Nyimbo zopanda zingwe ndikutha kumvera nyimbo popanda mawaya pakati pa okamba anu ndi makina anu a stereo. Ndi teknoloji yomwe imagwiritsa ntchito mafunde a wailesi kufalitsa chizindikiro cha audio kuchokera ku gwero kupita kwa okamba. Amadziwikanso kuti kukhulupirika opanda zingwe kapena olankhula Wi-Fi.
M'nkhaniyi, ndifotokoza momwe zimagwirira ntchito komanso chifukwa chake zikuchulukirachulukira.
Olankhula Opanda Ziwaya: Amagwira Ntchito Bwanji?
Njira ya Infrared
Oyankhula opanda zingwe alibe kulumikizana kwachindunji ndi stereo system kapena gwero lina. M'malo mwake, dongosololi liyenera kutumiza chizindikiro kuti okamba amatha kunyamula ndi kusandulika kukhala magetsi kuti apange mphamvu ya mawu mkati mwa wokamba nkhani. Ndipo pali njira imodzi yochitira izi: ma infrared signature. Zili ngati momwe zowongolera zakutali zimagwirira ntchito. Makina a stereo amatumiza kuwala kwa infrared, komwe sikuwoneka ndi maso. Dongosololi limanyamula chidziwitso ngati ma pulses, ndipo olankhula opanda zingwe amakhala ndi masensa omwe amatha kuzindikira kufalikira uku.
Sensa ikazindikira chizindikirocho, imatumiza zizindikiro zamagetsi ku amplifier. Amplifier iyi imawonjezera mphamvu ya kutulutsa kwa sensa, komwe kumafunikira kuyendetsa koyilo ya mawu muzokamba. Pambuyo pake, kusinthasintha kwamagetsi kumapangitsa kuti magineti amagetsi a mawu asinthe polarity mwachangu. Izinso zimapangitsa kuti diaphragm ya wolankhulayo igwedezeke.
Zovuta
Kugwiritsa ntchito ma infrared sign kwa ma speaker opanda zingwe kuli ndi zovuta zina. Kwa imodzi, mtengo wa infrared umafunika njira yomveka kuchokera ku stereo system kupita kwa wokamba nkhani. Chilichonse chotsekereza njira chimalepheretsa kuti siginecha ifike kwa wokamba nkhani ndipo sichimamveka. Kuphatikiza apo, ma infrared sign ndi ofala kwambiri. Zinthu monga zowongolera zakutali, magetsi, ngakhalenso anthu amatulutsa ma radiation a infrared, zomwe zingayambitse kusokoneza ndikupangitsa kuti wokambayo avutike kuzindikira chizindikiro chomveka bwino.
Ma Radio Signals
Palinso njira ina yotumizira ma sigino opanda zingwe: wailesi. Mawayilesi samafunikira mzere wowonera, kotero simuyenera kuda nkhawa ndi chilichonse chotsekereza njira. Kuphatikiza apo, ma siginecha a wailesi sangasokonezedwe, kotero mutha kusangalala ndi nyimbo zanu popanda kung'ung'udza kapena kusagwirizana.
Upangiri Woyambira pa Mafunde Onyamula ndi Zizindikiro Zosinthira
Kodi Carrier Waves ndi chiyani?
Mafunde onyamulira ndi mafunde a electromagnetic omwe amasinthidwa ndi chizindikiro chokhala ndi chidziwitso chotumizira opanda zingwe. Izi zikutanthauza kuti amanyamula mphamvu kuchokera kumalo ena kupita kwina, monga kutentha ndi kuwala kuchokera ku Dzuwa kupita ku Dziko Lapansi, kapena chizindikiro cha audio kuchokera ku transmitter kupita ku cholandira chamutu. Mafunde onyamulira ndi osiyana ndi mafunde omveka, omwe ndi mafunde opangidwa ndi makina, chifukwa amatha kuyenda mopanda phokoso ndipo samalumikizana mwachindunji ndi mamolekyu a sing'anga.
Kodi Modulating Signals ndi Chiyani?
