No ke aha mākou e pono ai i nā crossovers i nā ʻāpana acoustics?

Ke kau ʻana i kahi ʻōnaehana stereo hou i loko o kahi kaʻa, pono ka mea nona ke koho i ka crossover kūpono. ʻAʻole paʻakikī ke hana i kēia inā ʻike mua ʻoe iā ʻoe iho i ke ʻano o ia mea, i ka mea i manaʻo ʻia, a ma ke ʻano o ka ʻōnaehana leo e hana ai.

ʻO ke kumu

⭐ ⭐ ⭐ ⭐ ⭐ He mea hana kūikawā ʻo Crossover i ka hoʻolālā ʻana o ka ʻōnaehana leo, i hoʻolālā ʻia e hoʻomākaukau i ka pono pilikino ponoʻī no kēlā me kēia o nā mea haʻiʻōlelo i kau ʻia. Hoʻolālā ʻia nā mea hope e hana i loko o kekahi mau laina alapine. ʻO ka puka ʻana o ka alapine o ka hōʻailona i hāʻawi ʻia i ka mea haʻiʻōlelo ma waho o ka laulā hiki ke alakaʻi, ma ka liʻiliʻi loa, i ka hoʻokaʻawale ʻana i ke kani i hana hou ʻia, no ka laʻana:

1. inā haʻahaʻa loa ka hoʻohana ʻia ʻana o ka alapine, e hoʻoneʻe ʻia ke kiʻi kani;
2. Inā hoʻohana ʻia kahi alapine kiʻekiʻe, ʻaʻole e kū wale ka mea nona ka ʻōnaehana stereo, akā ʻaʻole hiki ke kū i kēia ʻano hana.

Ma lalo o nā kūlana maʻamau, ʻo ka hana a kahi tweeter ke hana hou i ke kani kiʻekiʻe, haʻahaʻa haʻahaʻa, kēlā me kēia, haʻahaʻa. Hāʻawi ʻia ka hui waena i ka mid-woofer - ka mea haʻiʻōlelo ke kuleana no ke kani ʻana o nā alapine waena.

Ma muli o ka mea i hōʻike mua ʻia, i mea e hoʻopuka hou ai i nā leo kaʻa me ke ʻano kiʻekiʻe, pono e koho i nā kaha alapine kūpono a hoʻopili iā lākou i nā ʻōlelo kikoʻī. No ka hoʻoponopono i kēia pilikia, hoʻohana ʻia kahi crossover.

Mea hoʻopā kea

Ma ke ʻano o ka hoʻonohonoho ʻana, loaʻa i ka crossover kekahi mau kānana alapine e hana penei: no ka laʻana, inā hoʻonohonoho ʻia ke alapine crossover i 1000 Hz, e koho kekahi o nā kānana i nā alapine ma lalo o kēia hōʻailona. A ʻo ka lua, ʻo ia ka hana ʻana i ke kāʻei alapine i ʻoi aku ma mua o ka māka i ʻōlelo ʻia. Loaʻa i nā kānana ko lākou mau inoa ponoʻī: low-pass - no ka hana ʻana i nā alapine ma lalo o hoʻokahi tausani hertz; high-pass - no ka hana ʻana i nā alapine ma luna o hoʻokahi tausani hertz.

No laila, ʻo ke kumu i hōʻike ʻia ma luna nei kahi hana crossover ʻelua. Aia kekahi mau huahana ʻekolu ala ma ka mākeke. ʻO ka ʻokoʻa nui, e like me ka inoa i hōʻike ʻia, ʻo ia ke kolu o kāna kānana e hana ana i ke alapine waena, mai ʻeono haneli a ʻelima tausani hertz.

ʻO ka ʻoiaʻiʻo, ʻo ka hoʻonui ʻana i nā kānana kānana leo kani, a laila hānai iā lākou i nā mea haʻi'ōlelo kūpono, alakaʻi i ka hoʻopuka maikaʻi ʻana o ke kani kūlohelohe i loko o ke kaʻa.

Nā hiʻohiʻona ʻona

Loaʻa ka hapa nui o nā crossovers hou i nā inductors a me nā capacitors. Ma muli o ka nui a me ka maikaʻi o ka hana ʻana i kēia mau mea reactive, ua hoʻoholo ʻia ke kumukūʻai o ka huahana i hoʻopau ʻia. ʻO ke kumu, ʻo ia ka mea maʻalahi loa. Hana lākou i nā alapine like ʻole o ka hōʻailona leo me ka pilikia ʻole.

Hiki i nā Capacitors ke hoʻokaʻawale a hana i nā alapine kiʻekiʻe, ʻoiai pono nā coils e kāohi i nā alapine haʻahaʻa. Ke hoʻohana pono nei i kēia mau waiwai, ma muli o ka hopena, hiki iā ʻoe ke loaʻa i ka kānana alapine maʻalahi. ʻAʻohe kumu o ka ʻimi ʻana i nā kānāwai paʻakikī o ka physics a me ka haʻi ʻana i nā ʻōlelo hoʻohālike i laʻana. ʻO ka poʻe makemake e kamaʻāina i nā kumu kumu i nā kikoʻī hou aku hiki ke loaʻa ka ʻike ma nā puke aʻo a i ʻole ma ka Pūnaewele. Ua lawa ia no nā poʻe loea e hoʻomaʻamaʻa i ka hoʻomanaʻo ʻana i ke kumu o ka hana ʻana o nā ʻano pūnaewele LC-CL.

