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PC Audio not working in 4.2.18

Fred KE4Q
Fred KE4Q Member ✭✭
in SmartSDR for Windows

Removed all previous versions of smart SDR, DAX, and VSPs. Installed 4.2.18 with no problem. However, I notice that PC Audio is not working. I restart smart SDR and PC Audio works for about 15 secs and then stops working. All other apps on the computer seem to be ok. Just wondering if anyone else has experienced and can help me to identify problem. Thanks

Answers

  • KD0RC
    KD0RC Member, Super Elmer Moderator

    Hi Fred, it is working for me on my Win 10 laptop. Are you sure that you don't have the master volume (SmartSDR main window, top left) muted or turned down?

  • Fred KE4Q
    Fred KE4Q Member ✭✭

    Len, it works for about 15 to 20 secs before stopping. Nothing muted that I can see

  • KD0RC
    KD0RC Member, Super Elmer Moderator

    Hi Fred, you might want to submit a help desk ticket.

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    edited April 29

    PC Audio is separate from DAX. Make sure you windows default sound devices are correct. If you still have an issue, please open a support ticket.

    https://helpdesk.flexradio.com/hc/en-us/articles/360033107712-Debugging-Issues-with-PC-AUDIO-Not-Working-Properly

  • Stan VA7NF
    Stan VA7NF Member ✭✭✭

    Just installed 4.2 on an older (slow) PC and ran it both locally and remotely.

    Audio ran normally BUT:

    Around every 2 min there was a 5 second span with no audio then all audio stopped only "fixed" by restarting SmartSDR. No transmit made during this time.

  • David Decoons, wo2x
    David Decoons, wo2x Member, Super Elmer Moderator

    have you shut down the radio and removed DC power after upgrade as per the release notes?

    Next step is you should have backed up profiles. Do a factory reset and test PC audio before loading profiles. If working, load your profiles and test again.

  • John KB4DU
    John KB4DU Member ✭✭✭✭

    What is the configuration of the PC? is it running other software? What does the network condition indicate (green bars)? This may be a PC overload.

  • Gord-VA7GP
    Gord-VA7GP Member ✭✭✭

    My PC has two different audio devices, and always seems to choose the wrong one.

    The first / preferred / needed is the on-the-motherboard (Realtek Audio), which actually goes through a mixer to my shack-speakers.

    The second / undesired / always-chosen is my monitor, which has built-in speakers (disabled). When Win 11 chooses this device, I hear nothing, yet SmartSDR shows "PC Audio" is blue-selected. Suddenly, I remember, change the Win 11 audio-device, and SmartSDR works again.

    So - you may find that Windows is subverting your PC Audio. Perhaps give that a look…

  • WK1O
    WK1O Member ✭✭

    Looking for help with DAX Audio, V 4.2.2 on my new 8600

    RX and TX streams show blue in the DAX panel but there no DAX audio. I uninstalled old DAX drivers

    What else should be checked here to make it work?

    Thank you

    Alex, WK1O

    image.png
  • KD0RC
    KD0RC Member, Super Elmer Moderator

    It looks like DAX is working. Do you have the correct DAX input/output selected in the program that uses DAX audio? The DAX audio streams changed names, so you need to reset them to the new values. For example, here is the audio setting for VARAHF:

    image.png

    In Windows Settings, you should see these input devices:

    image.png

    Notice that all the "Reserved" device names no longer appear. It is much easier now to find the device that you need.

  • WK1O
    WK1O Member ✭✭

    Len,

    Thank you. I am trying to set up the SliceMaster with the new 8600 and WSJT-X. SliceMaster puts out the message that "Audio Channel is not enabled in DAX control panel, DAX=1, Slice A."

    WSJT works when I launch is separately rather than from the SliceMaster. I kind of assumed that if I do not see the Audio line moving in the RX streams of the SmartSDR DAX, then this is where the issue is. But interestingly, when WSJT is working and decoding, there is still no indications of the DAX audio in the SmartSDR DAC panel. How should it work? Should I see the audio lines moving there? If not, what is it for?

    Thanks,

    Alex

  • WK1O
    WK1O Member ✭✭

    It looks like this is the SliceMaster issue that is not aware of the new DAX drivers.

    Alex

  • KD0RC
    KD0RC Member, Super Elmer Moderator

    Hi Alex, I don't think that SliceMaster works with 4.2.

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