i-Super Audio CD, i-Super Audio Compact Disc, i-SA-CD