If there is no sound for the captured video in Windows XP, it's usually the "Stereo Mix" setting problem.
Depending on the setting of the user's system, the audio cannot be recorded (or volume of the recorded sound is too low).
In such case, the following adjustment in the setting needs to be made for the user's system.
1. Select the 'Open volume control' option in the system tray and run the 'Volume control' window.
If there is no 'Open volume control' option in the system tray, you can run the 'Volume control' window by clicking Window start > Setting > Control panel > Sound and audio devices.
2. Select the 'Properties' from the 'Volume control' window.
3. Select the 'Recording' icon from the 'Properties' window, and then check the 'Stereo Mix' button.
If there is no "Stereo Mix' option, you can check 'Wake output mix', 'What U hear, 'Stereo out', 'Mixed output', 'Post-mix', 'Loop back', 'SUM' and the like.
If you can't check "Recording" icon, you should change the "Mixer device" at the top of the 'Properties' (number 1)
4. If there is the 'Mute" check-box instead of the 'Select' check-box, the box needs to be unchecked.
5. If you set the stereo mix setting properly, you may see the sound bar when recording.
** Tip
1) If you still can't record the sound, change the sound device of Bandicam
2) Do not choose 'USB sound card' or 'USB headset' in Windows XP. If you use Windows 7/Vista, you can record computer sounds with the USB headset/sound device. However, If you use Windows XP, you can't record computer sounds with the USB headset/sound device.
If there is no sound for the captured streaming video in Windows Vista/7, it's usually the "Speakers" setting problem.
1. Select "Win7/Vista Sound (WASAPI)" in Primary Sound Device (Recommended)
And select the "Microphone" in Secondary Sound Device (Optional)
2. Click "Settings..." button under the Sound tab of Bandicam, and click "Playback" tab of Windows
And set the 'Speakers (or Headphones)' as default device, and check the volume level.
3. If you set the 'Speakers' properly, you may see the sound bar when recording.
** Tip
1) If you can't see the "Win7 Sound (WASAPI)" option, it may be the Compatibility problem.
Right-click on Bandicam icon > Properties > Compatibility > and then uncheck "Run this program in compatibility mode for:" If you uncheck it, you can see the "Win7 Sound (WASAPI)" option.
2) If you can't record sounds with "Win7/Vista Sound (WASAPI)", try "Stereo Mix"
Go to "Recording" tab of Windows, and click "Show Disabled Devices (No. 1)", and then click "Enable (No. 2)."
Start Bandicam, and click "Settings" button under the Video tab, and then choose "Stereo Mix (No. 3)" in Primary Sound Device