Ma modulating siginecha amagwiritsidwa ntchito kusinthira siginecha yonyamulira, ndipo kwenikweni ndi ma siginoloji amawu omwe amapangidwira madalaivala apamutu. Pali njira zingapo zomwe siginecha yosinthira imatha kusinthira mafunde onyamula, monga pafupipafupi kusinthasintha (FM). FM imagwira ntchito popangitsa kuti siginecha yosinthira isinthe kuchuluka kwa mafunde onyamula.
Wireless Analogi Audio Transmission
Mahedifoni opanda zingwe nthawi zambiri amagwira ntchito pafupi ndi 2.4 GHz (mawayilesi pafupipafupi), omwe amapereka ma waya opanda zingwe mpaka 91 m (300 ft). Kusunga kusiyanasiyana kwa ma frequency onyamula onyamula kukhala otsika komanso achidule, siginecha yamawu imakulitsidwa kokha pomwe wolandila mahedifoni atsitsa. Zomvera za stereo zimatumizidwa ndi kuchulukitsa ndi kuchulukitsa musanayambe komanso pambuyo pakusintha pafupipafupi.
Wireless Digital Audio Transmission
Nyimbo zamagetsi amapangidwa ndi zithunzi pompopompo za matalikidwe a siginecha yomvera ndipo imayimiriridwa ndi digito. Ubwino wamawu a digito ungatanthauzidwe ndi kuchuluka kwake kwachitsanzo komanso kuzama pang'ono. Zitsanzo mlingo umatanthawuza kuchuluka kwa ma audio amplitudes omwe amatsatiridwa pa sekondi iliyonse, ndipo kuzama kumatanthawuza kuchuluka kwa ma bits omwe amagwiritsidwa ntchito kuyimira matalikidwe a zitsanzo zilizonse.
Kutsiliza
Chifukwa chake, kuti tifotokoze mwachidule, mafunde onyamula ndi mafunde amagetsi omwe amanyamula mphamvu kuchokera kumalo ena kupita kwina, ndipo ma modulating siginecha amagwiritsidwa ntchito kuwongolera siginecha yonyamulira, yomwe kenako imatumizidwa ku cholandila chamutu. Kutumiza kwa audio kwa analogi opanda zingwe kumachitika kudzera pakusintha pafupipafupi, ndipo kutumizirana ma audio kwa digito kumachitidwa kudzera pa ma siginecha amawu a digito.
Kumvetsetsa Dziko la Zikwangwani Zowulutsa
Zoyambira pa Radio Waves
Mafunde a wailesi ndi gawo la ma electromagnetic spectrum, limodzi ndi kuwala ndi infrared. Kuwala kowoneka kumakhala ndi kutalika kwa mawonekedwe a 390 mpaka 750 nanometers, pomwe kuwala kwa infrared kuli ndi utali wautali wa 0.74 micrometer mpaka 300 micrometer. Mafunde a wailesi, komabe, ndiwo akulu kwambiri pagululi, okhala ndi kutalika kwa milimita imodzi mpaka 1 kilomita!
Mafunde a wailesi ali ndi maubwino angapo kuposa mitundu ina ya ma radiation a electromagnetic, koma amafunikira zigawo zingapo kuti achoke pa stereo system kupita ku speaker. Cholumikizira cholumikizidwa ku makina a stereo chimatembenuza ma siginecha amagetsi kukhala mafunde a wailesi, omwe amawulutsidwa kuchokera mu mlongoti. Kumbali ina, mlongoti ndi cholandirira pa sipika yopanda zingwe zimazindikira chizindikiro cha wailesi, ndikuchisintha kukhala chizindikiro chamagetsi. Amplifier ndiye imakulitsa mphamvu ya siginecha kuyendetsa choyankhulira.
Ma Radio Frequency ndi Kusokoneza
Maulendo a wailesi Ndikofunikira chifukwa mawayilesi ogwiritsa ntchito ma frequency ofanana amatha kusokonezana. Ili likhoza kukhala vuto lalikulu, kotero maiko ambiri akhazikitsa malamulo omwe amachepetsa mitundu ya mawailesi a wailesi zida zosiyanasiyana zimaloledwa kupanga. Ku United States, magulu a ma frequency omwe amaperekedwa ku zida ngati ma speaker opanda zingwe akuphatikizapo:
- 902 mpaka 908 megahertz
- 2.4 mpaka 2.483 gigahertz
- 5.725 mpaka 5.875 gigahertz
Mafupipafupi amenewa sayenera kusokoneza mawailesi, wailesi yakanema, kapena zolumikizirana.
