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Forum Elektroniczne • Pliki WAVE
Strona 1 z 1

Pliki WAVE

: pn 18 lip 2005, 22:55
autor: dawid

Re: Pliki WAVE

: pn 18 lip 2005, 23:24
autor: shg

wave

: wt 19 lip 2005, 0:02
autor: PI

pliki wave

: śr 20 lip 2005, 23:10
autor: dawid
Dzienki za te odpowiedzi, troche mi ot rozjasnilo problem.
Co do jednostki volt. to poprostu mam programik co mi pokazuje amplitude pliku wave jako volty i tylko dlatego tak naisalem.

A co do normalizacji tych plikow to mi to troche nie wychodzi, bo jak podziele przez najwieksza mozliwa wartosc w pliku to zostaje bardzo mala wartosc. Jak ktos wie cos wiecec o normalizacji plikow wave to będę bardzo wdzieczny jak sie podzieli zemną tą wiedzą

WAVE

: śr 20 lip 2005, 23:37
autor: PI
Witam; mam wrażenie, że jednak potrzebny jest bardziej merytoryczny opis problemu, na razie bowiem obracamy sie w kręgu pewnych domniemań co do jego istoty. Czy chodzi o teoretyczne podstawy przetwarzania A/C, czy też mamy konkretne urzadzenie lub system i problem dotyczy parametrów sygnałów we/wy na poziomie analogowym.
Wielokrotnie spotykałem się tu i nie tylko z próbami przedstawiania problemów technicznych przy uzyciu pewnych dziwnych skrótów myslowych lub wręcz jakiegoś psudotechnicznego żargonu. Namawiam gorąco do rzeczowego i dokładnego opisu sprawy, bo to ułatwia odpwiedź i jak się domyślam, pozwala zaangazować się ludziom o ściśle okreslonej wiedzy.
PI

Re: pliki wave

: czw 21 lip 2005, 9:35
autor: shg

pliki wave

: czw 21 lip 2005, 22:59
autor: dawid

pliki wave

: czw 21 lip 2005, 23:15
autor: dawid

: pt 22 lip 2005, 0:59
autor: shg

pliki wave

: pn 25 lip 2005, 15:08
autor: dawid
shg napisal
I pytanie, czy korelację liczysz na wartościach pobranych bezpośrednio z pliku, czy przeskalowujesz je na inny zakres?



Tak wiec korelacje liczę na wartosciach pobranych bezpośrednio z pliku, a problem jest potem z wpisaniem tego spworotem, dlatego że float wytrzymuje wszystkie obliczenia zwiazane z korelacja, ale musze potem wpisac to spowrotem np. na 8 bitow jezeli plik wave bedzie mial 8 blitow na próbkę. I tu właśnie nie wiem co z tym zrobić bo jak napisalem wczesniej jak będą zaduże wartości to przy konwersji z float na 8 bitow to mi obcina dane i zostaja smieci.