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Problema com o som ALSA e Pulseaudio

Problema de sound crackling no desktop

Solução para o problema de sound crackling na saída de áudio line-out do desktop, codec Realtek ALC892

adicionar a linha abaixo:

options snd-hda-intel model=dell-headset-multi

no arquivo:

/etc/modprobe.d/alsa-base.conf

e reiniciar o computador.

fonte:

https://askubuntu.com/questions/1258583/install-realtek-audio-drivers-in-ubuntu-20-04-intel-nuc-nuc10i7fnh

https://community.intel.com/t5/Intel-NUCs/NUC10i5-headphones-jack-audio-not-working-with-Ubuntu-20-04/td-p/643946