Pulogalamu ya Bluetooth
Bluetooth ndi protocol yomwe imalola zida kulumikizana wina ndi mnzake. Izi zikutanthauza kuti olankhula opanda zingwe amatha kukhala ndi zowongolera kupitilira voliyumu ndi mphamvu. Ndi njira ziwiri zoyankhulirana, mutha kuwongolera nyimbo yomwe ikuseweredwa kapena wayilesi yomwe makina anu akuyankhidwa osadzuka ndikusintha pamakina akulu. Ndi zabwino bwanji zimenezo?
Kodi Magic Behind Wireless Bluetooth speaker ndi chiyani?
Sayansi Yomveka
Oyankhula opanda zingwe a Bluetooth ali ngati mankhwala amatsenga a mawaya, maginito, ndi ma cones onse amagwira ntchito limodzi kuti apange phokoso lokoma la nyimbo. Koma kwenikweni chikuchitika ndi chiyani?
Tiyeni tiwononge:
- Waya wachitsulo wosunthika, womwe umadziwika kuti koyilo ya mawu, umakopeka ndi maginito amphamvu mkati mwa cholankhulira.
- Kuzungulira kwa mawu ndi maginito zimagwirira ntchito limodzi kupanga kugwedezeka komwe kumakhudza kamvekedwe kapena kamvekedwe ka mawu.
- Mafunde amawu awa amakulitsidwa kudzera mu koni / kuzungulira ndikulowa m'makutu anu.
- Kukula kwa cone / kuzungulira kumakhudza kuchuluka kwa wokamba nkhani. Kukula kwa koni, komwe wolankhulira kumakulira komanso kukweza mawu. Kokoni ikakhala yaying’ono, wolankhulirayo amakhala waung’ono komanso mawu amvekere.
Matsenga a Nyimbo
Oyankhula opanda zingwe a Bluetooth ali ngati mankhwala amatsenga a mawaya, maginito, ndi ma cones onse amagwira ntchito limodzi kuti apange phokoso lokoma la nyimbo. Koma kwenikweni chikuchitika ndi chiyani?
Tiyeni tiwononge:
- Waya wachitsulo wosunthika, womwe umadziwika kuti koyilo ya mawu, ulodzedwa ndi maginito amphamvu mkati mwa choyankhulira.
- Kuzungulira kwa mawu ndi maginito amalodza kuti azitha kunjenjemera komwe kumakhudza kamvekedwe kapena kamvekedwe ka mawu.
- Mafunde amawu awa amakulitsidwa kudzera mu koni / kuzungulira ndikulowa m'makutu anu.
- Kukula kwa cone / kuzungulira kumakhudza kuchuluka kwa wokamba nkhani. Kukula kwa koni, komwe wolankhulira kumakulira komanso kukweza mawu. Kokoni ikakhala yaying’ono, wolankhulirayo amakhala waung’ono komanso mawu amvekere.
Chifukwa chake ngati mukuyang'ana zamatsenga pang'ono m'moyo wanu, musayang'anenso choyankhulira cha Bluetooth chopanda zingwe!
Mbiri ya Bluetooth: Ndani Anayambitsa Izo?
Bluetooth ndiukadaulo womwe timagwiritsa ntchito tsiku lililonse, koma mukudziwa yemwe adayambitsa? Tiyeni tiwone mbiri yaukadaulo wosinthawu komanso munthu yemwe adayambitsa izi.
Kupangidwa kwa Bluetooth
Mu 1989, kampani yolumikizana ndi mafoni yaku Sweden yotchedwa Ericsson Mobile idaganiza zopanga luso. Anapatsa akatswiri awo kuti apange ukadaulo wapawayilesi waufupi womwe umatha kutumiza ma siginecha kuchokera pamakompyuta awo kupita ku mahedifoni awo opanda zingwe. Pambuyo pogwira ntchito molimbika, mainjiniya adachita bwino ndipo zotsatira zake zidakhala ukadaulo wa Bluetooth womwe timagwiritsa ntchito masiku ano.
