Quote:
Originally Posted by tdelahanty
Your thoughts have crossed my mind too. A friend of mine always listens to native format and insists it sounds more detailed. If you look at the math up-sampling should increase detail (resolution) by plotting extra data between native sample points. Indeed we may be hearing artifacts from digital filtering or/and the process of up-sampling may be doing things Science does not fully understand yet.
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Upsampling + interpolation doesn't increase the true resolution of the source. It does interpolate between the source data points and adds extra calculated samples. If the over sampling rate is an integer multiple of the source frequency the math is very straight forward.
The biggest impact is it moves the alias frequencies far outside the audio band, allowing for simpler digital and analog reconstruction filters.
I think that is what we hear when we over sample - the filters used by the DAC, not the oversampling process itself.
Tom
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Last edited by W9TR; 01-17-2020 at 12:44 PM.
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