Please follow the below mentioned steps and check for the issue.
1. Click Start, click Control Panel, and then double-click Sound.
2. In the Sound dialog box, click the Playback tab, click the speaker device, and then click Properties.
3. Click the Advanced tab, click to clear the Allow applications to take exclusive control of this device check box, and then click OK.
Also, open volume mixer and match the volume level of the applications to that of the device volume.
If you are still not able to do it, probably you have to reset the volume settings by reinstalling the audio drivers to match the application volume as to device volume.
Refer the below mentioned link to uninstall and re-install device from device manager.
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