After the conversion, the converted file has no sound. What’s the matter?

This tutorial is about how to fix no sound problem under Windows XP. If you encountered the same problem when you are using Windows Vista or Windows 7, please refer to this article.

Since installing stereo mixer may be troublesome, we introduce a virtual sound card technology to record the flash sound so that you don't have to install stereo mixer. You need to upgrade to latest version to use virtual sound card. However, if you prefer using stereo mixer or the virtual sound card is not working, please read the following instructions.

The program converts the sound by recording, so you need to have a full-duplex sound card, which can play and record at the same time. Most new sound cards are duplex, but many older sound cards (and many of those built into the motherboards of notebook computers) are not.

If you have a full-duplex sound card, but the program still says you need to set some options about Stereo Mix, please go to the Control Panel of the computer and double-click on the Sounds and Audio Devices and then you will see a pop-up window.

Please click the Audio tab and then click the Advanced button of Sound Recording and please check Stereo Mix option in the pop-up panel.

If the Advanced button is disabled as the above figure, please click Volume button in Sound Recording panel and then you will see a pop-up window.

Choose Properties in Options menu and then please check Stereo Mix in the list.

After you select Stereo Mix, you will return to a window as follows:

You will see Stereo Mix option is selected.