Many are having an issue with sound in Google Chrome and only Google Chrome. I have found a solution that worked for me after all other suggestions didn't work. This is for Windows 7. May apply for other versions.
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** If you are not comfortable fixing Windows, have someone you trust do this for you. **
-- Press Windows Key + R, type in DEVMGMT.MSC and click [Ok], expand [Sound, video and game controllers], right click on your sound card, select [Uninstall], and say yes to the reboot. After the reboot, Windows should detect and install the card, or ask you to supply the driver. Once installed, Google Chrome should work.
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