Kodi Dzinali Linachokera Kuti?
Mutha kukhala mukuganiza kuti dzina loti "Bluetooth" linachokera kuti. Chabwino, ndi gawo la nthano ya ku Scandinavia. Malinga ndi nkhaniyi, Mfumu ya ku Denmark yotchedwa Harald “Bluetooth” Gormsson anagwirizanitsa gulu la mafuko a ku Denmark kukhala fuko limodzi lapamwamba. Mofanana ndi luso lamakono, Harald "Bluetooth" Gormsson adatha "kugwirizanitsa" mafuko onsewa pamodzi.
Kodi Bluetooth Imagwira Ntchito Motani?
Ngati mukufuna kumvetsetsa momwe choyankhulira cha Bluetooth chimatulutsa mawu, muyenera kudziwa bwino maginito. Nayi chidule chachangu:
- Bluetooth imatumiza chizindikiro chomwe chimatengedwa ndi maginito mu sipika.
- Kenako maginito amanjenjemera, n’kupanga mafunde amphamvu.
- Mafunde a phokoso amenewa amayenda mumlengalenga ndipo amamva ndi makutu anu.
Ndiye muli nazo, sayansi kumbuyo kwa olankhula Bluetooth! Ndani ankadziwa kuti zinali zophweka?
Kodi Buzz About Near Field Audio speaker ndi chiyani?
Kusamala Ndalama
Ndiye mudamvapo za Near Field Audio (NFA) okamba, koma zonsezi ndi chiyani? Chabwino, oyankhula opanda zingwewa amagwira ntchito motchedwa electromagnetic induction. Kwenikweni, iwo ali ndi transducer, yomwe ndi njira yapamwamba yonenera chipangizo chomwe chimasintha mphamvu kukhala chizindikiro chamagetsi. Ndiye, mukayika foni yanu pamwamba pa chizindikiro ichi, imakulitsa phokoso la chipangizo chanu.
Bluetooth motsutsana ndi Near Field Audio
Tiyeni tifanizire ndikusiyanitsa olankhula a Bluetooth ndi NFA:
- Onsewa ndi opanda zingwe, koma okamba NFA amagwiritsa ntchito mabatire wamba kuti apange mphamvu zawo m'malo mwa ma wayilesi.
- Ndi ma speaker a Bluetooth, muyenera kulunzanitsa foni yanu ndi sipika kuti mumve phokoso. Ndi okamba NFA, zomwe muyenera kuchita ndikuyika foni yanu pamwamba ndipo mwakonzeka kupita!
Kupita Kokasangalala Zoona
Kodi mumadziwa kuti okamba onse amagwira ntchito chifukwa cha sayansi? Mu 1831, wasayansi wina wa ku England, dzina lake Michael Faraday, anapeza Lamulo la Faraday la Kubadwanso Kwatsopano. Lamuloli likunena kuti maginito akamalumikizana ndi dera lamagetsi, amapanga mphamvu ya electromotive, yomwe pakali pano, ndi mafunde omveka. Zabwino kwambiri, sichoncho?
Kodi Muyenera Kuganizira Chiyani Mukamagula Ma speaker opanda zingwe?
ngakhale
Zikafika kwa okamba opanda zingwe, ndikofunikira kuonetsetsa kuti mwapeza imodzi yomwe ikugwirizana ndi chipangizo chanu. Chongani bokosi kapena zoyikapo kuti muwonetsetse kuti zigwira ntchito ndi foni kapena laputopu yanu.
bajeti
Musanayambe kugula zinthu, m’pofunika kudziwa kuti mukufuna kuwononga ndalama zingati. Tsatirani mitundu yodalirika ngati Sony, Bose, kapena LG kuti muwonetsetse kuti mumapeza ndalama zambiri.
Quality Sound
Zikafika kwa olankhula opanda zingwe, khalidwe la mawu ndilofunika kwambiri. Onetsetsani kuti mwapeza imodzi yomwe ili ndi mawu omveka bwino, omveka bwino omwe angadzaze chipindacho. Ingokumbukirani, ngati mukukhala m'nyumba, simukusowa wokamba nkhani kuti makoma agwedezeke.
