Uma kuziwa ekugcineni ukuhlanzeka komsindo, kunezinhlobo eziningi zezinto ezihlukene okumelwe ziqaphele futhi zicatshangelwe. Nakuba iningi elingaziwa kakhulu, ukuhlukaniswa kwe-Intermodulation (okufingqiwe njenge-IMD) kungaba yinto eqondile uma ibuyisela ikhanda layo elibi, eliphikisayo. Ngokungafani nezinye izinhlobo zokuphazamiseka okuhlobene nomculo, ukuhlukaniswa kwe-Intermodulation kubonakala kakhulu endlebeni futhi kungaba yinto enzima kunazo zonke ukunciphisa izinhlelo zomsindo.
Kuyini Ukuphazamiseka Kwezinhlayiyana?
Ukuphazamiseka kwe-Intermodulation kuvame ukutholakala njenge- amplifier noma ukucaciswa kwangaphambili kwe-amplifier (kodwa kungaba khona kwezinye izingxenye zomsindo njengezikhulumi, ama-CD / i-DVD / abadlali bezindaba, njll.) Echaza ukuthi ama-non-harmonic ahambelana nesignali yokufaka. Njengoba kufana nokuPhambene Okuphelele Kwe-Harmonic , ukuhlukaniswa kwe- Intermodulation kulinganiswa futhi kuboniswe njengephesenti yesignali yenani eliphelele. Futhi njengoba nje nokuHlanganiswa Konke kweHarmonic, izinombolo eziphansi zingcono ekusebenzeni ngcono.
Ukuphazamiseka kwe-Intermodulation kungenzeka uma izibonakaliso ezimbili noma ngaphezulu zixutshwe ngedivaysi engeyona line-amplifier. Amathoni ngamunye asebenzisana, enza ama-amplitudes ashintshiwe (noma ahlelwe). Lokhu kubangela ukwakheka kwama frequ - ngokuvamile okubhekwa ngokuthi "amabhande amaceleni" - engekho kwisignali sokuqala. Njengoba lezi zindlela ze-sideband ziphuma ngokulingana nokuhluka kwamathoni asendulo, zibhekwa njengezingekho-harmonic futhi ezingathandeki kakhulu ngenxa yemvelo engavamile.
Ukufanekisa, tshela ukuthi insimbi eyodwa idlala inothi futhi ikhiqiza imvamisa eyisisekelo ye-440 Hz. Ama-harmonic frequencies (inani eliphindaphindiwe elisezingeni eliyisisekelo) lensimbi eyodwa ku-880 Hz, 1220 Hz, 1760 Hz, nokunye. Uma i-amplifier idala imvamisa engeyona i-harmonic ye-300 Hz kanye nemvamisa eyisisekelo ye-440 Hz, imvamisa yesithathu ye-740 Hz izokwenziwa kabusha (440 Hz + 300 Hz), kanti i-740 Hz ayiyona i-harmonic ye-440 Hz. Ngakho-ke, kuthiwa i-Intermodulation Distortion ngoba iphakathi kwama-harmonic frequencies.
Okwenza Ukuphazamiseka Kwezimpawu Zokubambisana Kubalulekile
Kusukela ukuhlukaniswa kwe-Intermodulation kungavumelani (hhayi i-harmoniki), kuyisilinganiso esinengqondo kakhulu. Futhi uma ukhona, kulula kakhulu ukutholeka indlebe kunokonakala okungahambisani ne-harmonic, ngoba i-harmonics ngokuvamile ikhona emasayini alalelwayo noma kunjalo. Kodwa kumazinga aphansi wevolumu kanye / noma ngomculo olula, ukuhlukanisa kwe-Intermodulation kungenzeka kungabonakali kakhulu. Amathoni ahlukene angakalizwa ngokuzwakalayo. Kodwa uma ivolumu ikhuphuka kuze kufike iphuzu lapho kungekho ukulingana okwenzeka ngaphakathi kwe-amplifier, ukuguqulwa kanye nesizukulwane esingafuneki sezingxenyana ezidakazayo noma ukusikhipha isignali yangempela.
Lo mphumela uhlanganiswe nezinhlobo zomculo eziyinkimbinkimbi (isib. Orchestra) lapho kukhona ukuxhumana okukhulu phakathi kwazo zonke izikhathi. Futhi umphumela ungaba yindalo yomsindo ophumelela ngokucacile imininingwane ye-sonic nokucacile. Ngcono kakhulu, ukuhlukaniswa kwe-Intermodulation kuholela emculweni-, embozwe, noma emculweni ozwakalayo. Okubi nakakhulu, konke kuzwakala kunzima futhi / noma kuphazamiseke kakhulu.
Kodwa-ke, njengokungahambisani okuphelele kwe-Harmonic, ukuhlukanisa ukuhlukaniswa kwe-Intermodulation ngokuvamile kuphansi kakhulu kangangokuthi akufanelekile. Ama-amplifiers amaningi anamuhla aklanyelwe kahle ngokwanele ukwenza ukuhlukaniswa kwe-Intermodulation okungabalulekile. Khumbula ukuthi izindlebe zakho yijaji elingcono lekhwalithi ezwakalayo, ngakho-ke ungahluleli izingxenye kuphela ngokushicilelwa kokuhlukaniswa kwe-Intermodulation.