The "click on touch" sound is produced through the system speaker only, not the sound card or its speakers. There are some possibilities for getting sound through the sound card/speakers:

• Many modern sound cards have software options to allow the system sounds to be directed through the sound card. Consult the documentation for your sound card or PC.
• Some sound cards allow a wired connection of the system sounds to the sound card. Consult the documentation for your sound card or PC.
• If you are designing the application, you can have button presses play the sound of your choice by way of a .wav or comparable file format.