> Configuring Audio Properties
> Display the Audio properties tab to modify the selected audio clips in your timeline. You can apply audio properties to any clip which contains audio, including clips with both video and audio.
> You can also add audio actions (transitional properties—those which change over time) to a clip and apply properties to them. Audio actions can be added to both the start and end of a clip to create a transition. For details, see Using Actions.
> Select a video clip with audio, audio clip, screen recording clip with audio, or place the scrubber at the start or end of an audio action in the clip before applying properties. To display the Audio Properties pane, click the Audio Properties icon, as shown in Figure 45.
> Figure 45. Audio Properties
> To reset all audio properties in the selected clip to default values, click the gear icon at the top-right corner of the pan and select Reset to Defaults.
> Each clip with audio displays with a waveform. This waveform provides a visual representation which reflects volume changes. Figure 46 depicts an audio clip with an audio action set to increase volume. Notice how the waveform display is enlarged to the right, due to the added action (shown in purple).
> Figure 46. Audio Clip in Timeline
> Audio properties are described in Table 7.

> Table 7. Audio Properties Controls
> Control | Description
> Volume | Use the slider or enter a percentage value (0 to 190%) to change the audio on a clip. This can be used with an action to gradually change the audio level as shown in the image above.
> Ducking | Check to apply audio ducking and automatically adjust volume levels on clips with audio on lower layers. When applied to a clip, all audio on lower level clips is decreased to draw attention to the audio in this clip. Use the slider (or manually enter a value) to specify the percent of reduction to apply. It is a reverse scale where, for example, 5% means that the clips below are allowed 5% of their volume (reduced by 95%). Ducking must be applied to the main (or top) clip that you want to hear, and not the lower level clips where you want to the volume decreased. Ducking is particularly useful when using background music with narration.
> Processing |
> Solo Audio | Click S icon to cause channel to be solo audio.
> Pan Audio | Click and adjust pan icon to set pan (left or right) of channel audio. You can also pan multiple clips by selecing them before adjusting the pan control. Note: If the channels do not match between all of the selected clips, a 'Multiple Values' message will appear. When the channels do match, the Audio Mix options will appear. Also, The solo button will be disabled when multiple clips are selected at one time.
> Smooth Volume Levels | Select to normalize and smooth out volume peaks while increasing quieter clips so that the audio has a more consistent volume.
> Effect | Check to apply the selected audio effect (from the Effect popup menu) to the audio clip. Use the slider or manually enter the percent of effect to apply.
> Amount | Move slider to change amount of effect from 0 to 100%.
> Filter: Remove Background Noise | Check to reduce the audio volume of incidental background noise, which typically results in a clearer audio track. Use the slider or manually enter the percent of sensitivity to apply.
> Audio Filters | Click the disclosure triangle down to display the audio filters. Click the plus icon to add filters to the selected clip. For details see Using Audio and Video Filters.