Audio Playback Issue in UWP Kiosk Mode: Crackling Sound on Application Startup

Question

I'm developing a UWP application intended to run in Kiosk Mode. One of the requirements is to play an audio file on startup, which I've implemented in the OnLaunch method. When I manually start the application, everything works fine. However, when the PC starts in Kiosk mode, there's a crackling effect or sound distortion at the beginning of the application.

I've noticed that adding a delay of around 15 seconds resolves the issue, but I don't consider this an optimal solution. My assumption is that Windows needs time to settle down after startup, and perhaps the audio drivers are not fully initialized yet, though I'm not entirely certain.

Any insights or alternative approaches to resolve this issue would be greatly appreciated. Thank you!

Answer 1

Hello,

Welcome to Microsoft Q&A!

Based on the discussion on SO, this behavior only happens on kiosk mode. This reason for this might be that the audio drivers are not initialized completely.

We are not able to do something from the code side. So adding a delay of 15 seconds before playing the content might be the workaround.

Thank you.

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Answer 2

Hello Hardik Rathod

Are your audio drivers up to date ?

otherwise -> update on the manufacturer's page of your sound card or device

What else comes to mind.... Maybe you should try it with a different audio format.