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Pliki WAVE - Forum Elektroniczne

Pliki WAVE

Zagadnienia związane z hardware i software
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dawid
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Pliki WAVE

Postautor: dawid » pn 18 lip 2005, 22:55


shg
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Re: Pliki WAVE

Postautor: shg » pn 18 lip 2005, 23:24


PI
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wave

Postautor: PI » wt 19 lip 2005, 0:02


dawid
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pliki wave

Postautor: dawid » śr 20 lip 2005, 23:10

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

PI
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WAVE

Postautor: PI » śr 20 lip 2005, 23:37

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

shg
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Re: pliki wave

Postautor: shg » czw 21 lip 2005, 9:35


dawid
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pliki wave

Postautor: dawid » czw 21 lip 2005, 22:59


dawid
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pliki wave

Postautor: dawid » czw 21 lip 2005, 23:15


shg
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Postautor: shg » pt 22 lip 2005, 0:59


dawid
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pliki wave

Postautor: dawid » pn 25 lip 2005, 15:08

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.


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