root@root135:~# arecord -l **** List of CAPTURE Hardware Devices **** card 0: Generic [HD-Audio Generic], device 0: ALC662 rev3 Analog [ALC662 rev3 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Generic [HD-Audio Generic], device 2: ALC662 rev3 Alt Analog [ALC662 rev3 Alt Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: Camera [2K USB Camera], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 vim /usr/share/pulseaudio/alsa-mixer/profile-sets/default.conf 472 [Mapping multichannel-input] 473 device-strings = hw:%f,0 #这里的6根据你的能工作的capture 设备ID来定，如果不确定是哪个，可以都试试，如果都不行，基本就是没适配了 474 channel-map = left,right,rear-left,rear-right 475 exact-channels = false 476 fallback = yes 477 priority = 1 478 direction = input 479 paths-input = multichannel-input