The sound format on your PC could be the cause. To change it:
1) Right-click the sound icon at the bottom right corner of your desktop and select Playback devices.
2) Highlight your default audio device, which should have a green tick on its icon, then click Properties.
3) Go to the Advanced tab. Select from the drop-down box 16 bit, 44100 Hz (CD Quality). Then click Apply and OK to save the change.
If CD Quality option fails to help you solve the popping sound issue, try to choose another audio format and see what happens.
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