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Originally Posted by Dan Lavry  At 20KHz, the shape of the wave may not be relevant from non audible harmonics standpoint but the shape is still very relevant, because you need to know the amplitude and the phase of the fundamental. |
Dan, I know - I was just referring to harmonics. People look at post-DA 5k "square" waves with an oscilloscope, complaining that at 44.1k sampling rate, the wave doesn't look square at all...
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Originally Posted by mohthom I read in a number of technical and journal papers that lower end multi-channel ADC and DACs will often not link in the way that we want them to, meaning that one channel will be played back fractionally (~10 samples) before the other in a stereo setup. Is this problem exacerbated in multi-channel setups (i.e. is this problem six times worse in a 5.1 setup)? |
No. Usually converters come in stereo, i.e. one chip for two channels. I don't know about cheap converters, but in the olden days of digital audio (eighties), e.g. some CD players used to have converters with only one actual DAC for both channels, causing a slight offset between channels. I don't know whether this kind of thing still exists. But even if, in a multichannel setup, tis would only affect pairs of channels and not cause increasing delay from 1 thru 6 or whatever.
Daniel