Topic: Digicheck channel status display Approximated s/f
I notice the value is fluctuating between 47.93 and 48.12 Khz when playing back dvd what that does that mean to audio, does that mean the original master clock is not accurate. Is it meant to do that?
I know it's crazy to compare to DCS verona says accuracy typically 0.1ppm, guaranteed less than 1ppm especially as it is ?3999!!!
So at 48khz the dcs will be 48000 +/- 0.048 Hz ?
And my DVD is 48000 +/- 100 Hz ???
So that is DCs verona at +/- 0.02ns clock stability at 48khz
and DVD at +/- 43ns clock stability?
So if I got a RME card with steadyclock that would fix the clock stability to +/- 2ns of whatever the clock that created the file?
DIGICheck allows to measure the real sample rate with an accuracy of ? 100 Hz. This is a very useful addition to the Sample Frequency display in the Settings dialog.
Most RME systems show (and measure) the sample frequency within a +/- 4% range, sufficient to detect the clock used when connecting other devices.
But if you want to check slow speed deviations from incompatible or defective equipment, or the behaviour when syncing several devices (especially when controlled by timecode SMPTE), the value in Approximated s/f gives a useful indication what's realy happening in the digital domain.