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    USB-Microphone TP6920

    Scheduled Pinned Locked Moved Hardware
    usbmicrophone
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    • strawberry 3.141S Offline
      strawberry 3.141 Project Sponsor Module Developer
      last edited by strawberry 3.141

      Hello guys,

      I bought myself an usb-microphone (TP6920). On my Laptop (Ubuntu 16.04) I can use it plug’n’play, but it’s not getting recognised on the Raspberry Pi 3.

      Any ideas what i can try?

      Thanks in advance

      Please create a github issue if you need help, so I can keep track

      1 Reply Last reply Reply Quote 0
      • KirAsh4K Offline
        KirAsh4 Moderator
        last edited by

        I have no experience with this specific microphone (or any other for that matter), but I would recommend starting to compare what the systems report when you plug them in. On your laptop, look at the systems log (often that’s '/var/log/messages' but may be different on ubuntu), plug the microphone in and watch the messages. Also check what 'lsusb' reports.

        now do the same on the raspberry pi, see what the system messages are when you plug in the microphone, and also check what 'lsusb' reports. If you discover it’s a driver issue, then you need to see what driver your laptop is using for the microphone, and see if it exists on the raspberry pi.

        Another possibility is that the rpi might not have the master audio mixer enabling the microphone. Unfortunately that’s more involved and something you’ll have to research on Google perhaps. Each hardware is different, but I’m sure others out there have purchased the same hardware.

        A Life? Cool! Where can I download one of those from?

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        • strawberry 3.141S Offline
          strawberry 3.141 Project Sponsor Module Developer
          last edited by strawberry 3.141

          Raspberry Pi

          Syslog
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.370474] usb 1-1.4: new full-speed USB device number 7 using dwc_otg
          Jun 8 21:13:10 raspberrypi rsyslogd-2007: action ‘action 17’ suspended, next retry is Wed Jun 8 21:13:40 2016 [try http://www.rsyslog.com/e/2007 ]
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.500496] usb 1-1.4: New USB device found, idVendor=1130, idProduct=6920
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.500521] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.500534] usb 1-1.4: Product: TP6920
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.500546] usb 1-1.4: Manufacturer: TP6920
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.500558] usb 1-1.4: SerialNumber: 0621
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.504859] snd-usb-audio 1-1.4:1.0: cannot find the slot for index 0 (range 0-0), error: -16
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.504882] usb 1-1.4: cannot create card instance 0
          Jun 8 21:13:10 raspberrypi kernel: [ 2437.504911] snd-usb-audio: probe of 1-1.4:1.0 failed with error -16
          Jun 8 21:13:10 raspberrypi systemd-udevd[1238]: failed to execute ‘/lib/udev/mtp-probe’ ‘mtp-probe /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4 1 7’: No such file or directory

          looks like i probably messed up a config

          i followed a guide and changed

          options snd-usb-audio index=-2

          to

          options snd-usb-audio index=0

          Please create a github issue if you need help, so I can keep track

          1 Reply Last reply Reply Quote 0
          • KirAsh4K Offline
            KirAsh4 Moderator
            last edited by

            Maybe. Sometimes it’s worth simply trying something before you start changing things. :) More often than not it will work without modifying anything.

            A Life? Cool! Where can I download one of those from?

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            • strawberry 3.141S Offline
              strawberry 3.141 Project Sponsor Module Developer
              last edited by

              I reseted all my config changes

              the problem why I changed it was because I couldn’t record with arecord test.wav.
              So i thought the mic is not working, but it’s not the default mic. With arecord -D plughw:1,0 test.wav its’s working now. Thanks

              Any ideas how to change it to the default microphone?

              Please create a github issue if you need help, so I can keep track

              1 Reply Last reply Reply Quote 0
              • KirAsh4K Offline
                KirAsh4 Moderator
                last edited by

                Unfortunately, no. My recommendation is to find a raspberry forum, or search Google. Changing something to a default isn’t specific to that one microphone, it probably applies to many others. Might be an easy thing to fix.

                A Life? Cool! Where can I download one of those from?

                1 Reply Last reply Reply Quote 0
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