Realtek HD + Mic (aka Intel Integrated Audio on ICH8)

I bought a low-end Logitech headset recently and it works perfectly in Linux but for some reason in Windows the volume was terrible. To make matters worse, it seemed like the drivers don't support mic boost and only the main "capture" slider is changable… The others such as line-in are locked!

After a bit of Googleing I came to relatively simple fix to the problem. If you're looking for a way to bring up your mic's volume, follow these steps:

  1. Update to the lastest drivers available from the Realtek website.
  2. Browse to C:\Program Files\Realtek\Audio\InstallShield and run the program named MicCal.exe
  3. Follow the on-screen instructions and when promted with a slider, bring it down to zero, leave it there for a few seconds. Raise it to 100% and be sure to click Next right away. Continue with the on-screen instructions to finish the wizard.
  4. Open up Realtek HD Sound Effect Manager from the Sounds, Speech & Audio Devices control panel category. You'll notice under the Playback knob on the left, you have a litte wrench/tool icon; click it and make sure Rear Pink In is checked off.
  5. Now, (use the arrows as needed) click the small button labeled .. (the Advanced button) under Rear Pink In. There, hidden, are the options for Mic Boost!

Reference: johnnygoodface's post at techspot forums

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