Ngaphandle kweMqulu Wokulawula - I-Dynamic Range, Compression, ne-Headroom
Izinto eziningi zithola umsindo ozwakalayo endaweni yokulalela ye-stereo noma yasekhaya. Ukulawula ivolumu yindlela eyinhloko abaningi abathola ngayo izinga lokulalela elikhululekile, kodwa akukwazi ngaso sonke isikhathi ukwenza wonke umsebenzi. Igumbi eliyinhloko lamandla, ububanzi obushukumisayo, nokucindezela okunamandla yizici ezengeziwe ezingasiza ekulaleleni induduzo.
Inhloko Eyinhloko-Ingabe Amandla Angaphezulu Lapho Ukudinga?
Ukuze umsindo wokugcwalisa igumbi, umamukeli we-stereo noma yemidlalo yaseshashalazini kufanele asebenzise amandla anele izikhulumi zakho ukuze ukwazi ukuzwa okuqukethwe. Kodwa-ke, njengoba amazinga omsindo aguquka ngaso sonke isikhathi kuwo wonke amarekhodi womculo nama-movie, umamukeli kudingeka adlulise amandla okukhishwa kwawo ngokushesha ngendlela ehambisanayo.
Ikhanda lekhanda elinamandla libhekisela ekwamukeli we-stereo / yaseshashalazini yasendlini, noma i-amplifier, ukukhishwa kwamandla ezingeni eliphakeme kakhulu ngezikhathi ezincane ukubhekana nezintaba zomculo noma imiphumela emibi kakhulu emabhayisikobho. Lokhu kubaluleke kakhulu emidlalo yaseshashalazini yasendlini, lapho izinguquko eziphezulu ngokweqile zenzeka phakathi nefilimu.
Ikamelo lekhanda elimangalisayo lilinganiselwa ku- Decibels (dB) . Uma umamukeli / amplifier enekhono lokuphinda kabili amandla ayo okukhipha amandla okuqhubekayo okwesikhashana ukuze afake ukuphakama kwevolumu, ine-3db yekhanda eliyingqayizivele. Noma kunjalo, ukuphindaphindiwe kokukhipha amandla akusho ukuthi kabili ukuvota ivolumu. Ukuze uphindwe kabili ivolumu kusuka ephusheni elinikeziwe, umamukeli / amplifier udinga ukwandisa ukukhipha amandla akhe ngesici se-10.
Lokhu kusho ukuthi uma umamukeli / amplifier ekhishwa ama-watts angu-10 endaweni ethile futhi ushintsho oluzenzekelayo kumsindo wezwi ludinga kabili ivolumu okwesikhashana, i-amplifier / i-receiver idinga ukuthi ikwazi ukukhipha ngokushesha ama-watts angu-100.
Ikhono lekhanda le-Dynamic liyabhalwa kwi-hardware yomamukeli noma i-amplifier, futhi ayikwazi ukulungiswa. Okungcono, isamukeli semidlalo yaseshashalazini okungenani okungenani ama-3db noma ngaphezulu kwekhanda eliyinhloko yilokho ozoyibuka. Lokhu kungabuye kuboniswe ngesikhala somklamo wokukhipha amandla okukhipha amandla-isibonelo, uma ukuphakama, noma okunamandla, isilinganiso sokukhipha amandla kuphindwe kabili inani le-RMS, eliqhubekayo, noma le-FTC elilinganiselwe amandla, lokhu kungaba ukulinganisa 3db ikhanda eliyinhloko elinamandla.
Uma ungajwayele ukuthi amandla okusebenza nge-amplifier asebenza kanjani, hlola isihloko sethu ngokuthi amandla amplifier ahlobene kanjani nokusebenza komsindo .
I-Dynamic Range-Soft vs Loud
Ngomsakazo, ububanzi obushukumisayo buyingxenye yesindo esikhulu kakhulu esingahlehlisiwe esakhiwe maqondana nomsindo othobekile okwamanje ozwakalayo. I-1dB iyinhlobo yevolumu encane kunazo zonke indlebe yomuntu engayibona. Umehluko phakathi kwekhonsathi enkulu ye-whisper neyomsindo omkhulu (eseceleni elifanayo kusuka endlebeni yakho) ingaba ngu-100dB.
