De-emphasis: sharing some results
Reply #45 – 2011-08-24 15:48:53
Ever wondered that Audacity maybe isn´t the best thing for doing highly accurate analysis? So please if any Moderator is reading here, i think it is time to kick this thread to the Recycle bin The thread starter only proved that pasting existing values into the Audacity Equalizer works. The rest imho is only unfounded claims with senseless graphs proving nothing. Reading that one makes me think there are missing some fundamentals: This is a mathematical analysis of the performance of the filter and as such, is free of experimental error. The point is, deemphasizing is experimental , I mean, you output files with a different spectrum. You can't basically assert "here is the mathematical formula that is supposed to be applied, I'll draw how it performs, hence we will be sure that the whole processing of quantified samples (nothing is continus, whether being time or amplitudes) is indeed the same". That is nonsense, you cannot plot a continous fonction of the frequency and compare it that much to "the few" calculations that will actually be made by any existing software. The facts bandpass delivers are spot on and show that sox works 100% "the few" calculations... Huh!? I don´t like the idea that some people read in here and get the impression sox is doing wrong because of some misleading pics. Alternatively you may rename the thread to: "I discovered the mysterious world of audio editors and have to share some funny pics"