1. Intshayelelo kwizithethi

Isithethi sibhekisa kwisixhobo esinokuguqula imiqondiso yesandi ibe sisandi. Ngokwemigaqo yabantu abaqhelekileyo, sibhekisa kwisandisi-mandla esakhelwe ngaphakathi kwikhabhinethi yesithethi esiphambili okanye kwikhabhinethi ye-subwoofer. Emva kokuba isignali yesandi ikhulisiwe kwaye isetyenzisiwe, isithethi ngokwaso sidlala isandi ukuze sivakale. Khula.

Isithethi sisiphelo senkqubo yesandi iyonke. Umsebenzi waso kukuguqula amandla esandi abe ngamandla esandi ahambelanayo kwaye siwasasaze kwindawo. Siyinxalenye ebaluleke kakhulu yenkqubo yesandi kwaye sinoxanduva lokuguqula imiqondiso yombane ibe yimiqondiso ye-acoustic yabantu. Umsebenzi wokumamela ngqo ezindlebeni.

Indlela isithethi esakhiwe ngayo:

Izithethi ezithengiswayo ziza ngemilo nemibala eyahlukeneyo, kodwa nokuba zeziphi, zenziwe ngamacandelo amabini asisiseko:isithethiiyunithi (ebizwa ngokuba yiyunithi yaseYangsheng) kunye nekhabhinethi. Ukongeza, uninzi lwezithethi zisebenzisa ubuncinane ezimbini okanye ezimbini. Iiyunithi zesithethi ezingentla kuphela ezisebenzisa oko kubizwa ngokuba kukuveliswa kwesandi esineetshaneli ezininzi, ngoko ke i-crossover nayo iyinxalenye ebalulekileyo. Kakade ke, kunokubakho ikotoni efunxa isandi, iityhubhu eziguquliweyo, "iipayipi ze-labyrinth" ezigoqiweyo, kunye nezithethi eziqinisiweyo. Iiribhi/iibhodi zokuthintela isandi eziqinisiweyo kunye nezinye izinto, kodwa ezi zinto azibalulekanga kuyo nayiphi na isithethi. Izinto ezisisiseko zesithethi zizinto ezintathu kuphela: iyunithi yesithethi, ikhabhinethi kunye ne-crossover.

Ukuhlelwa kwezithethi:

Uhlu lwezithethi lunee-engile ezahlukeneyo kunye nemigangatho. Ngokwesakhiwo se-acoustic sezithethi, kukho iibhokisi ezingangeni moya, iibhokisi eziguquliweyo (ezibizwa ngokuba ziibhokisi ezibonisa i-frequency ephantsi), izithethi ze-radiator ezingasebenziyo, kunye nezithethi zomgca wokudlulisela. Ibhokisi ye-inverter yeyona nto iphambili kwimarike yangoku; ngokombono wobukhulu kunye nokubekwa kwezithethi, kukho iibhokisi ezimi phantsi kunye neebhokisi zeshelufu yeencwadi. Eyokuqala inkulu ngobukhulu kwaye idla ngokubekwa ngqo emhlabeni. Ngamanye amaxesha, iinyawo ezithintela ukothuka nazo zifakwa phantsi kwezithethi. Ngenxa yobuninzi bekhabhinethi kunye nokulula kokusebenzisa ii-woofers ezinkulu nezininzi, ibhokisi esuka kumgangatho ukuya eluphahleni idla ngokuba ne-frequency ephantsi engcono, inqanaba eliphezulu loxinzelelo lwesandi esiphumayo kunye nomthamo onamandla wokuthwala amandla, ngoko ke ifanelekile kwiindawo ezinkulu zokumamela okanye iimfuno ezibanzi ngakumbi. Ibhokisi yeshelufu yeencwadi incinci ngobukhulu kwaye idla ngokubekwa kwi-tripod. Iphawulwa ngokubeka okuguquguqukayo kwaye ayithathi ndawo. Nangona kunjalo, ngenxa yomthamo webhokisi kunye nomda wobubanzi kunye nenani lee-woofers, i-frequency yayo ephantsi idla ngokuba phantsi kunebhokisi yomgangatho, kunye namandla ayo okuthwala. Kwaye inqanaba loxinzelelo lwesandi esiphumayo nalo lincinci, elifanelekileyo ukusetyenziswa kwindawo encinci yokumamela; ngokwe-bandwidth encinci yokudlala, kukho izithethi ze-broadband kunye nezithethi ze-narrowband. Uninzi lwezithethi zenzelwe ukugubungela. Ibhendi yefrikhwensi ebanzi kangangoko kunokwenzeka sisithethi se-wide-band. Uhlobo oluqhelekileyo lwezithethi ze-narrow-band yi-subwoofer (subwoofer) evele ne-home theatre, esetyenziselwa kuphela ukubuyisela i-frequency ephantsi kakhulu kwibhendi yefrikhwensi encinci kakhulu; ngokwe-amplifier yamandla eyakhelwe ngaphakathi, inokwahlulwa ibe zizithethi ezingasebenziyo kunye nezithethi ezisebenzayo, eyokuqala ayinayo i-amplifier eyakhelwe ngaphakathi kwaye eyesibini inayo. Okwangoku, uninzi lwezithethi zasekhaya azisebenzi, kodwa ii-subwoofers zihlala zisebenza.

2. Intshayelelo kwiAudio

Isandi sibhekisa kwizandi ezingezizo ulwimi lomntu nomculo, kuquka izandi zendalo, izandi zezilwanyana, izandi zoomatshini nezixhobo, kunye nezandi ezahlukeneyo ezenziwe zizenzo zabantu. Isandi mhlawumbi siquka i-power amplifier, izixhobo ze-peripheral (kubandakanya i-compressor, i-effector, i-equalizer, i-VCD, i-DVD, njl.njl.), izithethi (izithethi, izithethi), i-mixer, imakrofoni, izixhobo zokubonisa, njl.njl. zongezwa kwiseti. Phakathi kwazo, izithethi zizixhobo zokukhupha isandi, izithethi, ii-subwoofer, njalo njalo. Isithethi siquka izithethi ezintathu, eziphezulu, ezisezantsi, neziphakathi, ezintathu kodwa kungekhona ezithathu ngokuyimfuneko. Imbali yophuhliso lwetekhnoloji inokwahlulwa ibe ngamanqanaba amane: iityhubhu ze-electron, ii-transistors, iisekethe ezidibeneyo, kunye nee-transistors ze-field effect.

Izixhobo zomsindo:

Izixhobo zesandi mhlawumbi ziquka ii-power amplifiers, izixhobo ze-peripheral (kuquka ii-compressors, iziphumo, ii-equalizers, ii-exciters, njl.njl.), izithethi (izithethi, izithethi), ii-mixers, imithombo yesandi (njengeemakrofoni, izixhobo zomculo, i-VCD, i-DVD) izixhobo zokubonisa Njalo njalo, yongeza iseti enye. Phakathi kwazo, izithethi zizixhobo zokukhupha isandi, izithethi, ii-subwoofers, njl. Isithethi siquka iintlobo ezintathu zezithethi, eziphezulu, ezisezantsi, neziphakathi, kodwa kungekhona ezintathu ngokuyimfuneko.