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Old 10-12-2005, 01:25 AM   #32
boggy
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Default Re: Zasto "iste" stvari zvuce "razlicito"?

Quote:
Originally Posted by lesha
moguce je i to vrlo lako - obrtanjem faza..
Ima i jos gore, kad recimo wavu nesto uradi program prilikom prebacivanja u aiff... potpuno bez veze...
recimo posaljemo mu 00 (apsolutna tisina) pa ide Hann wavelet na 1kHz,... neposredno pre pojave Hann-a pojave se haoticne povremene vrednosti -00 ("obrne" znak tisine)... to je bilo jako tiho... mozda 1/2 bita,... ali se pitam zasto uopste konvertor "prcka" po tome, i zasto se pojavljuje jako blizu pojave signala ako je konvertor dobro uradjen i ako mu je zadatak da konvertuje a ne da izmislja... inace aiff i wav su bili potpuno istih karakteristika, samo format se menja... inace ostale stvari su bile sasvim ok... do u bajt.
Znaci nasli smo nesto apsolutno necujno, ali otkud cak i to... nema razloga osim da bude bug.
Koliko takvih necujnih sitnica postoji u softveru... to ni proizvodjac ne zna dok se ne pronadju.
Evo tih test fajlova ako je neko zaludan da testira...
Koga zanima, opis wav formata se nalazi na sledecem linku.

Ako nista drugo imate apsolutne tisine u test signalu, nije ga lako dobiti klasicnim snimanjem.... ovaj je pravljen vestacki...
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Last edited by boggy; 10-12-2005 at 02:48 AM.
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