Clip Effects Processor
What is the Clip Effects Processor?
The 'Clip Effects Processor' is a Digital Signal Processing (DSP) utility that works in real time to enhance, or characterise video data, fade titles or change audio levels. As quite often it is typical to have a piece of video footage that doesn't look right, for example, it is too dark, or the white balance is wrong. Or maybe an audio track is too loud and requires reducing to a lower level.

The 'Clip Effects Processor' is a powerful real time tool that allows you to add effects to clips, that non-destructively change your material whilst you are editing and preparing your video creation. Because the 'Clip Effects Processor' is real time this means you can tweak the effects parameters until you are satisfied with the desired result, without the need for any pre-rendering! (N.B. The 'Clip Effects Processors' performance is dependent on processor/memory speed etc).

The 'Clip Effects Processor' has several different effects, which may be sequentially added to any of the clips on the timeline in the 'graphical edit' window. To add an effect to a clip, select the clip on the timeline, and right click the mouse to show the clip options menu. Then select 'Edit Clip Details' to open the 'Clip Details' dialog window and select the 'Effects' tab, as shown below:

The list in the right hand window displays all of the possible effects, and only those that are not greyed may be selected, as some effects are specific to Video, Audio or Keys/Titles. Select one, and then press the 'add' button to add that particular effect to your clip. You may also set the default value(s) for each effect. Similarly, an effect may be removed from a clip, by selecting one in the left hand window, and pressing the 'remove' button.

The 'Before' and 'After' preview images are provided as a guide (these are only applicable to video effects) to assist with effect setup and parameter settings. Once you have finished, press 'OK' to accept changes or 'Cancel' to reject changes and the dialog window will close.

Once added, each effect will show up as an 'E' on the clip in the 'graphical edit' window:

Clip Effect Dynamic Params
Once you have selected a set of effects for a given clip, you may want to vary their parameters in time. For example, the gain effect may be varied between 0 and 4 at any point along the clip. To adjust, select the clip on the timeline, and right click the mouse to show the clip options menu. Under 'Effect Dynamic Params' you will find a list of all the possible parameters that you may change for all the added effects. In the example shown below 'Gain' was selected, which allows you to change the gain (video brightness) of the clip at different points in time.

Basically, the 'Effect Dynamic Parameters Window' is a graph that represents the parameter value (in this instance gain) at any point in time along the clip. The first rounded point represents the initial value for the gain, and you may pick it up with the mouse and move it vertically. You may also add a point at any time along the clip to control the gain at any specific time. To add or remove points, right click the mouse to show the 'Parameter Options Menu'. You may also close the 'Dynamic Parameters Window' from this menu.

How do I make a fading title?
A fading title may be achieved by adding the 'Key Fader' effect to a title clip. This effect is controlled by a Dynamic Parameter to specify the 'fade up' and 'fade down' rate.

Select a title, right click and select 'Edit Clip Effects' from the options menu as described above, add the 'Key Fader' effect and press 'OK'. Then right click again on the clip to find the 'Key Fader - A' parameter under 'Effect Dynamic Params' to control the 'fade up' and 'fade down' rate, as shown below:

A value of '1' means 'full title' and a value of '0' means 'no title', and anything in between is a partial mix.