Crossover kwizithethi - yintoni nokuba kutheni na

Xa ufaka inkqubo stereo zalamaxesha umnini moto kufuneka sithathe crossover echanekileyo. Oku kukhetha ilula ukuba wazi futhi uqonda yintoni na noko kujongwe, kwaye njengenxalenye kwenkqubo esi sixhobo siza kusebenza. Ngoko ke, makhe sibone oko crossover ukuba abantetho isisiXhosa.

Iimpawu, injongo

Crossover - yinkqubo isithethi zinikwe izixhobo ezizodwa, lo msebenzi ungundoqo eliza avelise olifunayo yefrikhwensi ukuba isithethi ngasinye. Njengoko yaziwa, nayiphi na inkqubo isithethi eyenzelwe uluhlu ethile ezitsho zokusebenza. uphawu lwe output, kondliwa ikholam kuluhlu kunokukhokelela uhlaba yesandi. Ngoko ke, ukuba wenza isicelo yefrikhwensi isithethi ephantsi kakhulu kuye, ngoko ke umfanekiso isandi ziya igqwethekile. Ukuba amaza iphezulu kakhulu, ngoko ke umnini-nkqubo uza kukwazi ukumelana kuphela isandi egqwethekileyo, kodwa ukungaphumeleli eliphezulu-ugesi. Okokugqibela nje kuba nako ukuhlala besemdleni xa beqhuba indlela msebenzi.

Kwiimeko eziqhelekileyo, umsebenzi ezithethi ophezulu rhoqo - ukudlala isandi kuphela ezitsho eliphezulu. Elisezantsi frequency-iinkqubo ive zisebenza ngokwahlukileyo. Maxa wambi nkqu esekwe kwiindawo ezahlukeneyo kweli gumbi umkhweli. Kunjalo we computeryomndilili izandi rhoqo. Bondliwa kuphela kwisithethi, obalaseleyo ezitsho yee-kuluhlu.

Ngoko ke, ngokuba ezikumgangatho ophezulu ukudlalwa lengoma umculo imoto yakho kufuneka yabelwe ezitsho ezithile, wabakhonza ngokungqongqo kwizithethi ezithile. Ukulungiselela le njongo kunye nemfuneko crossover umsindo.

njani

uyilo ifowuni ilula. Esi sisihluzo frequency ezimbini isebenza ngolu hlobo. Ngoko, xa ukungcola nezihlandlo 1000 Hz, omnye isihluzo ezimbini liyakunikezela ezitsho ngaphantsi kweli nani. Isihluzo yesibini iya kusebenza kunye yefrikhwensi ngaphezu uphawu. Amacebo amagama abo. Elisezantsi lokuphumelela-yenzelwe ukusebenza ezitsho eliphantsi ukuya ku-1000 Hz. iinkqubo High-yokupasa ezitsho kuphela kuluhlu ngasentla 1000 Hz.

Ngokwalo mgaqo basebenza isixhobo ndlela-mbini. Noko ke, kwimarike namhlanje, kukho indlela ezintathu-crossover. Umahluko ongundoqo apha - omnye filter, ekwaziyo yokuphatha ezitsho eliphakathi ukusukela kuma-600 Hz ukuya 1000 Hz.

Okunye ngococo zitsho audio nokondla ukuba izithethi esihambelanayo ezi ezitsho kukhokelela isandi ngcono ngaphakathi isithuthi.

features Technical crossovers

Uninzi izixhobo namhlanje inductors kunye capacitors. iimveliso ixabiso kwakheka kuxhomekeka kwinani kunye nomgangatho mveliso ezi zinto.

Kutheni capacitor kunye coil inxalenye crossover ukuba izithethi? Le nxalenye ngexabiso kakhulu elula. Baya nangeendleko bakwazi ukusingatha amaza ezahlukeneyo. Le capacitor inokwabela ize isebenze aqhelelkileyo, lo gama i-coil iMisebenzi ezitsho eliphantsi. Abavelisi ngobuciko usebenzise kwezi Propati kwaye wenza isixhobo elula ngokokwakheka kodwa esebenzayo.

Inani macandelo izidubuli kuchaphazela umthamo okucoca: 1 - Sebenzisa into enye, 2 - izinto ezimbini. Kuxhomekeka inani amacandelo ngendlela ekhutheleyo njengoko inkqubo crossover yesekethe okucoca kwi ezitsho ezahlukeneyo ayifanelekanga ukuba isetyenziselwe iindlela ezithile. Oko kuthathwa: kokukhona le sekethe na izinto lovukelo, isithethi crossovers elingcono uza ukuhluza uphawu. Izikim product aneempawu ezithile. Oku kubizwa ngokuba "ojonge yokudodobala koqoqosho." Ngamanye amazwi, ukuba uvakalelo. Kuxhomekeka kwinqanaba "steepness olusathe", zonke iimveliso ezikhoyo lungohlulwa lube imodeli yokuqala, ibanga lesibini, kwesesithathu nakwesesine isizukulwana.

izixhobo esebenzayo neyokwenziwa

crossover UMSI kuba umsindo - unokuphelisa ixhaphakileyo. Ke kusoloko kufunyanwa emalikeni namhlanje. Nanjengoko igama layo lixela, kuba esi sixhobo musa kufuneka uphefumle olongezelelweyo ngamandla. Ngoko, umnini wesithuthi iya kuba ngokukhawuleza kwaye kube lula kakhulu ukuba enze ukufakelwa izixhobo zesandi. Igalelo elibi eli qela kwezixhobo ukuba kube lula akusoloko isiqinisekiso esemgangathweni.

