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#217 DAC not detected by APO

1.x
open
nobody
None
2022-07-14
2022-07-10
No

APO does not recognize recently added Fiio USB DAC. APO does, however, recognize and activate all other selected playback devices. The software download for the DAC is in the program files for Windows 10. How to activate?

Related

Tickets: #217

Discussion

  • Peter Verbeek

    Peter Verbeek - 2022-07-11

    Have you already installed Equalizer APO on the Fiio in the Configurator? By default it's only active (installed as the Configurator says) on the default speakers and microphone devices.

     
    • Thomas Piskulic

      Thomas Piskulic - 2022-07-12

      Thank you, Peter, for answering. The APO Configurator list of playback
      devices does not include the Fiio. After installing the Fiio and finding
      it in the program files, I then reinstalled the APO to hopefully ensure
      that the Configurator would now include it. It did not. I had a previous
      Fiio DAC with bluetooth options. Although a year apart both devices
      downloaded the same software version from the Fiio download page. The
      first Fiio device did show up in the Configurator and the equalizer
      worked to perfection. I removed the previous device from the bluetooth
      list hopefully clearing it from any device conflict with the new Fiio DAC.
      I sadly collect IEMs and because the sound spectrum of every IEM is
      different, I have found an equalizer very helpful. Any useful advice?

      On Mon, Jul 11, 2022 at 1:32 AM Peter Verbeek peverbeek@users.sourceforge.net wrote:

      Have you already installed Equalizer APO on the Fiio in the Configurator?
      By default it's only active (installed as the Configurator says) on the
      default speakers and microphone devices.


      Status: open
      Milestone: 1.x
      Created: Sun Jul 10, 2022 04:15 AM UTC by Thomas Piskulic
      Last Updated: Sun Jul 10, 2022 04:15 AM UTC
      Owner: nobody

      APO does not recognize recently added Fiio USB DAC. APO does, however,
      recognize and activate all other selected playback devices. The software
      download for the DAC is in the program files for Windows 10. How to
      activate?


      Sent from sourceforge.net because you indicated interest in
      https://sourceforge.net/p/equalizerapo/tickets/217/

      To unsubscribe from further messages, please visit
      https://sourceforge.net/auth/subscriptions/

       

      Related

      Tickets: #217

  • Peter Verbeek

    Peter Verbeek - 2022-07-12

    It could for some reason that the Fiio DAC uses ASIO, a Windows audio technique that ensures very tiny latencies but an APO (Audio Processing Object) like Equalizer APO isn't possible. Another issue might be similar if this DAC uses WASAPI exclusive mode. This is a nice mode but again no APO.

    Also check out the troubleshooting wiki on the audio control panel of a device. Perhaps it doesn't show in the Configurator until the proper checkboxes are set on this panel.

     
    • Etienne Dechamps

      It could for some reason that the Fiio DAC uses ASIO

      I would be very surprised if a FiiO DAC only supported ASIO and did not show up as a standard Windows audio device as well. That's almost certainly not working as designed.

      Another issue might be similar if this DAC uses WASAPI exclusive mode

      An audio device cannot by itself "use WASAPI exclusive mode". Which mode to use is a decision made by the application, not the audio hardware/driver.

      Basically: if an audio device shows up in the Windows audio control panel settings, then it should show up in the Equalizer APO Configurator. If that's not the case, then it's likely an Equalizer APO bug.

      If the audio device does not show up in the Windows audio settings, then that's not an usable audio device and the problem is bigger than just EAPO - the setup is just fundamentally broken. But I think OP's would have noticed if that was the case?

      I note that the OP mentioned Bluetooth? This might be another case of the new Windows Bluetooth audio stack confusing EAPO.

       
      • Peter Verbeek

        Peter Verbeek - 2022-07-12

        Thanks (again) for the needed corrections.

        it's likely an Equalizer APO bug

        Could be but Equalizer APO just retrieves a list of audio devices, either by the Windows core audio API (mmdevice api) or through the Windows registry which gets you basically the same list. But states of devices like "DEVICE_STATE_UNPLUGGED" may be filtered out by the Configurator programming code.

         
        • Thomas Piskulic

          Thomas Piskulic - 2022-07-12

          Thank you all who contributed. The problem is apparently solved. I
          temporarily disabled all the universal serial bus controllers and then
          re-installed both the APO and the Fiio driver. And voila! Fiio shows up
          on the Configurator as Default(Speakers - Fiio Q Series).
          Everything responsive so far. Thanks again.

          On Tue, Jul 12, 2022 at 10:33 AM Peter Verbeek peverbeek@users.sourceforge.net wrote:

          Thanks (again) for the needed corrections.

          it's likely an Equalizer APO bug

          Could be but Equalizer APO just retrieves a list of audio devices, either
          by the Windows core audio API (mmdevice api) or through the Windows
          registry which gets you basically the same list. But states of devices like
          "DEVICE_STATE_UNPLUGGED" may be filtered out by the Configurator
          programming code.


          Status: open
          Milestone: 1.x
          Created: Sun Jul 10, 2022 04:15 AM UTC by Thomas Piskulic
          Last Updated: Tue Jul 12, 2022 12:46 PM UTC
          Owner: nobody

          APO does not recognize recently added Fiio USB DAC. APO does, however,
          recognize and activate all other selected playback devices. The software
          download for the DAC is in the program files for Windows 10. How to
          activate?


          Sent from sourceforge.net because you indicated interest in
          https://sourceforge.net/p/equalizerapo/tickets/217/

          To unsubscribe from further messages, please visit
          https://sourceforge.net/auth/subscriptions/

           

          Related

          Tickets: #217

  • Peter Verbeek

    Peter Verbeek - 2022-07-13

    That's good to hear. Do you think that a new version of the audio driver for the Fiio was installed?

     
    • Thomas Piskulic

      Thomas Piskulic - 2022-07-14

      Peter, thanks for asking. I had uninstalled the original Fiio driver, then
      disabled the relevant USB controllers. Then installed the "new" driver
      which was identical to the old. Something was tweaked when the USB
      controllers were again enabled. Do I know what happened and am I
      disappointed with the results? No. Back to fine tuning the Harman Curve
      on the IEMs which is like a daily carburetor adjustment on your favorite
      vintage V-8.

      Thanks again

      On Wed, Jul 13, 2022 at 12:26 AM Peter Verbeek peverbeek@users.sourceforge.net wrote:

      That's good to hear. Do you think that a new version of the audio driver
      for the Fiio was installed?


      Status: open
      Milestone: 1.x
      Created: Sun Jul 10, 2022 04:15 AM UTC by Thomas Piskulic
      Last Updated: Tue Jul 12, 2022 05:33 PM UTC
      Owner: nobody

      APO does not recognize recently added Fiio USB DAC. APO does, however,
      recognize and activate all other selected playback devices. The software
      download for the DAC is in the program files for Windows 10. How to
      activate?


      Sent from sourceforge.net because you indicated interest in
      https://sourceforge.net/p/equalizerapo/tickets/217/

      To unsubscribe from further messages, please visit
      https://sourceforge.net/auth/subscriptions/

       

      Related

      Tickets: #217

      • Peter Verbeek

        Peter Verbeek - 2022-07-14

        Thanks, Thomas, for the detailed info. I can use it to help others. Good luck finetuning!

         

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