ceejay wrote: > GreenMan Wrote: >> >> HOWEVER, I just read in an archived discussion in this forum where is >> was stated that there was NO jitter associated with playing music >> straight from the SB because "the computer takes care of it". Is this >> accurate? It may make the Benchmark overkill for what I need, at least >> on the SB side of the house. > > Not sure which thread you are looking at here, but to be clear... > > - The computer takes care of any jitter in the link from the computer > to the SB. This is done using ethernet protocols, what arrives in the > SB will not suffer from jitter at all. This is because this transfer > is strictly in the digital domain.
It's not actually strictly in the digital domain (it still comes down to voltage changes on wire) but ethernet protocols are more robust than SPDIF signals. The lack of jitter is really because the transfer is asynchronous, i.e. no timing information is carried in the audio data. > - The computer can't help at all in the process of getting the bits out > of the SB's buffer into the DAC or digital outputs. Jitter is definitely > a potential issue here. A digital output from an SB or similar device > is, in a real sense, not in a digital domain at all, its an analogue > signal attempting to carry ones and zeros... ... and producing a synchronous output. The timing information for the digital stream *is* the digital stream, i.e. the receiving device reconstructs the clock signal directly from the stream of bits. This is (one area) where jitter is introduced. NB. This is for *all* digital sources, not just the SB. R. _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
