marco@b-52:~$ cat /proc/asound/cards
0 [Camera ]: USB-Audio - Camera Camera at usb-0000:00:02.0-4, full speed
1 [U0x46d0x991 ]: USB-Audio - USB Device 0x46d:0x991 USB Device 0x46d:0x991 at usb-0000:00:02.1-9, high speed
2 [NVidia ]: HDA-Intel - HDA NVidia HDA NVidia at 0xfbff0000 irq 19
this is my situation now:
marco@b-52:~$ cat /proc/asound/cards
Camera at usb-0000:00:02.0-4, full speed
USB Device 0x46d:0x991 at usb-0000:00:02.1-9, high speed
HDA NVidia at 0xfbff0000 irq 19
0 [Camera ]: USB-Audio - Camera
1 [U0x46d0x991 ]: USB-Audio - USB Device 0x46d:0x991
2 [NVidia ]: HDA-Intel - HDA NVidia