Author Topic: Unable to open sound device error  (Read 2251 times)

Offline watermusically

  • Shy artist
  • Posts: 2
  • Operating System: Windows 7
Unable to open sound device error
« on: January 22, 2019, 16:10:43 »

I am using WASAPI and this happens sometimes when I hit play or enter a note. Why? This is using OpenMPT

Offline Saga Musix

  • OpenMPT Developers
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  • Posts: 7,534
  • aka Jojo
    • Download music, samples, VST plugins: Saga Musix Website
  • Operating System: Windows 10 x64
Re: Unable to open sound device error
« Reply #1 on: January 22, 2019, 16:14:25 »
There are several reasons why this could be happening:
- Is the checkbox "Use device exclusively" enabled? If so, OpenMPT cannot output any sound if another application (such as your web browser) occupies the device.
- Is another application using the device exclusively (via WASAPI or WaveRT)? If so, well, that application has exclusive access and OpenMPT cannot use the device.
- Is the output format (number of channels and sample rate) compatible with the device? In particular enabling Quad output instead of Stereo can cause such an error.
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