Also, within DACs there is a process where the 1) noise, RF/EMI, etc coming in on the digital data stream and is (hopefully) cleaned up a bit and 2) the bits are reconstructed to simulate an analog waveform in order to output an analog signal to the downstream analog audio gear. If there is data loss detected during the digital-to-analog waveform reconstruction process, algorithms are applied to try to interpolate (artificially replace) missing data in order to complete the affected slice of the waveform.
The more of 1) that the DAC has to deal with, the more that will slip through (nothing’s perfect) and effect the signal in the DACs digital/analog circuitry, thus degrading the sound.
The more of 2), the more artificial interpolation due to data loss upstream. This is an imperfect process and can audibly effect the sound quality that results.
Re: "the difference in sound character" of different digital cables can be influenced by the metallurgy of various metal conductors, the dielectric chosen, shielding (or not) and cable construction techniques to further eliminate noise, the integrity/efficiency of the binding of conductors to connectors, and perhaps most importantly IMO, the resulting impedance match/mismatch imposed on upstream and downstream components.
Dave
The more of 1) that the DAC has to deal with, the more that will slip through (nothing’s perfect) and effect the signal in the DACs digital/analog circuitry, thus degrading the sound.
The more of 2), the more artificial interpolation due to data loss upstream. This is an imperfect process and can audibly effect the sound quality that results.
Re: "the difference in sound character" of different digital cables can be influenced by the metallurgy of various metal conductors, the dielectric chosen, shielding (or not) and cable construction techniques to further eliminate noise, the integrity/efficiency of the binding of conductors to connectors, and perhaps most importantly IMO, the resulting impedance match/mismatch imposed on upstream and downstream components.
Dave