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Live Sound Razmenite iskustva o uredjajima za live sound koji obuhvataju opremu i rad sa zvukom uzivo.

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Old 03-10-2013, 09:21 PM   #1
hofmann
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Default Uskladjivanje impedansi out->in

Moje pitanje je vrlo jednostavno kolika treba da bude maksimalna razlika izmedju izlazne impedanse (instrumenta) i ulazne impedanse npr miksera ili neke druge sprave koja prima signal.

Treba mi konkretan odgovor 8x, 7x veca ili, ako ti je izlazna 550 oma ulazna treba da je najvishe 10k oma ne preko 12 K oma.

Tog tipa odgovori me zanimaju.

znam da izlazna mora da je manja od ulazne
znam da sto je izlazna impedansa manja a ulazna veca to vishe srednji i visoki dolaze do izrazaja tj tanji se frekvencijski spektar basa.
znam da postoje HI-Z i LO-Z ulazi i instrumenti i mikrofoni sa HI-Z i LO-Z izlazima.
Sve mi je to jasno nego mene zanima ovi cvarci i kavurma da vi mene kazete ako znate
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Old 03-10-2013, 11:57 PM   #2
hofmann
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Default Re: Uskladjivanje impedansi out->in

moracu sam sebi da odgovorim na pitanje

evo ako nekoga ovo uopste zanima ovde se krije odgovor.

http://sonido.uchile.cl/articulos/impedancia.pdf
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Old 03-10-2013, 11:58 PM   #3
hofmann
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Default Re: Uskladjivanje impedansi out->in



ladno sam lupio i pogodio jeste 7 do 10x veca.

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Old 04-10-2013, 12:10 AM   #4
nikolaivanic
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Default Re: Uskladjivanje impedansi out->in

generalno, ulazna impedansa treba biti par puta veca (moze i 100x) od izlazne da bi doslo da verne reprodukcije spektra zvuka. Ne pojacava to visoke i srednje vec prenosi original... kada je impedansa ulaza manja, dolazi do gusenja uglavnom visokih frekvencija...
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Old 04-10-2013, 10:48 AM   #5
hofmann
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Default Re: Uskladjivanje impedansi out->in

nisam neki ekspert da tvrdim ali evo ga isecak

For the most part, this really isn't all that important for recording music. It may come up here or there, but most of the electronics mumbo jumbo has been taken care of for you so you can focus on music. However, there is something you should be aware of. The lower the output impedance and the higher the input impedance, the more aggressive in the mids and highs the signal is going to tend to be. This is due to inductive and capacitive reactance. You certainly don't need to understand capacitive reactance to be a killer recording dude/chick, but if you are interested you can look into this more.

i ceo clanak

http://www.recordingreview.com/artic...-and-Hi-Z.html
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Old 04-10-2013, 05:15 PM   #6
hofmann
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Default Re: Uskladjivanje impedansi out->in

hoce li neko reci nesto, jel ovaj clanak tacan ili nije?
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Old 04-10-2013, 10:10 PM   #7
nikolaivanic
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Default Re: Uskladjivanje impedansi out->in

Quote:
Originally Posted by hofmann View Post
nisam neki ekspert da tvrdim ali evo ga isecak

For the most part, this really isn't all that important for recording music. It may come up here or there, but most of the electronics mumbo jumbo has been taken care of for you so you can focus on music. However, there is something you should be aware of. The lower the output impedance and the higher the input impedance, the more aggressive in the mids and highs the signal is going to tend to be. This is due to inductive and capacitive reactance. You certainly don't need to understand capacitive reactance to be a killer recording dude/chick, but if you are interested you can look into this more.

i ceo clanak

http://www.recordingreview.com/artic...-and-Hi-Z.html
Objasnjenje je za pocetnike. Za ozbiljne poznavaoce impedansi to je lupetanje. Pridrzavaj se onog sto sam napisao gore , to je sustina
nikola, ing

edit: serem, nije lupetanje, samo je pojednostavljeno...
hm..

Last edited by nikolaivanic; 05-10-2013 at 04:45 PM.
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