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Troubleshoot

Play the captured file to check its quality. It's likely that you'll need to capture more than once to get the best possible results. The following tips can help correct specific problems including:

No Audio

  1. Make sure the playback device is plugged into the sound card correctly.

  2. Make sure you have selected the correct input in the Volume Control panel as described above in "Adjust Audio Level" (usually will be Line-in, but could be Microphone).

Incorrect Audio Level

If the input level is too high, your file will have crackling or buzzing noises, a phenomenon known as "clipping". If too low, you run the risk of listeners having difficulty hearing your content.
  1. You can adjust the audio input level through your Windows Volume Control. Go to Start | Programs | Accessories | Multimedia | Volume Control to bring up the control panel.
  2. On the Volume Control panel, select Options | Properties.

  3. In the Adjust Volume For section, select Recording (usually Playback will be selected by default) and click OK.
  4. Make sure that Line-In is selected (checked) and use the slider bar to raise or lower the level as needed. Depending on your sound card, the amount you move the slider bar could have greatly differing results.

 

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NIS  |  OIT  |  Boston University  |   October 24, 2002