Ngenxa inkqubo yesekethe kwisixando ithatha yinxalenye amandla ukuze ukusebenza kwenkqubo ye lokucoca ulwelo. Ngelo xesha linye amacandelo izidubuli utshintshe kwisigaba shift. Ngokwendalo, oku ethile ezinzulu. Nangona kunjalo, oko akuthethi kuthi banciphe kangangoko ukwenza ngokulinganiswa. Oku kuqhwalela kwacala akanalo crossover esebenzayo. Inyaniso kukuba nangona uyilo entsonkothileyo kakhulu, rhoqo flow ezirekhodiweyo kubo ecociweyo kakhulu ngcono. Ngenxa yobukho kwisekethe ayikho kuphela ohlobo ngakumbi capacitors, kodwa semiconductors, abaphuhlisi kudala izixhobo ezikumgangatho ophezulu kunye olunemigqaliselo compact. crossover Active lunqabe ezifunyanwa kumnqongo owahlukileyo. Noko ke, kuyo nayiphi na mshini kuye okucoca esebenzayo ezinjalo.

Indlela ukuba uqwalasele isixhobo ngokuchanekileyo?

Ukuze ufumane isandi umgangatho uphezulu emotweni yakho, kufuneka ukhethe amaza ekunene apho bonke kwakuwo iya kunqunyulwa. Kwimeko izixhobo esisebenzayo bands ezintathu, kufuneka ufumane ezimbini kwindawo cut-off. Amanqaku ubuso yokuqala kuluhlu phakathi ezitsho ephantsi ophakathi. Okwesibini - umahluko phakathi rhoqo phakathi kunye phezulu.

Indlela yokubala izandla zakho?

yokubala crossover kuba umsindo - yinto yinkqubo ebalulekileyo. Ukanti akukho umenzi namnye unako ukuvelisa inkqubo ephilileyo, leyo kuba nako ukuvelisa isandi umgangatho ophezulu kwiimeko ezininzi ezahlukeneyo. Kuba njalo isebenzisa subwoofers. abathetha yee-uluhlu asetyenziswa eliphakathi. Kodwa xa wonke sakhiwo liya kulila ixilongo, oko kusenokuba kwenze abanye ukudideka. Kungenxa yoko le nto kukho crossover kwi umsindo - ethile isithethi yaba umqondiso kuphela kumaza ethile. Ukuze inkqubo vuvabyi okanye nasiphi na isitishi kwifowuni yokuqala wokukhulisa liqhagamshelene, lahlule umqondiso. Esi sisihluzo. Apha kwezithethi sele crossovers zezenzi, ezithi zenziwe wayilwa nabenzi.

Kodwa kuthekani ukuba ufuna ukuba bahlule rhoqo isandi kwi umgaqo eyahlukileyo? Akuyomfuneko ukuba ukubala ngesandla nantoni - kweli xesha lethu eliphambili kwezobugcisa kuba imisebenzi kakhulu elula apho software. Ngoko ke ukuba ezi zibalo kukho inkqubo, umzekelo crossover Elements Calculator.

Inyathelo lokuqala le program ilawulwa ixabiso ukumelana LF kwaye izithethi RF, nto leyo kangangokuba ohms-4. Ngaphezulu zifakwa rhoqo ukuba isixhobo kufuneka yahlulwe. Ngoko nangoko baqalise umyalelo crossover. Emva koko, cinezela iqhosha kwaye alinde de nkqubo iza kubangela. Ngenxa yoko, kuya kubuya itshati ukuthi libala capacitors eziyimfuneko kunye ohlobo igalelo parameters.

ukhethe Iimpawu

Imarike linikezela ngothotho lwezixhobo ukuba ayahluka umgangatho, ixabiso, umthengisi-specific. Khetha crossover kuba izithethi akukho lula - awukwazi ukuya nje uthenge into oyithandileyo. Lo kukhetha ndikwenzileyo zizithethi ezithile. Cingela xa subwoofer ovelisa a njalo kuluhlu-18 ukuya 200 Hz, iphinde izivelise kwakhona ezitsho midrange ukusuka 200 ukuya ku-1000 Hz, kwaye eliphezulu - ukususela 1000 ukuya 16000 Hz. Kulo sikhulisa eyakhelwe-ngaphakathi kuye akukho lokucoca kwaye lokuyivelisa ezitsho kumqolo ukususela nge-18 20,000 Hz. Kule meko ethile, kufuneka indlela ezintathu-crossover, ikwazi ukuphumeza ucoco kwezi zibe.

Kwakhona, xa ukhetha imali ingqalelo inani bands. Enye parameter ebalulekileyo - esiwubonayo uluhlu. Qiniseka ukuba bakuthathele ingqalelo bandwidth. izixhobo Multilayer ukuba uvakalelo oluphezulu, unako kakhulu ukuphucula umgangatho ephilileyo.

isiphelo

Ngoko ke, safumanisa ukuba crossover yaye yintoni umsebenzi lenza. Njengoko ubona, oku kakhulu njengento ebalulekileyo kwinkqubo emotweni odiyo.