ʻO ka leo uila ʻole ka hiki ke hoʻolohe i ke mele me ka ʻole o nā uea ma waena o kāu mau mea haʻiʻōlelo a me kāu ʻōnaehana stereo. He ʻenehana ia e hoʻohana ana i nā hawewe lekiō e hoʻouna i ka hōʻailona leo mai ke kumu i ka poe haiolelo. Ua ʻike ʻia ʻo ia ʻo ka wireless fidelity a i ʻole nā mea ʻōlelo Wi-Fi.
Ma kēia ʻatikala, e wehewehe wau i ka hana ʻana a me ke kumu e ulu nui ai ia.
Nā ʻōlelo leo ʻole: Pehea lākou e hana ai?
ʻO ke ʻano Infrared
ʻAʻole pili pono nā mea leo uila i kahi ʻōnaehana stereo a i ʻole nā kumu ʻē aʻe. Akā, pono ka ʻōnaehana e hoʻouna i kahi hōʻailona e hiki i nā mea haʻiʻōlelo ke kiʻi a lilo i uila no ka hoʻoikaika ʻana i ka puʻupuʻu leo i loko o ka leo. A aia hoʻokahi ala e hana ai: nā hōʻailona infrared. Ua like ia me ka hana ʻana o nā mana mamao. Hoʻouna ka ʻōnaehana stereo i ke kukui infrared, ʻaʻole ʻike ʻia e ka maka ʻōlohelohe. Lawe kēia kukuna i ka ʻike ma ke ʻano o nā pulses, a ʻo nā mea leo uila i loaʻa nā mea ʻike e hiki ke ʻike i kēia mau hoʻouna.
Ke ʻike ka mea ʻike i ka hōʻailona, hoʻouna ʻo ia i nā hōʻailona uila i kahi amplifier. Hoʻonui kēia mea hoʻonui i ka ikaika o ka puka ʻana o ka sensor, pono ia e hoʻokele i ka leo leo i loko o ka leo. Ma hope o kēlā, ʻo ke ʻano ʻokoʻa ke kumu e hoʻololi wikiwiki ai ka electromagnet o ka leo coil i ka polarity. ʻO kēia ke kumu e haʻalulu ai ka diaphragm o ka mea haʻiʻōlelo.
Nā Kāiki
ʻO ka hoʻohana ʻana i nā hōʻailona infrared no nā mea leo uila he mau hemahema. No ka mea, pono ke kukui infrared i kahi ala maopopo mai ka ʻōnaehana stereo a i ka leo. ʻO nā mea e ālai ana i ke ala e pale aku i ka hōʻailona mai ka hiki ʻana i ka mea haʻiʻōlelo a ʻaʻole ia e kani. Eia kekahi, maʻa mau nā hōʻailona infrared. ʻO nā mea e like me nā mana mamao, nā kukui, a me nā kānaka hoʻi e hāʻawi i ka radiation infrared, hiki ke hoʻopilikia a paʻakikī i ka mea haʻiʻōlelo ke ʻike i kahi hōʻailona maopopo.
Nā hōʻailona Radio
Aia kekahi ala ʻē aʻe e hoʻouna ai i nā hōʻailona ma ke kelepona ʻole: radio. ʻAʻole pono nā hōʻailona lekiō i kahi laina o ka ʻike, no laila ʻaʻole pono ʻoe e hopohopo e pili ana i kekahi mea e ālai ana i ke ala. Eia kekahi, ʻaʻole hiki ke hoʻopilikia ʻia nā hōʻailona lekiō, no laila hiki iā ʻoe ke leʻaleʻa i kāu mele me ka ʻole o ka choppiness a i ʻole ke kūlike.
He alakaʻi no ka mea hoʻomaka i nā nalu lawe a me nā hōʻailona hoʻololi
He aha nā hawewe lawe?
