Fix no-sound recording issues in Bandicam by checking speaker devices, Windows sound settings, Stereo Mix, and audio drivers.
If you set the sound settings correctly in Bandicam and Windows, you'll be able to record all computer sounds.
in Windows sound settings.

1) If "(Default Output Device)" is selected, but no sound is recorded, select the speaker (or headphone) device directly.

2) If you still can't record computer sound, check the Windows sound settings as shown below:

3) If the sound settings are correct, you will be able to see the sound bar while recording.

4) If you still have a problem with sound recording, try reinstalling the sound card driver, check or uncheck "Run this program in compatibility mode for:
" and try again.
To record computer sound in Windows XP, choose "Primary Sound Capture Driver" (or audio device to be captured) as the primary sound device in Bandicam. Then, check the "Stereo Mix" option in Windows.

1. Right-click on the Speaker icon in the system tray -> Open Volume control -> Click Properties
.
2. Select the 'Recording' icon from the 'Properties' window, and then check the 'Stereo Mix' option
.
3. Set the volume of Stereo Mix to 70-90%
.
Tip 1) If you use Windows XP, you can't record computer sounds with the 'USB headset/sound device'
.
Tip 2) If the sound is not being recorded even after you've adjusted your setting as above, try reinstalling the sound card driver again.
A problem may occur if you use a Bluetooth device as both [Speaker] and [Microphone] at the same time. We recommend you select another sound device for [Speaker] and select a Bluetooth device only for [Microphone]. If you still have problems, please use a USB microphone/headset, or use your smartphone as a microphone.
If the computer sound is not being recorded when using the built-in speakers of the laptop, use a USB microphone/headset or reinstall your sound card drivers.
If the sound is recorded low, plug the headset into another USB slot, click the speaker icon in Bandicam -> increase the volume to 200% and try recording again.

Select the actual speaker or headphone device directly instead of only using the default output device, then check Windows sound settings, volume, and device connection. Reinstalling or updating the audio driver can also fix missing sound.
Choose Primary Sound Capture Driver or the target audio device as Bandicam's primary sound device, then enable Stereo Mix in Windows. After Stereo Mix is enabled, Bandicam can record computer sound in Windows XP.
If you still can't record your computer sound, record the sound settings of Bandicam/Windows and send the video file to bandicam@bandicam.com