Check the sound playback on your PC first.
You may get this error if you try to record on a PC that is unable to play sound.
If you try to record from a PC that can't play sound,
Click the Sound button in the Ocam main window.
![](https://k.kakaocdn.net/dn/bsV9qG/btqzSPK7gDG/1qcPTIRZzVHkHdtsk7keWK/img.png)
A pop-up menu will appear and the system sound recording is checked, but it should look like the following.
![](https://k.kakaocdn.net/dn/CLm47/btqzT5T02oR/bPX8JksKbwDMottDLh027k/img.png)