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Thread: 20.04: USB Turntable - What do I need to set to...

  1. #1
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    20.04: USB Turntable - What do I need to set to...

    I've plugged in a USB turntable and dmesg shows that it was configured and ready to use. What else do I need to do to get it to come out of my speakers and to work with Audacity?

    John

  2. #2
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    Re: 20.04: USB Turntable - What do I need to set to...

    I believe that this info from dmesg shows that it is working:

    [51728.616591] usb 3-1: new full-speed USB device number 2 using xhci_hcd
    [51728.767487] usb 3-1: New USB device found, idVendor=08bb, idProduct=2900, bcdDevice= 1.00
    [51728.767490] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
    [51728.767492] usb 3-1: Product: USB Audio CODEC
    [51728.767494] usb 3-1: Manufacturer: Burr-Brown from TI
    [51728.772217] input: Burr-Brown from TI USB Audio CODEC as /devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.3/0003:08BB:2900.0005/input/input31
    [51728.829107] hid-generic 0003:08BB:2900.0005: input,hidraw4: USB HID v1.00 Device [Burr-Brown from TI USB Audio CODEC ] on usb-0000:00:14.0-1/input3
    [51728.984953] mc: Linux media interface: v0.10
    [51729.022948] usbcore: registered new interface driver snd-usb-audio

    I was able to make it work on my Win10 box, but I want to use it on this Ubuntu system. Here is the dmesg info showing what happened when I started Audacity.

    [51787.386709] audit: type=1400 audit(1590582959.600:6002): apparmor="DENIED" operation="open" profile="snap.audacity.audacity" name="/dev/snd/controlC0" pid=13831 comm="audacity" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
    [51787.386713] audit: type=1400 audit(1590582959.600:6003): apparmor="DENIED" operation="open" profile="snap.audacity.audacity" name="/dev/snd/controlC1" pid=13831 comm="audacity" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
    [52390.540013] usb 3-1: USB disconnect, device number 2
    [52391.543455] usb 3-1: timeout: still 3 active urbs on EP #2

    I know this isn't the Audacity forum and I don't expect you to get it to work, but if I can get the music to come out of my speakers, then I should be close to having Audacity working.

    John

  3. #3
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    Re: 20.04: USB Turntable - What do I need to set to...

    Just select the source in Audacity. It should be some generic USB audio device for the cheap ones and maybe a brand name will be in the name for the more expensives ones but in any there will be some reference to USB audio.

  4. #4
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    Re: 20.04: USB Turntable - What do I need to set to...

    Looks to me like you installed audacity as a snap. Check whether there are any "Plugs" on audacity unconnected with 'snap connections --all'. Then you can try to connect them using 'snap connect audacity:plugname :slotname'. Or you can remove the snap and use the .deb from the repositories ('sudo apt install audacity') which might be slightly older but doesn't come with the constraints under which snaps must work.

    Holger

  5. #5
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    Re: 20.04: USB Turntable - What do I need to set to...

    Quote Originally Posted by CelticWarrior View Post
    Just select the source in Audacity. It should be some generic USB audio device for the cheap ones and maybe a brand name will be in the name for the more expensives ones but in any there will be some reference to USB audio.
    That was the first thing I looked at. It only has default, no options. Same goes for output.

    John

  6. #6
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    Re: 20.04: USB Turntable - What do I need to set to...

    Quote Originally Posted by Holger_Gehrke View Post
    Looks to me like you installed audacity as a snap. Check whether there are any "Plugs" on audacity unconnected with 'snap connections --all'. Then you can try to connect them using 'snap connect audacitylugname :slotname'. Or you can remove the snap and use the .deb from the repositories ('sudo apt install audacity') which might be slightly older but doesn't come with the constraints under which snaps must work.

    Holger
    Yep, it was installed as snap. I used Ubuntu Software app to do the install. Here is what I found, but can't tell if anything is unconnected.

    john@john-OptiPlex-7010:~$ snap connections --all | grep audacity
    audio-playback audacity:audio-playback :audio-playback -
    audio-record audacity:audio-record - -
    content[gtk-2-engines] audacity:gtk-2-engines gtk2-common-themes:gtk-2-engines -
    content[gtk-2-themes] audacity:gtk-2-themes gtk-common-themes:gtk-2-themes -
    content[icon-themes] audacity:icon-themes gtk-common-themes:icon-themes -
    content[sound-themes] audacity:sound-themes gtk-common-themes:sound-themes -
    desktop audacity:desktop :desktop -
    desktop-legacy audacity:desktop-legacy :desktop-legacy -
    home audacity:home :home -
    pulseaudio audacityulseaudio ulseaudio -
    removable-media audacity:removable-media - -
    unity7 audacity:unity7 :unity7 -
    wayland audacity:wayland :wayland -
    x11 audacity11 11


    I am amazed that remember grep from a Unix class in the late 80's.

    Can you spot anything?

    John

  7. #7
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    Re: 20.04: USB Turntable - What do I need to set to...

    Please use code tags to preserve format when posting. Easy to do with Go Advanced then click "#" and paste inside.

    Yes, grep is still used as are so many other Unix commands.

    Now, regarding Audacity, if you want to keep the snap, check its permissions. The GUI way is how you installed. Snaps show an additional "Permissions" button after the installation finishes. You can search for it again and click there to enable access to peripherals and others. Such permissions aren't enabled by default in snaps.
    Or you can uninstall the snap version and install the one from the traditional repository.

  8. #8
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    Re: 20.04: USB Turntable - What do I need to set to...

    OMG I really missed this Ubuntu

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