Ukungaqondakali Okuvamile Ngokuphathelene Ne-Wattage noMqulu
Amplifier amandla , elinganiselwe ku-watts, ingaba indaba edidekayo futhi ngokuvamile ayiqondakali kahle. Ukungaqondakali okuvamile ukuthi ukuthambisa kunamathele ngokuqondile kumsindo noma ngevolumu. Abanye bakholelwa ukuthi ukuphindaphinda kokukhipha amandla kuzoholela ekutheni ivolumu ephezulu ephindwe kabili. Empeleni, amandla awenzi lutho ngokuzwakalayo. Ukukhishwa kwamandla kuhambisana nezinkinga ezimbili eziyinhloko:
- Ukusebenza komlomo
- Ikhono le-amplifier yokusingatha izintaba zomculo
Ukusebenza komlomo
Ukusebenza kahle kwesikhulumi, owaziwa nangokuthi ukukhulumisana kwesipikha , kuyisilinganiso sokukhishwa kwesikhulumi, esilinganisiwe kuma-decibel, ngenani elibekiwe le-amplifier amandla. Isibonelo, ukusebenza kahle kwesipikha kuvame ukulinganiswa nemakrofoni (exhunywe kumitha yeminitha yomsindo) kufakwe imitha eyodwa kusuka kusikhulumi. I-watt yamandla eyodwa inikezwa kusikhulumi futhi imitha yezinga lilinganisa ivolumu kuma-decibel. Izinga lokukhipha liholela ekusebenzeni kahle.
Abathengi bahamba ngendlela efanele noma ubuzwe obuvela ku-85dB (ukungasebenzi kahle) kufika ku-105dB (okusebenza kahle kakhulu). Njengokuqhathaniswa, isikhulumi esinamazinga angu-85 dB wokusebenza kahle sizothatha kabili amandla okukhulisa amandla ukufinyelela ivolumu efanayo njengesikhulumi esinokusebenza kahle kwe-88 dB. Ngokufanayo, isikhulumi esinesilinganiso sokusebenza kahle se-88 dB sidinga amandla angaphezu kweshumi ngaphezu kwesiphakamiso esilinganisweni se-98 dB sokusebenza kahle ezingeni elifanayo. Uma uqala ngomamukeli we-watt / 100 wesiteshi, uzodinga ama-watts angu-1000 (!) Okukhipha amandla ukuze kabili izinga levolumu elibonwayo.
Rynamic Range
Umculo unemvelo enamandla. Ishintsha njalo ngezinga levolumu kanye nemvamisa. Indlela engcono kakhulu yokuqonda umthamo womculo onamandla ukulalela ukuhlala umculo we-acoustic (un-amplified). I-orchestra, isibonelo, inamazinga amaningi wevolumu, kusukela kumavesi athule kakhulu, kuya kuma-crescendos amakhulu nakwaphakathi phakathi kokuthula nokuzwakalayo. Ububanzi bezinga levolumu lwaziwa njengebanga elishintshayo, umehluko phakathi kwezingxenye ezithambile futhi ezizwakalayo.
Uma umculo owodwa uphinde ulandelwe ngesistimu yomsindo, uhlelo kumele luvelise ibanga elifanayo ngokuzwakalayo. Uma idlalwe emuva ngezinga levolumu yesilinganiso, amavesi athambile namaphakathi omculo angadinga amandla amancane. Uma lowo owamukelayo enamamitha angu-100 wamandla ngesiteshi ngasinye, amavesi athambile namaphakathi angadinga cishe ama-10 watts wamandla. Noma kunjalo, i-crescendos emculweni ingadinga amandla angaphezulu kakhulu isikhathi esincane, mhlawumbe cishe ama-watts angu-80. Esinye isibonelo esihle. Nakuba kungumcimbi wesikhashana, ukuqhuma komgogodla kufuna amandla amaningi okwesikhashana. Ikhono lomamukeli ukuletha amandla amakhulu ngesikhathi esifushane kubalulekile ekukhiqizeni okunembile okunembile. Nakuba umamukeli angasebenzisa kuphela ingxenye encane yokukhishwa kwayo esiphezulu isikhathi esiningi, kufanele kube 'nekhanda' ukuletha amandla amakhulu ngezikhathi ezincane.