@Fons: I remember you were measuring preamps and AD/DA behaviour not too
long ago (some RME card?!).
Can one reproduce this using jnoisemeter or does one need special
Setting the output-volume to -0db, `jnoise` could be used to calibrate
the input levels, even though it's bad practice to rely on the device
itself, I suppose it'd work to measure the noise-floor and S/N, right?
...and `jaaa` will do the frequency plot... I love your tools!