He mau hawewe electromagnetic ka nalu lawe i hoʻololi ʻia me ka hōʻailona lawe ʻike no ka hoʻouna ʻole ʻana. ʻO ia ke ʻano o ka lawe ʻana i ka ikehu mai kekahi wahi a i kekahi, e like me ka wela a me ka mālamalama mai ka Lā a i ka Honua, a i ʻole ka leo leo mai kahi transmitter a i kahi mea hoʻokipa headphone. ʻOkoʻa nā nalu lawe lawe mai nā nalu kani, ʻo ia nā nalu mechanical, no ka mea hiki iā lākou ke hele i loko o kahi hakahaka a ʻaʻole pili pono i nā molekala o kahi ʻano.
He aha nā hōʻailona modulating?
Hoʻohana ʻia nā hōʻailona modulating e hoʻololi i ka hōʻailona lawe, a ʻo ia nā leo leo i manaʻo ʻia no nā mea hoʻokele headphone. Nui nā ala e hiki ai i ka hōʻailona modulating ke hoʻololi i ka nalu lawe, e like me alapine (frequency) hoʻololi (FM). Hana ʻo FM ma ka hoʻololi ʻana i ka hōʻailona modulating i ka alapine o ka nalu lawe.
Hoʻouna ʻana i nā leo Analog Wireless
Hoʻohana pinepine ʻia nā headphone kelepona ma kahi o 2.4 GHz (ke alapine o ka lekiō), e hāʻawi ana i kahi laulā uea maikaʻi a hiki i 91 m (300 ft). No ka mālama ʻana i ka ʻokoʻa o ke alapine haʻahaʻa haʻahaʻa o ka haʻahaʻa haʻahaʻa, hoʻonui ʻia ka hōʻailona leo i ka wā e hoʻohaʻahaʻa ai ka mea lawe pepeiao. Hoʻouna ʻia ka leo Stereo e ka multiplexing a me ka demultiplexing ma mua a ma hope o ke kaʻina hoʻololi pinepine.
Ka Hoʻouna Leo Kikohoʻe ʻole
Nā leo uila ua hana ʻia me nā kiʻi paʻi koke o ka amplitude o ka hōʻailona leo a hōʻike ʻia ma ke kikohoʻe. Hiki ke wehewehe ʻia ka maikaʻi o ka leo kikohoʻe e kona laʻana helu a me ka bit-hohonu. ʻO ka helu laʻana e pili ana i ka nui o nā amplitude leo pākahi i hoʻohālikelike ʻia i kēlā me kēia kekona, a ʻo ka bit-hohonu e pili ana i ka nui o nā bits i hoʻohana ʻia e hōʻike i ka amplitude o kekahi laʻana.
Panina
No laila, i ka hōʻuluʻulu ʻana, ʻo nā hawewe uila he mau hawewe electromagnetic e lawe ana i ka ikehu mai kahi wahi a i kekahi, a hoʻohana ʻia nā hōʻailona modulating e hoʻololi i ka hōʻailona lawe, a laila hoʻouna ʻia i ka mea hoʻokipa headphone. Hana ʻia ka hoʻoili leo analog uila ma o ka hoʻololi ʻana i ke alapine, a hana ʻia ka hoʻoili leo kikohoʻe uila ma o nā hōʻailona leo kikohoʻe.
Hoʻomaopopo i ka Honua o nā hōʻailona hoʻolaha
Nā Kuleana o ka Lekiō
ʻO nā hawewe lekiō kekahi ʻāpana o ka spectrum electromagnetic, me ka māmā a me ka infrared. He 390 a hiki i ka 750 nanometer ke kukui ʻike ʻia, ʻoiai he lōʻihi ka lōʻihi o ke kukui infrared mai 0.74 micrometers a 300 micrometers. ʻO nā nalu lekiō, ʻo ia ka mea nui loa o ka puʻu, me ka lōʻihi o ka nalu o 1 millimeter a 100 kilomika!
