Computer problem: There is no sound; try the following solutions in consequence. 1. First you have to check the property of the volume icon whether it is muted or not. If it is muted, take out the muted mark. 2. Check whether the cables and plug of the speakers become loose or not. 3. Try to re-install the sound driver. 4. Try to change the new speakers. 5. Try to change the new sound card, etc.
The following free streaming videos are from www.youtube.com Speakers: