Osnova svega je ovo (sa gornjeg linka)...
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Rember that the microphone connections in PC soundcards are not standardized...
U nekim slucajevima vazi i ovo...
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Quite many soundcards do not supply any kind of bias voltage to micrphone connector. Those soundcards are designed to be used with dynamic microphones and the input is more sensitive
... sto je, opet, jedan doprinost nestandardnosti!
Stereo mikrofon se moze bez ikakve bojazni povezati po gornjoj shemi samo, nije sigurno da ce raditi kao stereo mikrofon. Negde postoji i ova opcija koja, donekle, resava problem...