Ka ikaika o ke kani - nā pilikia a me nā hoʻonā
1. Aia nā kiko A a me B ma 4 mika a me 9 mika mai ke kumu o ke kani. Inā ʻo I A a me I B ka ikaika ma ke kiko A a me ke kiko B, a laila I A : I B =…
ʻIke ʻia:
ʻO ka mamao o ke kiko A mai kahi kumu kani (r A ) = 4 mika
ʻO ka mamao o ke kiko B mai ke kumu o ke kani (r B ) = 9 mika
Ka ikaika o ke kani ma ke kiko A = I A
Ka ikaika o ke kani ma ke kiko B = I B
Makemake ʻia: I A : I B
Lōlā:
I A r A 2 = I B r B 2
ʻA 4 2 = ʻA B 9 2
ʻA 16 = ʻA B 81
ʻA / B = 81/16
2. ʻO ka ikaika o kahi kumu kani he 10 −9 Wm −2 . I o = 10 −12 Wm −2 . He aha ka pae kani o 10 mau kumu kani?
Lōlā:
ʻIke ʻia:
ʻO I = 10 -9 W/ m2
ʻO I = 10 -12 W/ m2
x = 10
ʻIke ʻia: Pae kani (β)
Lōlā:
3. ʻO ka pae kani o kahi kumu kani he 10 dB. He aha ka ikaika o 1000 mau kumu kani? ʻO ka ikaika haʻahaʻa loa I o = 10 −12 Wm −2.
ʻIke ʻia:
β = 10 dB
ʻO I = 10 -12 W/ m2
x = 1000
Makemake ʻia : Ka ikaika
Lōlā:
Ka ikaika o ke kumu o ke kani:
Ka ikaika o 1000 mau kumu kani:
ʻO wau = (1000)(10 -11 ) = (10 3 )(10 -11 )
ʻO I = 10 -8 W/ m2
4. ʻO ke kiʻekiʻe o ke kani o A he 40 dB, a ʻo ke kiʻekiʻe o ke kani o B he 60 dB. I o = 10 -12 W m -2 . E hoʻoholo i ka 100β A : 10β B.
ʻIke ʻia:
Ka pae kani o A = 40 dB
ʻO ka pae kani o B = 60 dB
ʻO I = 10 -12 W m -2.
Makemake ʻia : 100β A : 10β B
Lōlā:
Ka pae kani o 100 A:
β = 40 + 10 log 100
β = 40 + 10 log 10 2
β = 40 + (2)(10)(log 10)
β = 40 + (2)(10)(1)
β = 40 + 20
β = 60 dB
Ka pae kani o 10 B:
β = 60 + 10 log 10
β = 60 + 10 log 10 1
β = 60 + (1)(10)(log 10)
β = 60 + (1)(10)(1)
β = 60 + 10
β = 70 dB
β A : β B
60: 70
6: 7
5. Inā ʻo ke kiko P ke kumu o ke kani, a laila ʻo ka lakio o ka ikaika o ke kani ma nā kiko S, R, a me Q he …
ʻIke ʻia:
ʻO ka mamao o ke kiko Q mai ke kumu kani (rQ) = 3 mika
ʻO ka mamao o ke kiko R mai ke kumu kani (r R ) = 6 mika
ʻO ka mamao o ke kiko S mai ke kumu kani (r S ) = 5 mika
Ka ikaika o ke kani ma ke kiko Q = I Q
Ka ikaika o ke kani ma ke kiko R = I R
Ka ikaika o ke kani ma ke kiko S = I S
Makemake ʻia: Hoʻohālikelike ʻana o ka ikaika o ke kani ma nā wahi S, R, a me Q (I S : I R : I Q )
Lōlā:
Ka ikaika o ke kani ma ke kiko S:
Ka ikaika o ke kani ma ke kiko R:
Ka ikaika o ke kani ma ke kiko Q :
Hoʻohālikelike ʻana o ka ikaika o ke kani ma nā wahi S, R, a me Q:
6. ʻO ke kiko A ʻo P mai ke kumu kani, ʻo ke kiko B ʻo 2P mai ke kumu kani a ʻo ke kiko C ʻo 4P mai ke kumu kani. ʻO ka hoʻohālikelike ʻana o ka ikaika o ke kani ma A , B, a me C ʻo …
ʻIke ʻia:
Ka mamao o ke kiko A mai ke kumu kani (r A ) = P
Ka mamao o ke kiko B mai ke kumu kani (r B ) = 2P
Ka mamao o ke kiko C mai ke kumu kani (r C ) = 4P
Ka ikaika o ke kani ma ke kiko A = I A
Ka ikaika o ke kani ma ke kiko B = I B
Ka ikaika o ke kani ma ke kiko C = I C
Makemake ʻia: Hoʻohālikelike ʻana o ka ikaika o ke kani ma A, B, a me C (I A : I B : I C )
Lōlā:
