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Old 18-09-2011, 03:18 PM   #1
boggy
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Default Re: Dither nedoumica

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Originally Posted by Danilo S View Post
Vjerovatno zbog neznanja ili možda nekih, meni nepoznatih okolnosti dolazim u meni zbunjujuću situaciju. Pokušao sam da si ju razjasnim pretraživajući forum. Nisam uspio, pa eto novog threada.

Naime, imam završen miks u Cubase 5. Project setup: sample rate 48kHz, format 24 bit. Namjera mi je bila da eksportujem mix (48/24), da uradim mastering, takođe s istim project setup-om pa tek onda da eksportujem u finalni wav (44/16), sa ditheringom.

Pitam se zašto je vidljiv šum na mixu (48/24), kada ga editujem u SF-u, a nigdje nisam koristio dithering? Kada projekt exportujem u 44/16 wav, nema šuma. Ako neko razumije i može da pomogne unaprijed hvala.
Dithering je vrsta suma... btw
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Old 18-09-2011, 03:25 PM   #2
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Default Re: Dither nedoumica

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Dithering je vrsta suma... btw
Toliko znam. Znam i njegovu svrhu... Čitao sam prije postovanja, ali hvala na opasci.
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Old 18-09-2011, 03:38 PM   #3
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Default Re: Dither nedoumica

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Toliko znam. Znam i njegovu svrhu... Čitao sam prije postovanja, ali hvala na opasci.
Dobro... shvatam... zato sam bio nesto konkretniji u drugom postu...
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Old 18-09-2011, 03:43 PM   #4
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Default Re: Dither nedoumica

Elem, ali koja je va?a preporuka?

Eksportovati 48/24, pa raditi mastering i tek onda u 44/16 ili odmah da ekportovani miks ide dolje na 44/16 (sa dithrom naravno) jer u pitanju downsampling?
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Old 18-09-2011, 03:46 PM   #5
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Default Re: Dither nedoumica

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Elem, ali koja je va?a preporuka?

Eksportovati 48/24, pa raditi mastering i tek onda u 44/16 ili odmah da ekportovani miks ide dolje na 44/16 (sa dithrom naravno) jer u pitanju downsampling?
Ako uradis na oba nacina, a ne mozes da se odlucis koji ti daje bolje rezultate, onda ti je svejedno.
U svakom slucaju ti treba 48/24 -> 44/16
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Old 18-09-2011, 04:43 PM   #6
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Default Re: Dither nedoumica

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Originally Posted by Danilo S View Post
Elem, ali koja je va?a preporuka?

Eksportovati 48/24, pa raditi mastering i tek onda u 44/16 ili odmah da ekportovani miks ide dolje na 44/16 (sa dithrom naravno) jer u pitanju downsampling?

Ja obično, ako je mix ITB exportiram na 88.2/32bit!
Matematički je downsampling puno bolji ako ide s 88.2 na 44.1 nego s 48 na 44.1. Ja to tako napravim iako me komotno netko mo?e sru?it s teorijom. Neki instinkt me vodi da exportiram na 88.2, makar uglavnom sve projekte radim na 48...
A za?to 32 bita? Zbog toga ?to u miksu nikada ne pustim nikakav dither da probije iz nekog plugina i onda renderiram maksimalnu bit-rezoluciju, zbog repova od reverba. Kasnije dither to sve u masteru spusti na 16 bita.
Naposlijetku, kada je mastering procesiranje gotovo, snimim opet 88.2/32 fajl, ali u njemu je već dither noise postavljen na 16 bita. Samo ne radim downsampling u cubase-u ili wavelabu nego to ostavim da mi odradi r8brain (samostalni program koji ima bolje rezultate u downsamplingu od ovih...)
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Old 18-09-2011, 03:30 PM   #7
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Default Re: Dither nedoumica

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Dithering je vrsta suma... btw
Rekao bih da je to čoveku jasno. Ono ?to zbunjuje je smanjivanje "?uma" POSLE ditheringa u SF (ako sam dobro razumeo prvi post) Pa bih rekao da to mo?e da ima veze ili sa HighPassom tokom eksportovanja 16/44 verzije (tj. da je ustvari bio u pitanju "brum").

Pozdrav.,

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