Loaʻa i nā hawewe lekiō kekahi mau mea maikaʻi ma mua o nā ʻano pāhawewe electromagnetic ʻē aʻe, akā pono lākou i kekahi mau ʻāpana e kiʻi mai kahi ʻōnaehana stereo i kahi leo. ʻO kahi transmitter pili i ka ʻōnaehana stereo e hoʻohuli i nā hōʻailona uila i nā hawewe lekiō, a laila hoʻolaha ʻia mai kahi antenna. Ma ka ʻaoʻao ʻē aʻe, ʻike ka antenna a me ka mea hoʻokipa ma ka lekiō uila i ka hōʻailona lekiō, e hoʻohuli ana iā ia i hōʻailona uila. A laila hoʻonui ka amplifier i ka mana o ka hōʻailona e hoʻokele i ka leo.
Nā Lekiō a me ke Keʻakeʻa
Nā alapine radio He mea koʻikoʻi ia no ka mea hiki ke hoʻopilikia kekahi i kekahi. He pilikia nui paha kēia, no laila ua hoʻokumu nā ʻāina he nui i nā lula e kaupalena ʻia nā ʻano lekiō lekiō i ʻae ʻia e hana. Ma ʻAmelika Hui Pū ʻIa, ʻo nā pūʻulu alapine i hāʻawi ʻia i nā hāmeʻa e like me nā mea ʻōlelo uila ʻole:
- 902 a 908 megahertz
- 2.4 a 2.483 gigahertz
- 5.725 a 5.875 gigahertz
ʻAʻole pono kēia mau alapine e hoʻopilikia i ka lekiō, televise, a me nā hōʻailona kamaʻilio.
Pūnaewele Bluetooth
ʻO Bluetooth kahi protocol e hiki ai i nā polokalamu ke hoʻohui i kekahi i kekahi. 'O ia ho'i, hiki i nā mea leo uila ke loa'a nā mana ma mua o ka leo a me ka mana. Me ke kamaʻilio ʻelua ʻaoʻao, hiki iā ʻoe ke hoʻomalu i ke mele e pāʻani nei a i ʻole ka lekiō e hoʻolohe ai kāu ʻōnaehana me ka ʻole e ala a hoʻololi iā ia ma ka ʻōnaehana nui. Pehea ka maikaʻi o kēlā?
He aha ka Magic Behind Wireless Bluetooth Speakers?
Ka ʻepekema o ke kani
ʻO nā ʻōlelo leo ʻole Bluetooth e like me ka lāʻau hoʻokalakupua o nā uea, nā magnet, a me nā cones e hana pū ana e hana i ka leo momona o ke mele. Akā, he aha ka mea e hana nei?
E wāwahi kākou:
- ʻO kahi uwea metala maʻalahi, ʻike ʻia ʻo ka leo wili, ua huki ʻia i kahi magnet ikaika i loko o ka leo.
- Hana pū ka wili leo a me ka magnet e hana i nā haʻalulu e pili ana i ke alapine, a i ʻole ka pitch, o ke kani.
- Hoʻonui ʻia kēia mau hawewe kani ma o ka cone/hoʻopuni a i loko o kou mau puka pepeiao.
- Pili ka nui o ka cone/hoʻopuni i ka leo o ka leo. ʻOi aku ka nui o ka cone, ʻoi aku ka nui o ka ʻōlelo a me ka leo nui. ʻO ka liʻiliʻi o ka cone, ʻoi aku ka liʻiliʻi o ka mea haʻiʻōlelo a ʻoi aku ka mālie o ka leo.
Ka Puolo Mele
ʻO nā ʻōlelo leo ʻole Bluetooth e like me ka lāʻau hoʻokalakupua o nā uea, nā magnet, a me nā cones e hana pū ana e hana i ka leo momona o ke mele. Akā, he aha ka mea e hana nei?
E wāwahi kākou:
- ʻO kahi uea metala maʻalahi, ʻike ʻia ʻo ka leo wili, e hoʻomāʻewaʻewa ʻia e kahi magnet ikaika i loko o ka leo.