Ka ikaika o ke kani ma ke kiko A:
Ka ikaika o ke kani ma ke kiko B:
Ka ikaika o ke kani ma ke kiko t C:
Hoʻohālikelike ʻana o ka ikaika o ke kani ma A, B, a me C:
7. He 100 kānaka e hīmeni ana. Inā ʻo ka pae o ka ikaika o ke kani o kekahi haumāna i ke mele ʻana he 40 dB (me ka manaʻo he like kēlā me kēia keiki), a laila ʻo ka ikaika o ke kani i loaʻa mai … (I o = 10 -12 Wm -2 )
ʻIke ʻia:
Ka pae o ka ikaika o hoʻokahi haumāna (TI) = 40 dB
ʻO I = 10 -12 W/ m2
Ka helu o nā haumāna (x) = 100
Makemake ʻia: Ka ikaika o ke kani o 100 mau haumāna
Lōlā:
Ka ikaika o ke kani o kahi haumāna:
Ka ikaika o ke kani o 100 mau haumāna:
ʻO wau x = (x)(ʻO wau)
ʻO wau x = (100)(10 -8 ) = (10 2 )(10 -8 )
ʻO I x = 10 -6 W/ m2
8. ʻO ka ikaika o ke kani o 100 mau mīkini like he 10 -7 Watt.m -2 . Inā ʻo I = 10 -12 Watt.m -2 , a laila ʻo ka pae o ka ikaika o ke kani o kahi mīkini…
ʻIke ʻia:
Ka ikaika o ke kani o 100 mau mīkini (I x ) = 10 -7 Watt.m -2
ʻO I = 10 -12 W/ m2
Ka helu o nā mīkini (x) = 100 = 10 2
Manaʻo ʻia: Ka pae ikaika o ke kani o kahi mīkini (TI)
Lōlā:
Ka ikaika o ke kani o ka mīkini:
ʻO wau x = (x)(ʻO wau)
10 -7 = (10 2 )(I)
ʻO I = 10 -7 / 10 2 = (10 -7 )(10 -2 ) = 10 -9
Ka pae o ka ikaika o ke kani o kahi mīkini (TI):
9. ʻO ka ikaika o ke kani o kahi kumu kani he 6 x 10 -6 W/cm² . Inā hoʻonui ʻia ka pae ikaika o ke kani e 10 db, e hoʻoholo i ka ikaika o ke kani.
ʻIke ʻia:
Ka ikaika (I) = 6 x 10 -6 W/cm 2
I o = 10 -12 W/m 2 = 10 -12 W / 10 4 knm 2 = 10 -16 W/cm 2
Makemake ʻia: Ka ikaika o ke kani
Lōlā:
ʻO ka hoʻohui ʻana o ka ikaika leo o 10 W/m2 = 10 -3 W/cm2 ua like ia me ka hoʻohui ʻana o ka pae ikaika leo o 10 dB. ʻO ka hoʻohui ʻana o ka ikaika leo o 10 W /m2 = 10 -2 W/cm2 ua like ia me ka hoʻohui ʻana o ka pae ikaika leo o 20 dB. A pēlā aku.
Inā hoʻonui ʻia ka pae ikaika e 10 dB, piʻi ka ikaika e 10 -3 W/cm² . No laila, lilo ka ikaika i 6 x 10 -6 W/cm² ) + ( 10 -4 W/cm² ) = (6 x 10 -6 W/cm² ) + (100 x 10 -6 W/cm² ) = 106 x 10 -6 W/ cm².
10. Aia ka mea nānā A ma kahi mamao o 5 m mai kahi kumu leo. ʻOiai ʻo ka mea nānā B ma kahi mamao o 10 m mai ke kumu leo like. No laila, ʻo ka lakio o ka ikaika o ke kani i lohe ʻia e nā mea nānā B a me A he…
ʻIke ʻia:
ʻO ka mamao o A mai ke kumu o ke kani (r A ) = 5 mika
ʻO ka mamao o B mai ke kumu o ke kani (r B ) = 10 mika
Makemake ʻia: Ka lakio o ka ikaika o ke kani i lohe ʻia e nā mea nānā ʻo B lāua ʻo A
Lōlā:
IB : IA = 1 :4
ʻO ka pane pololei ʻo B.
- He aha ka ikaika o ke kani a pehea kona ʻokoʻa mai ka leo nui?
- paneʻO ka ikaika o ke kani ke ana o ka mana kani no kēlā me kēia ʻāpana, i ana pinepine ʻia ma nā watts no ka mika kuea (W/m2). ʻO ka leo nui, ma ka ʻaoʻao ʻē aʻe, he ʻike pilikino ia o ka ikaika o ke kani, i ana pinepine ʻia ma nā decibels (dB). ʻOiai ʻo ka ikaika he ana kino kūpono, ʻo ka leo nui he ʻike pilikino ia e hiki ke ʻokoʻa ma waena o nā kānaka.
