# Adjusting audio volume

You can adjust the volume of audio files included in your Captivate movies.

#### To adjust the volume of audio files:

1. Open a Captivate project that contains audio files.

2. Select a slide that contains an audio file.

3. From the Audio menu, select Edit audio.

The Edit Audio dialog box appears.

4. Click Adjust volume.

The Adjust volume dialog box appears.

5. To change the volume, click the volume slider on the left side and drag it up to increase volume or down to decrease volume.

6. If you want, change audio processing options:

   Normalize: Select this option to have Captivate adjust the sound volume automatically. Normalizing audio helps keep the sound level consistent between slides.

   Dynamics: Select this option to amplify quiet sections of the audio to help compensate for variations in audio volume.

   - Ratio: Specifies the maximum amplification that will be used. The default setting of 2.0 sets the quietest sections of the audio to be amplified by a factor of 2. A higher setting can improve projects with large differences between quiet and loud sections, but can also amplify background noise.

   - Noise Threshold: Controls the amplification of background noise. Anything quieter than the noise threshold is not amplified. If background noise is amplified too much, setting a higher noise threshold may help solve the problem. (Note that the Dynamics option does not work well with high noise levels.)

7. When you finish, click OK.