- ʻO ka puʻupuʻu leo a me ka mea hoʻokalakupua e hana i nā haʻalulu e pili ana i ke alapine, a i ʻole ka pitch, o ke kani.
- Hoʻonui ʻia kēia mau hawewe kani ma o ka cone/hoʻopuni a i loko o kou mau puka pepeiao.
- Pili ka nui o ka cone/hoʻopuni i ka leo o ka leo. ʻOi aku ka nui o ka cone, ʻoi aku ka nui o ka ʻōlelo a me ka leo nui. ʻO ka liʻiliʻi o ka cone, ʻoi aku ka liʻiliʻi o ka mea haʻiʻōlelo a ʻoi aku ka mālie o ka leo.
No laila, inā ʻoe e ʻimi nei i kahi kilokilo liʻiliʻi i kou ola, mai nānā ʻoe ma mua o kahi leo uila Bluetooth!
ʻO ka mōʻaukala o Bluetooth: ʻO wai ka mea i hana?
ʻO Bluetooth kahi ʻenehana a mākou e hoʻohana ai i kēlā me kēia lā, akā ʻike anei ʻoe i ka mea nāna ia i hana? E nānā kākou i ka mōʻaukala o kēia ʻenehana kipi a me ke kanaka ma hope.
ʻO ke ʻano o ka Bluetooth
I ka makahiki 1989, ua hoʻoholo kekahi hui kelepona ʻo Suedena i kapa ʻia ʻo Ericsson Mobile e hana i ka hana noʻeau. Ua hana lākou i kā lākou poʻe ʻenekinia me ka hana ʻana i kahi ʻenehana lekiō pili pōkole e hiki ke hoʻouna i nā hōʻailona mai kā lākou kamepiula pilikino i kā lākou mau poʻo uila. Ma hope o ka hana nui, ua lanakila nā ʻenekinia a ʻo ka hopena ʻo ka ʻenehana Bluetooth a mākou e hoʻohana nei i kēia lā.
No hea mai ka inoa?
E noʻonoʻo paha ʻoe no hea mai ka inoa "Bluetooth". ʻAe, he ʻāpana maoli ia o ka moʻolelo Scandinavian. Wahi a ka moʻolelo, ua hui kahi mōʻī Denemaka i kapa ʻia ʻo Harald "Bluetooth" Gormsson i kahi hui o nā ʻohana Denemaka i hoʻokahi ʻohana nui. E like me ka ʻenehana, hiki iā Harald "Bluetooth" Gormsson ke "hoʻohui" i kēia mau ʻohana āpau.
Pehea e hana ai ke Bluetooth?
Inā makemake ʻoe e hoʻomaopopo i ka hoʻopuka ʻana o ka leo Bluetooth i ke kani, pono ʻoe e kamaʻāina me nā magnet. Eia kahi hōʻuluʻulu wikiwiki:
- Hoʻouna ʻo Bluetooth i kahi hōʻailona i ʻohi ʻia e kahi magnet ma ka leo.
- A laila haʻalulu ka magnet, e hana ana i nā hawewe kani.
- Hele kēia mau hawewe kani ma ka lewa a lohe ʻia e kou mau pepeiao.
No laila aia ʻoe, ʻo ka ʻepekema ma hope o nā mea ʻōlelo Bluetooth! ʻO wai ka mea i ʻike he maʻalahi loa?
He aha ka Buzz no Near Field Audio Speakers?
ke kumu o ke
No laila ua lohe ʻoe i nā mea ʻōlelo Near Field Audio (NFA), akā he aha ia mau mea? ʻAe, hana kēia mau mea ʻōlelo uila ma o ke kaʻina i kapa ʻia ʻo electromagnetic induction. ʻO ke kumu, loaʻa iā lākou kahi transducer, kahi ala maikaʻi e ʻōlelo ai i kahi mea hana e hoʻohuli ai i ka ikehu i hōʻailona uila. A laila, ke kau ʻoe i kāu kelepona ma luna o kēia hōʻailona, hoʻonui ia i ke kani mai kāu kelepona.