- Pehea e pili ai ke kānāwai huinahā hoʻohuli i ka ikaika o ke kani?
- paneʻŌlelo ke kānāwai huinahā inverse e emi ana ka ikaika o ke kani me ka huinahā o ka mamao mai ke kumu. ʻO ke ʻano kēia, i kou neʻe ʻana aku mai ke kumu, e emi koke ana ka ikaika.
- No ke aha i ʻole ai e like ka nui o ka leo i ʻike ʻia i nā leo ʻelua me ka ikaika like?
- paneHe ʻokoʻa nā ʻike o ka pepeiao kanaka i nā alapine like ʻole. No laila, inā like ka ikaika o nā leo ʻelua akā ʻokoʻa nā alapine, hiki ke manaʻo ʻia he ʻokoʻa ko lākou mau pae leo.
- Pehea e pili ai ka ikaika o ke kani i ka amplitude o kahi nalu kani?
- paneUa like pololei ka ikaika o ke kani me ka huinahā o ka amplitude o ka nalu kani. Inā pāpālua ʻia ka amplitude o kahi nalu kani, e hoʻonui ʻia ka ikaika ma ka hapa o ʻehā.
- No ke aha e lohe maopopo ʻia ai ka hāwanawana i loko o kahi lumi mālie, akā, ʻaʻole hiki ke lohe ʻia ka hāwanawana like ma ka ʻaoʻao o ka wailele e halulu ana?
- paneʻO kēia ma muli o ka ʻokoʻa o nā pae walaʻau hope. I loko o kahi lumi mālie, haʻahaʻa ka pae walaʻau hope, e ʻae ana i ka hāwanawana e kū i waho. Ma ka ʻaoʻao o kahi wailele, uhi ka walaʻau nui i ka hāwanawana mālie, e hoʻolilo ana iā ia i mea hiki ʻole ke lohe ʻia.
- He aha ka paepae o ka lohe a me ka paepae o ka ʻeha e pili ana i ka ikaika o ke kani?
- paneʻO ka paepae o ka lohe ʻana ke kani mālie loa e hiki ai i ka pepeiao kanaka maʻamau ke lohe, ma ke ʻano maʻamau ma kahi o ʻO ka paepae o ka ʻeha, ʻo ia hoʻi nā pae kani e hiki ai ke hōʻeha a me ka hōʻino paha i ka pepeiao, aia ma kahi o .
- No ke aha i ʻoi aku ai ka mālie o nā leo ke lohe ʻia ma o ka paia a i ʻole kekahi mea pale ʻē aʻe?
- paneKe hālāwai nā nalu kani me kahi pale, ua hōʻike ʻia kekahi o ka ikehu, ua omo ʻia, a ua hoʻoili ʻia. Hoʻemi ka omo ʻana a me ka hoʻihoʻi ʻana i ka ikaika o ke kani i hoʻoili ʻia ma o ka pale, e hoʻolilo ana i mea mālie.
- Pehea ka hopena o ke alapine (frequency) i ka ikaika o ke kani i omo ʻia e nā mea?
- paneHe ʻokoʻa nā coefficients omo o nā mea like ʻole no nā alapine like ʻole. No ka laʻana, ʻoi aku ka paʻakikī o ke omo ʻana i nā alapine haʻahaʻa (nā leo bass) a hiki ke komo maʻalahi i loko o nā paia ma mua o nā alapine kiʻekiʻe.
- No ke aha e hoʻopukapuka kālā ai nā wahi ʻaha mele a me nā hale kiʻiʻoniʻoni i nā hana pale leo a me nā hana acoustic?
- paneKōkua ka pale leo i ka pale ʻana i ka walaʻau o waho i makemake ʻole ʻia a pale i ke kani mai ka liki ʻana ma waho, e hōʻoiaʻiʻo ana e lohe wale ʻia ke kani i makemake ʻia i loko o ka wahi. Kōkua nā hana leo i ka kaohi ʻana i nā ʻōlinolino leo i loko o ka wahi e hōʻoia i ka hoʻolaha leo maopopo a like.
- Pehea e pili ai ka ikaika o ke kani i ka hiki ke hōʻino ʻia ka lohe?
- paneʻO ka lōʻihi o ka hoʻolaha ʻana i nā leo ikaika kiʻekiʻe hiki ke alakaʻi i ka hōʻino a i ʻole ka nalowale o ka lohe. He mea nui ka ikaika a me ka lōʻihi o ka hoʻolaha ʻana; ʻoiai nā hoʻolaha pōkole i nā leo nui loa hiki ke hōʻino mau loa, ʻoiai hiki i ka hoʻolaha lōʻihi i nā leo leo iki ke lilo i mea ʻino.
