I was doing some measurements recently on Transporter, using the dScope analyzer playing through Transporter in "standalone DAC" mode. One of the things I thought could be holding us back was jitter from the analyzer's clock, and on the s/pdif connection between the analyzer and Transporter.
So I added a feature to send a word clock output signal on our s/pdif ports, to which the analyzer can then "slave" its clock. Below is a plot of a 8KHz sine wave with and without word clock sync. Neat eh? The jitter from the analyzer was not even particularly bad compared to many devices I've measured - around 200ps RMS. But there is quite a difference compared to Transporter's internal clock! So if you have a CD player or other source that can take a word clock input, you will be able to hook it up like this by checking an option to use word sync when in DAC mode. +-------------------------------------------------------------------+ |Filename: jitter.gif | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=1566| +-------------------------------------------------------------------+ -- seanadams ------------------------------------------------------------------------ seanadams's Profile: http://forums.slimdevices.com/member.php?userid=3 View this thread: http://forums.slimdevices.com/showthread.php?t=26202 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