Bluetooth vs. Near Field Audio
E hoʻohālikelike a hoʻohālikelike i nā mea ʻōlelo Bluetooth a me NFA:
- Hoʻohana ʻole nā mea ʻōlelo ʻelua, akā hoʻohana nā mea ʻōlelo NFA i nā pihi maʻamau e hana i ko lākou mana ma mua o nā hōʻailona lekiō.
- Me nā mea leo Bluetooth, pono ʻoe e hoʻopaʻa i kāu kelepona i ka leo e lohe ai i ke kani. Me nā mea haʻiʻōlelo NFA, ʻo ka mea wale nō āu e hana ai ʻo ke kau ʻana i kāu kelepona ma luna a maikaʻi ʻoe e hele!
Fun mea
Ua ʻike paha ʻoe i ka hana ʻana o nā mea haʻiʻōlelo a pau i ka physics? I ka makahiki 1831, ua ʻike kekahi kanaka ʻepekema Pelekane ʻo Michael Faraday i ke Kānāwai Induction o Faraday. Ua ʻōlelo kēia kānāwai i ka wā e launa pū ai ka magnet me kahi kaapuni uila, e hoʻopuka ana i ka ikaika electromotive, ʻo ia hoʻi, he hawewe kani. Maikaʻi, ʻeā?
He aha kāu e noʻonoʻo ai i ke kūʻai ʻana i nā mea haʻiʻōlelo uila?
hoʻokaulike
I ka wā e pili ana i nā mea leo uila, he mea nui e hōʻoia e loaʻa iā ʻoe kahi mea kūpono me kāu kelepona. E hōʻoia i ka pahu a i ʻole ka ʻeke e ʻike pono e hana pū me kāu kelepona a i ʻole kāu kamepiula.
Bedroom
Ma mua o kou hoʻomaka ʻana e kūʻai, pono e noʻonoʻo i ka nui āu e makemake ai e hoʻolilo. E hoʻopaʻa i nā hōʻailona hilinaʻi e like me Sony, Bose, a i ʻole LG e hōʻoia e loaʻa iā ʻoe ka hapa nui loa no kāu kālā.
Ka maikaʻi o ke kani
I ka wā e pili ana i nā mea leo uila, ʻo ke ʻano leo ke kī. E hōʻoia e loaʻa iā ʻoe kahi leo maʻemaʻe a paʻakikī e hoʻopiha ai i ka lumi. E hoʻomanaʻo wale, inā noho ʻoe i kahi keʻena, ʻaʻole pono ʻoe i kahi haʻiʻōlelo e haʻalulu ai nā paia.
Ka Manawaena
ʻO ka nani o nā mea ʻōlelo uila ʻole hiki iā ʻoe ke lawe pū me ʻoe i nā wahi āu e hele ai. E ʻimi i kahi haʻiʻōlelo māmā a paʻa i ka wai a hiki iā ʻoe ke lawe iā ia i kahakai, paka, a i ʻole kahi barbecue o hope.
Nails
Makemake ʻoe e kūpono kāu leo uila me kāu mea hoʻonani home. E koho i kahi mea ʻaʻole e hoʻonui i ka nui a ʻaʻole ia ke kikowaena o ka lumi.
Ke ano o na mea haiolelo
I ka wā e pili ana i nā leo uila, ʻelua ʻano nui: Bluetooth a me Near Field Audio. ʻOi aku ka maikaʻi o nā mea ʻōlelo Bluetooth no nā wahi nui, a ʻoi aku ka maikaʻi o nā mea ʻōlelo NFA no nā wahi liʻiliʻi.
