High Definition Audio – RAVCPL64.EXE
Ravcpl64.exe is a control panel entry that installs with RealTek High Definition Audio commonly found as Integrated Audio on Intel motherboards. These files can be used to adjust audio properties. You can find more information as well as the latest drivers and updates at http://www.realtek.com.tw/downloads/downloads.aspx and at http://www.intel.com/design/chipsets/hdaudio.htm.
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Realtek Semiconductor