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Dizajn i konstrukcija studija Diskusije i pomoc oko svih aspekata dizajna i konstrukcije kucnog/pro studija, gluve ili kontrolne sobe, tretman zidova i materijala...

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Old 13-05-2009, 01:32 PM   #1
quake
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Default Re: difuzor panel

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Efikasno difuziono polje koje razvije difuzor, primjer:
difuzor koji ide do recimo 565Hz (koju svake toliko napominju kod RPG difuzora...)... 343m/s (cca. brzina zvuka) : (dijeljeno) sa frekvencijom 565Hz = cca. 0.607.
Onda 0.0607 X (pomno?i? sa) 3 = cca. 1.82m.

To je distanca koja je priporučljiva da bude? uddaljen od njega.
Jednađba je iskustvena! i ne teoretska.

500-600Hz da se difuzira je dovoljna dubljina od oko 18-20cm.
...ima u tome mnogo teorije... RPG vrlo rado optimizira i dizajnira difuzore da su efikasniji od klasičnih Schroederovih...

Osobno bih gađao od cca. 600-cca.6000Hz.
Boggy ka?e da od 1000Hz...
Za ovo mi soba ispunjava sve uslove jer sam na 2m od difuzora.Mislim da je Boggy rekao da nema smisla praviti difraktal koji ce raditi tek od 1khz.
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Old 13-05-2009, 03:52 PM   #2
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Default Re: difuzor panel

Valja!
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Old 13-05-2009, 04:41 PM   #3
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Ne znam kako si izračunao f min 171Hz (ja sam morao da utipkam ovdje http://www.mh-audio.nl/diffusor.asp#calcul teoretičku dubljinu od 70cm pa sam dobio f low 174Hz i najdu?u letvu od 40cm) ali nema veze.

Kad izračuna? f min i f max - difuzija ne prestaje tamo, nema nekog strmog cut offa, koeficient difuzije polako pada; recimo u praksi su efikasni pribli?no i do pola oktave (1/2) izpod f min.
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Old 13-05-2009, 05:12 PM   #4
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... više puta sam zapazio, da 1D dizajn treba više prostora (nego 2D) da razvije neko optimalno difuziono polje, možda je Boggy na to i mislio kad je rekao da izpod 1000Hz ne priporučuje u malim prostorijama...
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Old 13-05-2009, 11:07 PM   #5
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Default Re: difuzor panel

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... više puta sam zapazio, da 1D dizajn treba više prostora (nego 2D) da razvije neko optimalno difuziono polje, možda je Boggy na to i mislio kad je rekao da izpod 1000Hz ne priporučuje u malim prostorijama...
Da, obicno tako ide sa sobama 3x4x2.6 do 4x5x2.6. Samo kod vecih ima smisla. Znaci kompromis. Ali... ALI(!)... ne treba smetnuti s uma da je, subjektivno, difuzino polje iznad 1kHz prakticno najznacajnije za dobre rezultate (tranzijenti u miksu ili "definicija" su tu.).. znaci to je ZGODNO mesto za kompromis i pojeftinjenje cele price...
Ici sa difuzijom ispod 1kHz je jako lepo ako se moze... ali nije najneophodnije u zivotu. Usteda u materijalu moze biti znatna.

pozdrav

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Old 23-05-2009, 09:39 PM   #6
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Nisam jos nista uradio u vezi difuzora,ostavio sam to za pred sam kraj,a to je na moju veliku radost SADA.Bio sam vredan pa evo jos slika kako su tekli radovi.......jos okvira za apsorbere....
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Old 23-05-2009, 09:41 PM   #7
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...jos kamene vune,opet tezine 120kg/m3.....sa ovim sam prekucao 50 pakovanja......
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Old 23-05-2009, 09:42 PM   #8
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Old 23-05-2009, 10:47 PM   #9
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... i ?to razmi?lja? oko zadnjeg zida?
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Old 23-05-2009, 11:03 PM   #10
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... i ?to razmi?lja? oko zadnjeg zida?
Za sada se premisljam oko tri 41 p.m. QRD difuzora ili da nekako ipak izracunam QRD difraktal p.m.7,mnogo mi je lakse da ga uradim jer nazad hocu da pokrijem citavih 200cm/130cm.Ali...posto ste me posavetovali da idem od 1000hz na gore nisam bas siguran za difractal ali mislim da je izvodljivo?????
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