Nā mea haʻiʻōlelo hiki ke hana
Inā ʻoe e ʻimi nei i kahi leo uila e kū i waho, nui nā koho maʻamau. E ho'āʻo i kahi haʻi'ōlelo pākaukau liʻiliʻi, kahi haʻi'ōlelo puck hockey, a i ʻole kekahi mea e kukui ana!
ʻO nā mea maikaʻi a me nā pōʻino o nā mea leo uila
'O nā pono
ʻO nā ʻōlelo leo uila ke ala e hele ai inā ʻoe e ʻimi nei i kahi hoʻonohonoho pilikia ʻole:
- ʻAʻole e hele hou i nā uwea a i ʻole e hoʻāʻo e hūnā iā lākou!
- He kūpono no nā wahi o waho e like me nā deck, patios, a me nā loko.
- ʻAʻole pono e hopohopo e pili ana i nā kaula mana - loaʻa nā mea leo uila.
Nā Kāiki
ʻO ka mea pōʻino, ʻaʻole hele mai nā mea ʻōlelo uila me ka ʻole o kā lākou drawbacks:
- Hiki ke hoʻopilikia ʻia nā hawewe lekiō ʻē aʻe.
- Hiki i nā hōʻailona hāʻule ke alakaʻi i kahi ʻike hoʻolohe maikaʻi ʻole.
- Hiki i nā pilikia bandwidth ke alakaʻi i nā mele piha a waiwai paha.
oko ao
Leo ʻole ʻole Vs Uea
ʻO ka leo uila ke ala o ka wā e hiki mai ana, e hāʻawi ana i ka ʻoluʻolu a me ke kūʻokoʻa o ka neʻe. Me nā headphone uea ʻole, ʻaʻole pono ʻoe e hopohopo e pili ana i nā kaula wili a i ʻole e noho kokoke i kāu kelepona. Hiki iā ʻoe ke neʻe a puni me ka hoʻolohe ʻana i kāu mau mele punahele, nā podcast, a i ʻole nā puke leo. Ma ka ʻaoʻao ʻē aʻe, hāʻawi mau nā headphone uea i ka maikaʻi o ke kani ʻoi aku ka maikaʻi, no ka mea ʻaʻole i hoʻopaʻa ʻia ka hōʻailona e like me ka leo uila. Eia kekahi, ʻoi aku ka maʻalahi o nā headphone uea ma mua o kā lākou mau hoa kelepona. No laila, inā ʻoe e ʻimi nei i kahi ʻike kani maikaʻi me ka ʻole o ka haki ʻana i ka panakō, ʻo nā headphone uea paha ke ala e hele ai. Eia naʻe, inā ʻoe e ʻimi nei i kahi ʻike hoʻolohe maʻalahi, ʻo ka leo uila ke ala e hele ai.
Panina
I kēia manawa ua ʻike ʻoe i ke ʻano o ka leo uila, hiki iā ʻoe ke hoʻohana iā ia e hoʻolohe i nā mele, nā podcast, a me nā puke leo i nā wahi āu e makemake ai. He kūpono no ka hoʻoikaika kino, ka hele ʻana, a me ka leʻaleʻa wale.
Hiki iā ʻoe ke hoʻohana iā ia e hoʻolohe i nā mele, nā podcast, a me nā puke leo i nā wahi āu e makemake ai. He kūpono no ka hoʻoikaika kino, ka hele ʻana, a me ka leʻaleʻa wale.
ʻO wau ʻo Joost Nusselder, ka mea nāna i hoʻokumu iā Neaera a me kahi mea kūʻai aku ʻike, makuakāne, a makemake hoʻi e hoʻāʻo i nā mea hana hou me ka guitar ma ka puʻuwai o koʻu makemake, a me kaʻu hui, ua hana wau i nā ʻatikala blog hohonu mai 2020 e kōkua i ka poʻe heluhelu kūpaʻa me nā ʻōlelo aʻoaʻo hoʻopaʻa leo a me nā kīkā.
