RAOP stands for Remote Audio Output Protocol and is the key to enabling Airplay on Linux
https://medium.com/@ed.sav/enabling-airplay-from-linux-1f6358c9ca1c
this post was submitted on 30 Jun 2025
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Btw, i have a USB-C DAC that has it's comfortable level on 5%. Any way to change that and increase fidelity of audio steps?
Its your DE that controls the volume steps, if that's what you're asking. On Ubuntu its shift + volume.
If it's a pure DAC, it's default output will likely be between 1 to 2 Volts RMS. If your listening on iems or ~30 Ohm headphones that is gonna be crazy loud. It seems like you are using digital audio control to manage this (i.e., the audio level in your DE), which is possible, but certainly not ideal. It also is kinda bad for the audio quality, as you are digitally remixing it, and if you ever switch to high impedance headphones (or already have), the output current will be sub-ideal.
If I'm assessing your situation correctly, then this is quite easy to solve though. You just need a preamp! This will give a nice knob to control audio with much more precision and finesse. I know that both JDS Labs and Schiit Audio offer headphone amps with built in preamps in the USA. I can highly recommend the JDS Labs Atom Amp 2. In Europe your a little more limited, but FiiO has some nice options I think.
Of course none of this is necessary if you don't want audiophile levels of quality, but it would boost the audio quality (presuming your DAC doesn't have a proper preamp), and would certainly give you a tactile, wonderful knob.
I can certainly attest that my HD600s sound quite a bit better out of a JDS Labs Atom Amp 2 than out of just my DAC or—god forbid—my Mobo audio... They sound even better out of my vintage 100W Onkyo amp, of course, but really not by much. I am really impressed by the Atom Amp. I initially just bought it for travelling, but it has now basically become my main amp lol.
Okay, ramble over.
PipeWire my beloved 😍