我的是板子是Raspberry Zero W
sudo vim /boot/config.txt
dtoverlay=hifiberry-dac
然后aplay -l检测 声卡是否加载了,你要加载你自己的型号。我的是hifiberry-dac的。可以看到card-1已经加载了hifiberry
**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
Subdevices: 7/7
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC HiFi pcm5102a-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
加载之后，开始配置声音配置。
sudo vim ~/.asoundrc
根据上面的card序号改配置
pcm.!default {
type hw card 0
}
ctl.!default {
type hw card 0
}
ok， done