I don't have Sean's scope but I have been measuring jitter indirectly using a spectrum analyzer on the clock (not the audio out, but the clock itself). This is quite sensitive to changes in jitter, you can see spectrum changes going through gates as Sean mentioned and its also very good for looking at a recovered clock coming out of an S/PDIF receiver. I can easily see the difference that different connectors and cables make in the recovered clock.
What it doesn't give you is a single number, you have to interpret the spectrum. Different types of spectrum that have the same "ps number" can sound very different, which is why I prefer to use this method rather than the direct time measurement. (well the real reason is that I have a good spectrum analyzer and I don't have a really good time domain jitter analyzer and very little chance of getting enough money to buy one!) With the mentioned legato converter you still have to go through the S/PDIF receiver in the DAC. You would be MUCH better off putting the guts of the legato in the DAC and running the DAC off its clock. You can still use the S/PDIF connection for the data since the recovered clock will not be used. Of course the DAC has to use an 11.2896 MHz MCLK. John S. -- JohnSwenson ------------------------------------------------------------------------ JohnSwenson's Profile: http://forums.slimdevices.com/member.php?userid=5974 View this thread: http://forums.slimdevices.com/showthread.php?t=71464 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
