just an odd idea hits me.
well,usually pcm file displayed as waveform in music softwares
they're all some kind of sine waves combination
if you just write a sine wave,say 500hz.
play it.you get your sine wave sound.
this is OK.but what if your just generate abs of your sine wave?
well,i did.and....it still sounds like sine wave sound....
negative part does the same thing
i guess other song may be the same(not tested yet)
so what does negative waveform actually do
what's the different between positive and negative?
and if there is no difference,can we just sample sound with one half axis?
i guess not??
Edited by tracegame, 05 December 2012 - 11:14 AM.