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    Unsolved Ubuntu Server - Virtual Sound Card

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    • Deleted74295D
      Deleted74295 Banned @thwr
      last edited by

      @thwr said in Ubuntu Server - Virtual Sound Card:

      @Breffni-Potter said in Ubuntu Server - Virtual Sound Card:

      I gave up on that linux VM so can't test it but I tried many things under the sun involving ALSA and PulseAudio, I had a real Linux brain box helping me out with it and neither of us could get it working after a week of trying different things out.

      So that's not urgent at all. You made me curious, so maybe I'll take a look into it during the next few days 😉

      Oh it was urgent 3 months ago 🙂

      The fix was to bite the bullet and pay triple the cost for a Windows VM to do it.

      1 Reply Last reply Reply Quote 2
      • thwrT
        thwr
        last edited by

        Hehe. Is Ubuntu Server 16.04 ok for you?

        Deleted74295D 1 Reply Last reply Reply Quote 0
        • Deleted74295D
          Deleted74295 Banned @thwr
          last edited by

          @thwr said in Ubuntu Server - Virtual Sound Card:

          Hehe. Is Ubuntu Server 16.04 ok for you?

          Sure, whenever really, no rush.

          1 Reply Last reply Reply Quote 0
          • chrisnbrooksC
            chrisnbrooks @thwr
            last edited by

            @thwr said in Ubuntu Server - Virtual Sound Card:
            ...

            https://ubuntuforums.org/showthread.php?t=2119648

            Good read! Wish I still had my blade in Chicago so I could test this out just for gits and shiggles.
            Maybe finally time to renew that contract ... this time sans hosting clients.

            thwrT 1 Reply Last reply Reply Quote 1
            • thwrT
              thwr @chrisnbrooks
              last edited by

              @chrisnbrooks said in Ubuntu Server - Virtual Sound Card:

              @thwr said in Ubuntu Server - Virtual Sound Card:
              ...

              https://ubuntuforums.org/showthread.php?t=2119648

              Good read! Wish I still had my blade in Chicago so I could test this out just for gits and shiggles.
              Maybe finally time to renew that contract ... this time sans hosting clients.

              Just create a VM with no sound hardware 😉

              chrisnbrooksC 1 Reply Last reply Reply Quote 0
              • chrisnbrooksC
                chrisnbrooks @thwr
                last edited by

                @thwr said in Ubuntu Server - Virtual Sound Card:

                @chrisnbrooks said in Ubuntu Server - Virtual Sound Card:

                @thwr said in Ubuntu Server - Virtual Sound Card:
                ...
                Maybe finally time to renew that contract ... this time sans hosting clients.

                Just create a VM with no sound hardware 😉

                Hah! Nooo... Just take my money!!!

                1 Reply Last reply Reply Quote 1
                • thwrT
                  thwr
                  last edited by thwr

                  Ok, got it. It's actually pretty simple. Tried this in a fresh new Ubuntu 16.04.1 VM on VirtualBox. The VM does not have sound hardware (disabled in VirtualBox).
                  I had some problems with the recorded file, there was just white noise. Turned out something went wrong when I tried to record the output using arecord and pipe that to lame to get a MP3. Switched to WAV instead.

                  Preparations:

                  sudo modprobe snd-aloop
sudo apt-get install alsa

                  Check devices:

                  tw@ubuntu-snddummy:~$ sudo aplay -l
**** List of PLAYBACK Hardware Devices ****
Home directory not accessible: Permission denied
card 0: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
  Subdevices: 7/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 0: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
tw@ubuntu-snddummy:~$

                  Play something

                  sudo aplay -D hw:0,0,0 sample.wav
Playing WAVE 'sample.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo

                  Record (different shell)

                  sudo arecord -D hw:0,1,0 -f cd record.wav

                  PS: Did everything as root to avoid any permission issues.

                  Source:
                  http://www.alsa-project.org/main/index.php/Matrix:Module-aloop

                  1 Reply Last reply Reply Quote 3
                  • Deleted74295D
                    Deleted74295 Banned
                    last edited by

                    Nice work, really good find.

                    Will remember to try this in the future.

                    1 Reply Last reply Reply Quote 1
                    • thwrT
                      thwr
                      last edited by

                      Thanks, I was just curious 😉 Please report back if that works for you.

                      1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller
                        last edited by

                        This got way more popular than I had been expecting it to be!

                        thwrT 1 Reply Last reply Reply Quote 0
                        • thwrT
                          thwr @scottalanmiller
                          last edited by

                          @scottalanmiller said in Ubuntu Server - Virtual Sound Card:

                          This got way more popular than I had been expecting it to be!

                          Now we just need to find use-cases for this 😉

                          scottalanmillerS travisdh1T 2 Replies Last reply Reply Quote 2
                          • scottalanmillerS
                            scottalanmiller @thwr
                            last edited by

                            @thwr said in Ubuntu Server - Virtual Sound Card:

                            @scottalanmiller said in Ubuntu Server - Virtual Sound Card:

                            This got way more popular than I had been expecting it to be!

                            Now we just need to find use-cases for this 😉

                            That's the bigger challenge 😉

                            1 Reply Last reply Reply Quote 2
                            • travisdh1T
                              travisdh1 @thwr
                              last edited by

                              @thwr said in Ubuntu Server - Virtual Sound Card:

                              @scottalanmiller said in Ubuntu Server - Virtual Sound Card:

                              This got way more popular than I had been expecting it to be!

                              Now we just need to find use-cases for this 😉

                              Back in the late 90s, a group of ~50 engineers and FEA people would have loved to have that available. We could do 3D remotely, but sound without an audio card, not so much.

                              1 Reply Last reply Reply Quote 1
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