audio

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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Audio, Video, Pitch!

I did something random but rather amusing this weekend:

  1. Take your favorite video, it doesn't matter what.
  2. Use Avidemux2, a great video editor to export just the audio as a WAV. To do this, select WAV PCM as your audio codec and then select Audio > Save from the menu.
  3. Open the resulting .wav in Audacity and use the Change Pitch filter on the entire file.
  4. TIP: -30% sound like low-pitch and +35% sounds more high-pitch.
  5. Export your Audacity project as a .wav PCM file.
  6. Now, return to Avidemux and select Audio > Main Track. Choose External PCM from the dropdown and now locate your saved WAV from Audacity.
  7. Change the audio codec to FFmpg MP2, 128kbps.
  8. Change the video codec to DVD(lavc) and make sure the Container is 'MPEG PS+AV'
  9. Save your new video and laugh

It usually takes a while to encode, and the quality won't probably be great... But it's still pretty funny. Some of my mpeg's didn't work, for that I had to play to fiddle with the framerate & filters among other things for an hour or two before they turned out right.

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