Unable to open sound device error

[watermusically]

https://i.imgur.com/px6sFGi.png



I am using WASAPI and this happens sometimes when I hit play or enter a note. Why? This is using OpenMPT 1.28.02.00

[Saga Musix]

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.