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In the terminal, type xed admin:/etc/pulse/daemon.conf (this assumes Mint 19.x. For Mint ⇐ 18.3 use gksudo xed /etc/pulse/daemon.conf.) Find the section that looks like this: Code: Select all ; default-sample-format = s16le ; default-sample-rate = 44100 and change it to this: Code: Select all default-sample-format = s24le default-sample-rate = 48000 (or default-sample-rate = 96000 or default-sample-rate = 192000 depending on what your system can support.) Then save the file and in the terminal type pulseaudio -k. Done. EDIT: I should add, after making the change, you can see what pulseaudio is using with pacmd list-sinks | grep “sample spec” It'll show one result for each audio device.