Kusintha
Ubwino wa okamba opanda zingwe ndikuti mutha kupita nawo kulikonse komwe mungapite. Yang'anani zoyankhulira zopepuka, zolimba zomwe sizimva madzi kuti mutha kupita nazo kugombe, kupaki, ngakhale kodyera kuseri kwa nyumba.
kalembedwe
Mukufuna kuti choyankhulira chanu chopanda zingwe chigwirizane ndi zokongoletsa kwanu. Sankhani chimodzi chomwe sichidzatenga malo ochulukirapo komanso chomwe sichingakhale malo apakati a chipindacho.
Mitundu ya Oyankhula
Zikafika kwa olankhula opanda zingwe, pali mitundu iwiri ikuluikulu: Bluetooth ndi Near Field Audio. Oyankhula a Bluetooth ndi abwino kwa malo akuluakulu, pamene oyankhula a NFA ali abwino kumadera ang'onoang'ono.
Customizable speaker
Ngati mukuyang'ana choyankhulira opanda zingwe chomwe chikuwoneka bwino, pali zosankha zambiri zomwe mungasinthire makonda. Yesani choyankhulira patebulo yaying'ono, choyankhulira cha hockey puck, kapena ngakhale chowunikira!
Ubwino ndi kuipa kwa Wireless speaker
Ubwino
Oyankhula opanda zingwe ndi njira yopitira ngati mukufuna kukhazikitsa kopanda zovuta:
- Sipadzakhalanso kupunthwa mawaya kapena kuyesa kuwabisa!
- Zabwino kwa madera akunja monga ma desiki, ma patio, ndi maiwe.
- Palibe chifukwa chodera nkhawa za zingwe zamagetsi - okamba oyendetsedwa ndi batire alipo.
Zovuta
Tsoka ilo, olankhula opanda zingwe samabwera popanda zovuta zawo:
- Kusokoneza mafunde ena a wailesi kungayambitse ma siginecha osamveka.
- Zizindikiro zotsika zimatha kupangitsa kuti musamamvetsere bwino.
- Mavuto a bandwidth angayambitse nyimbo zochepa kapena zolemera.
kusiyana
Wireless Audio Vs Wired
Nyimbo zopanda zingwe ndi njira yamtsogolo, yopereka mwayi komanso ufulu woyenda. Ndi mahedifoni opanda zingwe, simuyenera kuda nkhawa ndi zingwe zomata kapena kukhala pafupi ndi chipangizo chanu. Mutha kuyendayenda momasuka ndikumvera nyimbo zomwe mumakonda, ma podcasts, kapena ma audiobook. Kumbali inayi, mahedifoni okhala ndi ma waya amaperekabe mawu apamwamba kwambiri, popeza chizindikirocho sichimapanikizidwa monga momwe zilili ndi ma audio opanda zingwe. Kuphatikiza apo, mahedifoni okhala ndi ma waya nthawi zambiri amakhala otsika mtengo kuposa anzawo opanda zingwe. Chifukwa chake, ngati mukuyang'ana zomveka bwino osathyola banki, mahedifoni okhala ndi ma waya atha kukhala njira yopitira. Komabe, ngati mukufuna kumvetsera kosavuta, ma audio opanda zingwe ndi njira yopitira.
Kutsiliza
Tsopano popeza mukudziwa chomwe ma audio opanda zingwe ndi, mutha kugwiritsa ntchito kumvera nyimbo, ma podcasts, ndi ma audiobook kulikonse komwe mungafune. Ndi yabwino kuchita masewera olimbitsa thupi, kuyenda komanso kusangalala.
Mutha kugwiritsa ntchito kumvera nyimbo, ma podcasts, ndi ma audiobook kulikonse komwe mungafune. Ndi yabwino kuchita masewera olimbitsa thupi, kuyenda komanso kusangalala.
Ndine Joost Nusselder, woyambitsa Neaera komanso wotsatsa malonda, abambo, ndipo ndimakonda kuyesa zida zatsopano ndi gitala pamtima pa zomwe ndimakonda, ndipo pamodzi ndi gulu langa, ndakhala ndikupanga zolemba zakuya zamabulogu kuyambira 2020. kuthandiza owerenga okhulupirika ndi maupangiri ojambulira ndi gitala.
