我尝试了各种方法，遵循了建议。但都无济于事。我无法分配和找到连接到 USB 声卡的音频扬声器。请帮忙，我不知道该怎么做。
预先感谢
lsusb 的输出
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 007: ID 05e3:0718 Genesys Logic, Inc. IDE/SATA Adapter
Bus 001 Device 008: ID 0d8c:0014 C-Media Electronics, Inc.
Bus 001 Device 011: ID 258a:0001
Bus 001 Device 010: ID 1c4f:0048 SiGma Micro
Bus 001 Device 009: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 003: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 002: ID 0bda:8152 Realtek Semiconductor Corp.
Bus 001 Device 012: ID 1d50:6089 OpenMoko, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
声卡类型：
T: Bus=01 Lev=02 Prnt=03 Port=02 Cnt=02 Dev#= 8 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0d8c ProdID=0014 Rev=01.00
S: Manufacturer=C-Media Electronics Inc.
S: Product=USB Audio Device
C: #Ifs= 4 Cfg#= 1 Atr=80 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio
I: If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
I: If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
I: If#= 3 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
rpj@rpj-T11:~$ pacmd list-cards | grep output\:
没有 PulseAudio 守护程序正在运行，或者没有作为会话守护程序运行。rpj@rpj-T11:~$