raspi-configのやり方見当たらず...
あと、これとかですか？

sudo nano /usr/share/alsa/alsa.conf
-------------------------------------
★変更後
#
# ALSA library configuration file
#
# pre-load the configuration files
@hooks [
{
func load
files [
{
@func concat
strings [
{ @func datadir }
"/alsa.conf.d/"
]
}
"/etc/asound.conf"
# "~/.asoundrc"
]
errors false
}
]
-------------------------------------
sudo reboot