ʻO ka helu o nā mea reactive pili i ka hiki ke crossover. Hōʻike ka helu 1 i hoʻokahi mea, 2 - kēlā me kēia, ʻelua. Ma muli o ka helu a me ka hoʻolālā pili o nā mea, hana ka ʻōnaehana i ka kānana ʻana i nā alapine kūpono ʻole no kahi kahawai ma nā ʻano like ʻole.

Maikaʻi ka manaʻo ʻoi aku ka nui o nā mea reactive i hoʻopili ʻia e ʻoi aku ka maikaʻi o ke kaʻina kānana. Loaʻa i ka ʻōnaehana kānana alapine makemake ʻole no kahi alaloa kona ʻano ponoʻī i kapa ʻia ʻo roll-off slope.

Loaʻa i nā kānana ka waiwai o ka ʻoki ʻana i nā alapine makemake ʻole me ka mālie, ʻaʻole koke.

Ua kapa ʻia ʻo sensitivity. Ma muli o kēia hōʻailona, ​​ua māhele ʻia nā huahana i ʻehā mau ʻāpana:

• nā kumu hoʻohālike mua;
• nā hiʻohiʻona lua;
• nā kumu hoʻohālike kolu;
• nā kumu hoʻohālike ʻehā.

Nā ʻokoʻa ma waena o nā crossovers ikaika a me nā passive

E hoʻomaka kākou i ka hoʻohālikelike me kahi crossover passive. Ua ʻike ʻia mai ka hoʻomaʻamaʻa ʻana ʻo ka passive crossover ka mea maʻamau a maʻamau i ka mākeke. Ma muli o ka inoa, hiki iā ʻoe ke hoʻomaopopo ʻaʻole pono nā passive i ka mana hou. No laila, ʻoi aku ka maʻalahi a me ka wikiwiki no ka mea nona ka kaʻa e hoʻokomo i nā lako i loko o kāna kaʻa. Akā, ʻo ka mea pōʻino, ʻaʻole i hōʻoia mau ka wikiwiki i ka maikaʻi.

Ma muli o ke kumu passive o ke kaapuni, pono ka ʻōnaehana e lawe i kekahi o ka ikehu mai ka kānana e hōʻoia i kāna hana. I kēia hihia, hoʻololi nā mea reactive i ka hoʻololi pae. ʻOiaʻiʻo, ʻaʻole kēia ka drawback koʻikoʻi, akā ʻaʻole hiki i ka mea nona ke hoʻoponopono i nā alapine.

Hiki i nā crossovers ikaika ke hoʻopau i kēia drawback. ʻO ka ʻoiaʻiʻo, ʻoiai ʻoi aku ka paʻakikī ma mua o nā passive, ua kānana maikaʻi ʻia ke kahawai leo i loko o lākou. Ma muli o ka loaʻa ʻana o nā coils a me nā capacitors, akā me nā mea semiconductor ʻē aʻe, ua hoʻokō nā mea hoʻomohala e hōʻemi nui i ka nui o ka hāmeʻa.

ʻAʻole ʻike ʻia lākou ma ke ʻano he mea kaʻawale, akā i loko o kēlā me kēia kaʻa amplifier, ma ke ʻano he ʻāpana, aia kahi kānana hana. Ma muli o ke kumu passive o ke kaapuni, pono ka ʻōnaehana e lawe i kekahi o ka ikehu mai ka kānana e hōʻoia i kāna hana. I kēia hihia, hoʻololi nā mea reactive i ka hoʻololi pae. ʻOiaʻiʻo, ʻaʻole kēia ka drawback koʻikoʻi, akā ʻaʻole hiki i ka mea nona ke hoʻoponopono i nā alapine.

Hiki i nā crossovers ikaika ke hoʻopau i kēia drawback. ʻO ka ʻoiaʻiʻo, ʻoiai ʻoi aku ka paʻakikī ma mua o nā passive, ua kānana maikaʻi ʻia ke kahawai leo i loko o lākou. Ma muli o ka loaʻa ʻana o nā coils a me nā capacitors, akā me nā mea semiconductor ʻē aʻe, ua hoʻokō nā mea hoʻomohala e hōʻemi nui i ka nui o ka hāmeʻa.

ʻAʻole ʻike ʻia lākou ma ke ʻano he mea kaʻawale, akā i loko o kēlā me kēia kaʻa amplifier, ma ke ʻano he ʻāpana, aia kahi kānana hana.

Manaʻo mākou e hoʻomaʻamaʻa ʻoe iā ʻoe iho me ke kumuhana e pili pū ana "Pehea e hoʻopili ai a hoʻokomo pono iā Twitter".

Nā hiʻohiʻona hoʻopilikino

I mea e loaʻa ai ka leo kaʻa kiʻekiʻe ma muli o ka hopena, pono ʻoe e koho i ke alapine cutoff kūpono. I ka hoʻohana ʻana i kahi crossover ala ʻekolu, pono e kuhikuhi ʻia nā alapine ʻoki ʻelua. E hōʻailona ka helu mua i ka laina ma waena o ke alapine haʻahaʻa a me ke alapine, ʻo ka lua - ka palena ma waena o ka waena a me ke kiʻekiʻe. Ma mua o ka hoʻohui ʻana i ka crossover, pono e hoʻomanaʻo mau ka mea nona ke kaʻa he pono ke koho pololei i nā ʻano alapine o ka mea haʻi'ōlelo.

ʻAʻole pono e hānai ʻia lākou i nā alapine ʻaʻole hiki iā lākou ke hana maʻamau. A i ʻole, ʻaʻole ia e alakaʻi wale i ka hōʻemi ʻana i ka maikaʻi o ke kani, akā i ka emi ʻana o ke ola lawelawe.

ʻO ke kiʻi uwila passive crossover

Video: He aha ke ʻano o ka hoʻololi leo?

hopena

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