Lokhu kusho ukuthi ukusebenzisa i-dB esikalini, ikhonsathi yedwala ingama-10 billion izikhathi eziphakeme kakhulu kunomsindo. Ngomculo oqoshiwe, i- CD evamile iyakwazi ukukhiqiza u-100db webanga eliguqukayo, kuyilapho irekhodi le-LP liphuma phezulu cishe ku-70db.
I-Stereo, abawamukelayo yaseshashalazini yasendlini, nama-amplifiers angakwazi ukukhiqiza uhla oluguquguqukayo lwe-CD noma omunye umthombo ongakhipha uhla olubanzi olunamandla kakhulu lufisa kakhulu.
Yiqiniso, inkinga eyodwa ngokuqukethwe komthombo okurekhodiwe ngobubanzi obukhulu bokulalelwayo yomsindo wukuthi "ibanga" phakathi kwezinxenye ezithambile futhi eziphakeme kakhulu zingabacasula.
Isibonelo, kumculo ongaxubekile, umsindo ungase ubonakale ugonywa yizinsimbi zangemuva nakuma-movie, ingxoxo ingase ilula kakhulu ukuze iqondakale, kanti imiphumela yemisindo ekhethekile ingase ingagcini nje kuphela kuwe kodwa nomakhelwane bakho.
Yilapho ukucindezela okuDynamic kungena khona.
I-Dynamic Compression-Ukucindezela I-Dynamic Range
Ukucindezela okunamandla akubhekiseli ezinhlobonhlobo zezintambo zokucindezela ezisetshenziselwa umsindo we-digital (cabanga i-MP3). Kunalokho, ukucindezela okunamandla kuyithuluzi evumela ukuthi umlaleli aguqule ubuhlobo phakathi kwezitho ezizwakalayo zomsindo wezingoma kanye nezingxenye ezikhudlwana zomsindo lapho udlala i-CD, i-DVD, i-Blu-ray Disc, noma enye ifomethi yefayela lomculo.
Isibonelo, uma uthola ukuthi ukuqhuma noma ezinye izakhi zomsindo kukhona kakhulu futhi ingxoxo iyathandeka kakhulu, ungathanda ukunciphisa ububanzi obushukumisayo obukhona kwi-soundtrack. Ukwenza kanjalo kuzokwenza imisindo yeziqhumkhuba kungabi ngokuzwakalayo, kodwa ingxoxo izokhala ngokuzwakalayo. Lokhu kuzomenza umsindo jikelele ube ngaphezulu ngisho, okuwusizo ngokukhethekile uma udlala i-CD, i-DVD, noma i-Disc-Blu-ray ngevolumu ephansi.
Emitholampilo yaseshashalazini noma amadivaysi afanayo, inani lokucindezela okuguquguqukayo lishintshwayo ngokusebenzisa ukulawula kokulawula okungase kubhalwe ukucindezela okunamandla, ububanzi obunamandla, noma nje i-DRC.
Izindlela ezifanayo zokulawula ukucindezela ukucindezela izinhlelo zihlanganisa i-DTS TruVolume, i-Dolby Volume, i-Zvox Accuvoice, ne-Audyssey Dynamic Volume. Ukwengeza, ezinye izinketho ezilula zokulawula / ukucindezela zingasebenza emithonjeni ehlukene (njengalapho ishintsha iziteshi kwi-TV ukuze zonke iziteshi zibe ezingeni elifanayo levolumu, noma zenze lezo zimakethe ezinkulu ngaphakathi kohlelo lwe-TV).
Okubalulekile
Indlu yenhloko ephezulu, ububanzi obushukumisayo, nokucindezela okunamandla yizici ezibalulekile ezithinta ububanzi bevolumu yomsindo etholakalayo esimweni sokulalela. Uma ukuguqula la mazinga akulungisi izinkinga onayo, cabangela ukubuka ezinye izici ezifana nokuhlanekezela kanye ne- acoustics ekamelweni .