Why does the volume control in my application not change the volume of the Overture 192 card?
Most well written Windows audio applications such as Windows Media Player or iTunes use the Wave volume control to control the volume of their output as the Master Volume control should really only be changed by the user, not by applications. However, some applications do use the Master Volume control and because the Overture 192 is a digital output card with both analogue and S/PDIF digital outputs, Windows treats the card as a “digital” output and therefore does not allow the Windows Master Volume control to change the volume of the output (as digital S/PDIF outputs must be at a fixed volume). However, as the Overture 192 is a “wave” device, the Windows Wave volume control can be used to control the volume of the Overture 192 output. This effectively controls the volume of the sound signal going into the Overture 192 drivers from applications that play sound. You can access the Wave volume control by right-clicking with your mouse on the speaker icon in the system tray and selecting
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