Ingaba iRhafu yeSampuli ifuthe umgangatho weMculo?
I-kHz ifutshane ne-kilohertz, kwaye imilinganiselo yobunzima (imijikelezo yesibini). Ngomculo wedijithali, lo mlinganiselo uchaza inani leenkcukacha ezisetyenzisiweyo kwisibini ukumela isandi se-analog kwifomu yedijithali. Ezi chunks zedata ziyaziwa njengezinga lokuthayibha okanye ukutshekisha kwexesha.
Le nkcazo idla ngokudibanisa nelinye igama elidumileyo kwi-digital audio, ebizwa ngokuba yi- bitrate (ilinganiswe kwi-kbps). Nangona kunjalo, umahluko phakathi kwala magama amabini kukuba i-bitrate iyimilinganiselo yokwenza isampuli ubuninzi kwisibini (ubukhulu bezinto ezincinci) kunokuba inani leenkcukacha (ubukhulu).
Qaphela: i- kHz ngamanye amaxesha ibizwa ngokuba yintlawulo yesampula, ixesha lokusampula, okanye imijikelezo yesibini.
IiSampuli eziqhelekileyo IiRhafu ezisetyenzisiweyo kwi-Digital Music Content
Kwizaziso zedijithali amazinga amaninzi aqhelekileyo oza kuhlangana nawo aquka:
- 8 kHz yentetho, iincwadi zomsindo , njl.
- I-22 kHz yee-analog mono zokurekhoda ezifana neirekodi ze-vinyl kunye neetereteti
- 32 kHz yokusakaza umculo, iziteshi zerediyo
- I-44.1 kHz isetyenziselwa iiCD kunye ne-standard de facto yomculo olandwayo (njenge-iTunes) kwiifomathi ezifana ne- MP3 , AAC , WMA kunye nabanye
- I-48 ne-96 kHz isetyenziselwa izixhobo ezicacileyo eziphezulu kunye nokuvakala kwengcali
Ngaba i-kHz InokuQinisekisa umgangatho weZandi?
Kwiingcamango, ukuphakama kwexabiso le-kHz elisetyenzisiweyo, kungcono umgangatho ozwakalayo uya kuba. Oku kubangelwe kwiinkcukacha ezininzi zeetayitile ezisetyenziselwa ukuchaza ifom ye-analog.
Oku kuqhelekileyo kwimeko yomculo wedijithali equkethe umxube odibeneyo wee-frequencies. Nangona kunjalo, le ngqungquthela iwa phantsi xa ujongana nezinye iintlobo zomsindo we-analog njengentetho.
Isampuli esithandwayo samphando yokuthetha ngu-8 kHz; ngendlela engezansi kwekhwalithi yeCD audio kwi-44.1 kHz. Oku kungenxa yokuba ilizwi lomntu linamabala aqhelekileyo malunga ne-0.3 ukuya ku-3 kHz. Ngalo mzekelo engqondweni, i-kHz ephezulu ayisoloko ithetha umsindo wekhwalithi engcono.
Yintoni enye ukuba ukunyuka kwenyuka kumazinga aninzi abantu abakwaziyo ukuva (ngokuqhelekileyo malunga ne-20 kHz), kuphakanyisiwe ukuba le mijelo engenakulungiswayo ingathintela kakubi umgangatho ozwakalayo.
Unokuvavanya oku ngokuphulaphula into ethile kwi-ultra frequency frequency ifowuni yakho yesandi isekela kodwa ukuba akufanele uve, kwaye unokufumanisa ukuba kuxhomekeke kwisixhobo sakho, uya kuphulaphula ukukhona, ikhwelo kunye nezinye izandi .
Ezi zandi zithetha ukuba izinga lesampuli libekwe phezulu. Unokuthenga izixhobo ezahlukeneyo ezinokuxhasa ezo zihlandlo okanye ukunciphisa izinga lokuthayibha kwizinto ezinokulawulwa kakhulu, ezifana ne-44.1 kHz.