I have a SoundblasterZX soundcard feeding 5.1 speakers with sub-woofer. I've also had a lot of trouble getting screen captures to record sound and it seems as if every time there's a Windows update it messes my sound settings up. Have you also checked your system default recording device i.e. Systray right click loudspeaker, recording devices?

I have no default recording device. I have Realtec on mobo setup with 7.1 speakers (analog output). SCreen Capture should capture any sound coming from the audio output. Intel i7 4770k, 16GB, GTX1060 3GB, Two 240GB SSD, 4TB HD, Sony HDR-TD20V 3D camcorder, Sony SLT-A65VK for still images, Windows 10 Pro, 64bit
Gary Russell -- TN USA

Check the Realtek/Recording devices/ Stereo Mix/Properties/Levels. Mine is set at 25 to produce the volume level in that screen capture: http://forum.cyberlink.com/forum/posts/list/48775.page#post_box_286782 .

My default recording device is the microphone but captures all sounds as in the above video.

Thanks, but setting the Stereo Mix levels makes no difference. Have Already tried that. I have no microphone so Stereo Mix is Default device. I'll have to try somethign else. Intel i7 4770k, 16GB, GTX1060 3GB, Two 240GB SSD, 4TB HD, Sony HDR-TD20V 3D camcorder, Sony SLT-A65VK for still images, Windows 10 Pro, 64bit
Gary Russell -- TN USA

You may need to setup the sound in Screen recorder. Click on Settings on the bottom of opening window.

. Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.

Tried every setting on and off. Still doesn't capture audio Intel i7 4770k, 16GB, GTX1060 3GB, Two 240GB SSD, 4TB HD, Sony HDR-TD20V 3D camcorder, Sony SLT-A65VK for still images, Windows 10 Pro, 64bit
Gary Russell -- TN USA

I would guess that you found out that there is no audio the first time you tried the srceen recorder after updating to win 10. The Realtek site has R2.82 drivers dated 7/26/2017 that you can try. It is probably one of the first things Cyberlink support will ask you to do if you contact them for help.

And one of the first things I installed after Win 10. Intel i7 4770k, 16GB, GTX1060 3GB, Two 240GB SSD, 4TB HD, Sony HDR-TD20V 3D camcorder, Sony SLT-A65VK for still images, Windows 10 Pro, 64bit
Gary Russell -- TN USA

It does sound like a driver issue to me. I've resolved problems like this in the past by deleting the device from within Windows Device Manager and immediately doing a "discover new devices". It never does any harm and might just work.

Thanks, just tried that and ddin't worked either. I'm trying to capture something from a website. I'll try different browser.

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Tried 3 different browsers , didn't make a difference. I noticed the Realtek Control Panel app missing. Went back to R2.81. Still no Control Panel app. I wrote their tech support. I'm still getting 7.1 sound though. Intel i7 4770k, 16GB, GTX1060 3GB, Two 240GB SSD, 4TB HD, Sony HDR-TD20V 3D camcorder, Sony SLT-A65VK for still images, Windows 10 Pro, 64bit
Gary Russell -- TN USA

Quote You may need to setup the sound in Screen recorder. Click on Settings on the bottom of opening window.

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Okay this bothered me for years totally stumped and the fix is easy guys. Reply above partially right, but not explained well. You have to set things up in settings just like in this reply, but to get the actual sound it has to have the correct file extension (example .wmv) in the file name description (screenrecordersettings). It depends what video format you are using for playback. Then your sound will record.

Example: screenrecordersettings.wmv (if playing in another format it must reflect that extension to hear the sound on playback)