No sound may be a computer: the computer does not sound: basically does not occur, the current board is integrated sound card. Or inherently bad. Ha ha. Computer has no sound may TWO: Headphones question: Replace one last try on another machine. Computer has no sound might III: the sound is turned off: look at the bottom right of the voice icon, is not sound is turned off or the minimum volume to be pulled up. Open on the line coaxial speakers called corrected time difference and the phase difference is what does that mean? Because coaxial speakers bass treble in the middle, speakers, of course, is a modification of the time difference and the phase difference of. Non-coaxial speakers treble and bass is certainly not at the same point. Your computer is not suddenly no sound of it? Suddenly, the computer has no sound and do not worry, a big problem that may not be. Based on experience, cool dazzle speakers, you might try to restart the computer, then try another headset, is not no sound or computer? Is not just to press there? Reinstall the driver? Speakers | Wuhan video systems | speakers and matching microphone provided by Wuhan Engineering Co., Ltd. Jiuhua video. Speakers | Wuhan video system | matching speakers and microphone Video Jiuhua Wuhan Engineering Co., Ltd. (www.jowa-tech.com) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, contact: Mr. Lu.