I am using a logitech 4000 usb camera which has a built in microphpne.
(the microphone also use the usb port by which the camera is connected)
Now I want to test that this microphone works with my machine (I use redhat 7.3 platform).
I have , apart from this camera , a PCI sound card installed on this machine ; this soundcard
is recognized by the RH machine when booting , and this soundcard works fine.
Now I intend to use this usb microphone in my application , but before I want to test it with some other ready-made application. Does anybody know of such an application ?
and how do I know where the usbaudio device is (is it /usb/dsp1 , usb/dsp2 , or
something else ? the log of /var/log/messages which is produced by plugging the
camera is below ).
regards, sting
Aug 7 11:11:34 kernel: hub.c: USB new device connect on bus1/1, assigned device number 3
Aug 7 11:11:34 kernel: pwc Logitech QuickCam 4000 Pro USB webcam detected.
Aug 7 11:11:34 kernel: pwc Registered as /dev/video0.
Aug 7 11:11:35 kernel: usbaudio: device 3 audiocontrol interface 1 has 1 input and 0 output AudioStreaming interfaces
Aug 7 11:11:35 kernel: usbaudio: valid input sample rate 44100
Aug 7 11:11:35 kernel: usbaudio: device 3 interface 2 altsetting 1: format 0x00000010 sratelo 44100 sratehi 44100 attributes 0x00
Aug 7 11:11:35 kernel: usbaudio: valid input sample rate 22050
Aug 7 11:11:35 kernel: usbaudio: device 3 interface 2 altsetting 2: format 0x00000010 sratelo 22050 sratehi 22050 attributes 0x00
Aug 7 11:11:35 kernel: usbaudio: valid input sample rate 11025
Aug 7 11:11:35 kernel: usbaudio: device 3 interface 2 altsetting 3: format 0x00000010 sratelo 11025 sratehi 11025 attributes 0x00
Aug 7 11:11:35 kernel: usbaudio: valid input sample rate 8000
Aug 7 11:11:35 kernel: usbaudio: device 3 interface 2 altsetting 4: format 0x00000010 sratelo 8000 sratehi 8000 attributes 0x00
Aug 7 11:11:35 kernel: usbaudio: registered dsp 14,35
Aug 7 11:11:35 kernel: usbaudio: warning: found 1 of 0 logical channels.
Aug 7 11:11:35 kernel: usbaudio: assuming the channel found is the master channel (got a Philips camera?). Should be fine.
Aug 7 11:11:35 kernel: usbaudio: registered mixer 14,16
Aug 7 11:11:38 /etc/hotplug/usb.agent: Setup audio for USB product 46d/8b2/0
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