Once you have added a filter in any of the ways described earlier, you will want to edit the parameters, which is, after all, the whole point of adding a filter.
To edit a filter
Depending on which method you used to add the filter, open the editor by doing one of the following:
- Right-click the purple line running along the top of the clip, or click the speaker icon and choose Edit from the menu (Figure 7.59).
Figure 7.59. Accessing the Edit screen on the Timeline.
- Right-click the purple line running along the top of the track name and select Edit (Figure 7.60).
Figure 7.60. For the track-based filter…
- Click the small "e" next to the filter in the Audio Editor (Figure 7.61).
Figure 7.61. …and in the Audio Editor.
Depending on which type of filter you are using, you see either a standard Liquid Edition interface (Figure 7.62) or one of the new VST plug-in interfaces (Figure 7.63).
Figure 7.62. The standard Liquid Edition Filter Editor.
Figure 7.63. The VST Filter Editor.
First set a mark-in and mark-out point around the audio clip you are working on so that you can edit the parameters on any of these interfaces; then click the Play from Mark-In to Mark-Out button to loop the audio.
Once the audio starts, you can adjust the setting using the mouse for the VST interfaces and a combination of mouse and direct number entry for the standard Liquid Edition interfaces (Figure 7.64).
Figure 7.64. Dragging the mouse over the values to alter them.
Once you have finished adjusting the filter, click the Running Man button to exit the filter.
Some of these filters do not use keyframes. This means any alterations affect the whole length of the clip.
Once you have found a set of parameters that work well, you can save them by clicking the small envelope button and selecting Save VST Bank.
To delete an audio filter
- Right-click and select Delete (Figure 7.65).
Figure 7.65. Deleting a filter.
You can also deactivate a filter from this menu, although if you added the filter via the Audio Editor, you need to click the red square to deactivate it.
Stacking effects is possible, but the order in which they affect the clip is from top to bottom. If you are not hearing the effect you think you should, try adjusting the stack order by moving it up or down via the right-click menu (Figure 7.66).
Figure 7.66. Moving a filter down in priority.
Keep It Simple
Be brave and ask yourself these honest questions: Am I a sound engineer? Do I have any practical, real-life experience working with audio? Do I, in fact, have any idea what I am doing with audio? If the answer to any of these questions is no, then you need to use audio editing with extreme caution.
Audio, as I mention at the start of this chapter, is a very important part of the whole video project; try not to ruin this by overusing the filters available just because they are available. Less is often more.