No audio after Qt app is installed [SOLVED]

  • I've created a simple wav file streaming app. It is working fine within the development environment. Now I need to deploy it.

    I am using BitRock to deploy the app.

    BitRock seems to install the app on the test machine correctly. The app launches without complaints about missing DLLs, etc.

    When I attempt to cause the app to play a particular wav file it successfully connects to the sever, downloads the wav and begins playing the wav; visually it appears to be working fine. The problem is that no sound comes from the speakers.

    Note: I am attempting to deploy a debug build.

    Troubleshooting attempted:

    1. I guessed the app needed some plug in. Adding the following had no effect:

    Other details:
    Qt 5.4
    OS Win7/64bit
    MSVC 2012

    As of now I

  • Well, I consider those to be good, common-sense questions. I forgot to add what I did to verify that the target machine was capable of emitting sound.

    What I did to validate that the target machine was cable of emitting sound:

    1. I installed my player on two different machines. I encountered the same failure on both machines.

    2. I ran Microsoft's media player on both target machines. This player emitted sound through the target computers' speakers immediately.

    I conducted the following on only one of these machines

    1. I checked the volume mixer. All volume controls are set to max.

    pklemm "reported": the following solve his problem:

    bq. I had plabq. ced the dsengine.dll and qtmedia_audioengine.dll in the folder:
    <app dir>/plugins/mediaservice
    it needs to be:
    <app dir>/mediaservice

    I tried this. Didn't help.

    For now, I am going with <app dir>/mediaservice

  • Lifetime Qt Champion

    Can you start your application from a console setting QT_DEBUG_PLUGINS to 1 ? That should give you more information about what happens with your plugins

  • Lifetime Qt Champion

    Thanks for sharing your findings !

    You also have "here": a nicely illustrated wiki entry about Window's deployment that shows the folder structure.

Log in to reply

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.