Ma harmoniki amakuthandizani kusiyanitsa zida zoimbira zosiyanasiyana
Ngati mwaphunzira chilango chilichonse cha acoustics , teknoloji yamagetsi, kapena zamagetsi, mukhoza kukumbukira kubisala mutu wa harmonic frequency. Ndi mbali yofunika kwambiri ya momwe nyimbo zimamvekera komanso zimawonedwa. Mafupipafupi a chiyanjano ndi gawo limodzi lomwe limatithandiza kuzindikira molondola mtundu wa phokoso lopangidwa ndi zipangizo zosiyana, ngakhale pamene akusewera chimodzimodzi.
Tanthauzo la Frequency Harmonic
Nthawi zambiri maulendo a harmonic ndi maulendo angapo omwe amawoneka oyambirira, omwe amadziwika kuti nthawi zambiri. Ngati phokoso lalikulu likukhazikitsidwa pa 500 hertz , limakhala ndi nthawi yoyamba ya harmonic pa 1000 hertz, kapena kawiri kawiri kawiri kawiri. Nthawi yachiwiri ya harmonic imapezeka pa 1500 hertz, yomwe imakhala katatu nthawi zonse, ndipo nthawi yachiwiri ya harmonic ndi 2000 hertz, yomwe ili ndi quadruple nthawi zonse, ndi zina zotero.
Mu chitsanzo china, harmonic yoyamba ya frequency 750 hertz ndi 1500 hertz, ndipo yachiwiri harmonic ya 750 hertz ndi 2250 hertz. Harmoniki zonse zimakhala nthawi zonse pafupipafupi ndipo zimatha kusweka mpaka mndandanda wa zizindikiro ndi zizindikiro.
Zotsatira za maulendo a Harmonic
Pafupifupi zipangizo zonse zoimbira zimapanga mawonekedwe a mawonekedwe omwe ali ndi maulendo ofunika komanso a harmonic. Maonekedwe enieniwa amavomereza khutu laumunthu kuti lizindikire kusiyana pakati pa zida ziwiri zoyimba zoimba palimodzi pafupipafupi (mlingo) ndi mlingo (amplitude). Izi ndi momwe timadziwira kuti gitala imawoneka ngati gitala osati oboe kapena lipenga kapena piyano kapena dramu. Apo ayi, aliyense ndi chirichonse zikanamveka chimodzimodzi. Oimba aluso angathe kupanga zida zamakono pomvetsera ndi kuyerekezera maulendo a harmoniki pakati pa kusintha.
Harmonics Imatsutsana ndi Zowonjezera
Mawu akuti "overtones" amagwiritsidwa ntchito pazokambirana zokhudza maulendo a harmoniki. Ngakhale kuti harmonic yachiwiri ndi yapamwamba kwambiri, harmonic yachitatu ndi yachiwiri, ndipo motero -zigawo ziwirizi ndizosiyana. Zowonongeka zimathandiza kuti chikhalidwe chonsecho chikhale chowoneka bwino.
Kusokonezeka kwa Harmonic Pafupipafupi pa Oyankhula
Oyankhula ali ndi udindo wopereka ziwonetsero zolondola za harmonic za zida zomwe amapanga. Poyerekeza kusiyana pakati pa mauthenga omwe akubwera ndi zotsatira za okamba nkhani, chizindikiro cha Total Harmonic Distortion (THD) chimaperekedwa kwa wolankhulila aliyense-m'munsimu mpikisano, bwino wolankhula wokamba mawu. Mwachitsanzo, THD ya 0.05 imatanthauza kuti 0.05 peresenti ya phokoso lochokera kwa wokamba nkhaniyo ndi lolakwika kapena loipitsidwa.
Zoterezi ndizofunikira kwa ogula kunyumba chifukwa amatha kugwiritsa ntchito mapepala a THD omwe akuwerengedwera wokamba nkhani kuti ayese khalidwe labwino lomwe angakonde kulandira kuchokera kwa wokamba nkhaniyo. Kunena zoona, kusiyana kwa ma harmoniki ndi kochepa, ndipo anthu ambiri sadziwa kusiyana kwa theka la magawo atatu mu THD kuchokera ku wolankhula mmodzi kupita kumtsinje.
Komabe, pamene maulendo a harmonic amasokonezedwa ndi ngakhale 1 peresenti, zipangizo zojambula zimamveka zosaoneka bwino, choncho ndibwino kukhala kutali ndi oyankhula pamapeto a THD.