USB DAC troubleshooting

 * could not play until 30% volume

https://wiki.archlinux.org/title/PipeWire

No sound from USB DAC until 30% volume

* restarting pipewire

systemctl --user restart pipewire

* dac drop connection(symptom)

pipewire[1920]: spa.alsa: front:3: snd_pcm_drop No such device
 

usb audio stutter with sample rate of 48000Hz

• run pavucontrol
• removing alternate sampling rate from conf
• connect usb audio device on host port not hub
   

 https://unix.stackexchange.com/questions/724815/usb-audio-devices-not-outputting-audio-unless-leaving-pulseaudio-control-applet