Hi, I'll also add that this is a DAC hardware issue.
Basically when switching to different sample rates the DAC has to resync the i2s clock signal with the source, if the DAC can't do this without making nasty jitter noise it's the sign of a poorly designed DAC.
If your DAC has a USB interface try that, as USB is a asynchronous data interface jitter issues are less likely. Alternatively you could enable resampling so that the DAC always runs at the same sample rate.
Basically when switching to different sample rates the DAC has to resync the i2s clock signal with the source, if the DAC can't do this without making nasty jitter noise it's the sign of a poorly designed DAC.
If your DAC has a USB interface try that, as USB is a asynchronous data interface jitter issues are less likely. Alternatively you could enable resampling so that the DAC always runs at the same sample rate.