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如何让我的麦克风支持流媒体播放？

tag-icon • tag-icon sound webcam vlc microphone streaming
如何让我的麦克风支持流媒体播放？

我能够从我的计算机进行流式传输，并使用以下命令在本地 vlc 上观看流：

cvlc v4l2:///dev/video0 :v4l2-standard= :inputlave=alsa://hw:0,0 :live-caching=300 :sout="#transcode{vcodec=WMV2,vb=800,scale=1,acodec=wma2,ab=128,channels=2,samplerate=44100}:http{dst=:8080/stream.wmv}"

问题是我听不到声音。声音会通过我的网络摄像头传出来。

我已经完成 aplay --list-devices 但在那里没有看到我的网络摄像头（usb）：

michaeljwjr@michaeljwjr-desk:~$ aplay --list-devices
**** List of PLAYBACK Hardware Devices ****
card 0: MID [HDA Intel MID], device 0: ALC889 Analog [ALC889 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: MID [HDA Intel MID], device 1: ALC889 Digital [ALC889 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

但是当我执行 lsusb 时，我确实看到了我的网络摄像头：总线 001 设备 002：ID 045e:0766 Microsoft Corp. LifeCam VX-800

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