I recently bought an external dac (cambridge audio dacmagic plus) and downloaded some 24bit 192khz sound files which played fine, but the dac showed me that the input sound stream was 44.1khz only. So i figured downsampling was happening at some point. I tried changing the pulseaudios default-sample-rate to 192khz which worked according to my dac's leds, but now the same led is always lit.

Does this mean that all sound is getting unnecessarily upsampled? Is there a way to set it up so, that it would play both 44.1 and 192 files as they are without any up/downsampling?