In article <[email protected]>, Dave Liquorice <[email protected]> wrote: > On Tue, 31 Mar 2020 09:53:16 +0100, Jim web wrote:
> > But with digital LPCM transfers they should just 'pass the parcel' and > > deliver at the end of the chain what got put in at the start. > Assuming the clocks at each end are locked. If they aren't clicks are a > common side effect as the reciever has to drop or invent a frame of data > once they get too far apart. These can come in groups spaced away from > each depending on how the clocks drift relative to each other and how > stable (jitter) one or the other are. Yes. FWIW SPDIF essentially XORs the clock with the data. Then up to the RX to get it right. Domestic audio 'optical fibre' (sic) is meant to be the same but using on/off light pulses instead of wagging a voltage level. But many of the optical cables sold for this at home are crap. The better USB devices for audio take control of the data transfers and buffering. Slight advantage here is that kit should specify the transfer mode it uses so you can check if it at least claims to do this in the best way. Not all kit works as per the above, but decent kit should. Can't comment on detail about bluetooth, etc, as I decided not to step into that. Jim -- Electronics https://www.st-andrews.ac.uk/~www_pa/Scots_Guide/intro/electron.htm Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html biog http://jcgl.orpheusweb.co.uk/history/ups_and_downs.html Audio Misc http://www.audiomisc.co.uk/index.html _______________________________________________ get_iplayer mailing list [email protected] http://lists.infradead.org/mailman/listinfo/get_iplayer
