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There was some discussion about DACs and bits a couple pages ago, and how audiophiles were arguing the whole "bits AREN'T bits, digital audio is a SNAPSHOT blah blah". This is ignoring some pretty fundamental mathematical proof as to how DACs, digital sampling, and discrete signals work in general. You have some arbitrary continuous (analog) signal. Perform the fourier transform on it, and observe it in the frequency domain. Sample it at a sufficient sampling rate (the Nyquist rate, 2x the highest frequency), and you end up with the discrete-time representation of the same signal. Now, audiophiles would lead you to believe that because you're not sampling THE ENTIRE WAVEFORM, there is information lost. Truth is, there isn't. If you take the discrete-time fourier transform of the equivalent digital signal, and it was sampled at a sufficient rate to prevent aliasing, you will find that the signal contains THE EXACT SAME FREQUENCY INFORMATION (albiet, mirrored at every multiple of the sampling frequency, which is why the sampling rate needs to be 2x the highest frequency). The two signals in their respective frequency domains are identical. This is fundamental to signal processing and in fact every digitally sampled thing ever. ...but did you know that fourier transforms color your waveform? For the low price of $4500, you can now purchase the FourierPRO-X+, and never again will you deal with imperfect transformations. For $1500, the SOUNDSTAGE-XTRANSFORM displays in real time your audio in the Soundstage domain. Never again wonder if your system is properly spacing instruments.
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Oct 27, 2011 17:23
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| # ¿ Apr 25, 2024 22:37 |
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Are you content living your life, believing that $10k power cables is all there is? Or do you want to take the red pill, and see how deep the rabbit hole goes? Holy gently caress: http://forums.anandtech.com/showthread.php?t=2332488 "My Bathtub Water Cooling System Project for Audio System" Just read that thread. It's not too long, and just mindbogglingly amazing. Here's a sample video (warning, this is Masaokis-level of mental illness): https://www.youtube.com/watch?v=osT8DHpfUz0 Please note that he believes this to be the most cost-effective solution, since he is "broke" after spending SIXTY THOUSAND DOLLARS on power cables for his ~$800 speaker setup hooked up to a near-worthless (at this point due to the age of the componenets) HTPC.
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Dec 10, 2013 02:02
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