[ << ] | [ >> ] | [Top] | [Contents] | [Index] | [ ? ] |
Another type of effect is performed on a section of the track and the result stored somewhere before it is played back. The result is usually pasted into the track to replace the original data.
The rendered effects are not listed in the resource window but instead are accessed through the Audio->Render effect and Video->Render effect menu options. Each of these menu options brings up a dialog for the rendered effect. Rendered effects apply to only one type of track, either audio or video. If no tracks of the type exist, an error pops up.
A region of the timeline to apply the effect to must be defined before selecting Render effect.... If no in/out points and no highlighted region exist, the entire region after the insertion point is treated as the affected region. Otherwise, the region between the in/out points or the highlighted region is the affected region.
Secondly, the tracks to apply the rendered affect to need to be armed. All other tracks are ignored.
Finally, the rendered affect processes certain track attributes when it reads its input data but not others. Transitions in the affected track are applied. Nudge is not and effects are not. This allows the new data to be pasted into the existing position without changing the nudge value.
In the render effect dialog is a list of all the realtime and all the rendered effects. The difference here is that the realtime effects are rendered to disk and not applied under the track. Highlight an effect in the list to designate it as the one being performed.
Define a file to render the effect to in the Select a file to render to
box. The magnifying glass allows file selection
from a list.
Select a file format which can handle the track type. The
wrench allows configuration specific to the
file format.
There is also an option for creating a new file at each label. If you have a CD rip on the timeline which you want to divide into different files, the labels would become dividing points between the files if this option were selected. When the timeline is divided by labels, the effect is re-initialized at every label. Normalize operations take the peak in the current file and not in the entire timeline.
Finally there is an insertion strategy just like in the render dialog. It should be noted that even though the effect applies only to audio or video, the insertion strategy applies to all tracks just like a clipboard operation.
When you click OK in the effect dialog, it calls the GUI of the effect. If the effect is also a realtime effect, a second GUI appears to prompt for acceptance or rejection of the current settings. After accepting the settings, the effect is processed.
This multiplies the number of each output sample by a scale factor to arrive at the number of the input sample. The output file's sample rate is set to the project sample rate but its length is changed to reflect the scaled number of samples. It also filters the resampled audio to remove aliasing.
If the scale factor is 2, every 2 input samples will be reduced to 1 output sample and the output file will have half as many samples as the input sequence. If it is 0.5, every 0.5 input samples will be stretched to 1 output sample and the output file will have twice as many samples as the input sequence.
This does exactly the same thing as ReframeRT in Stretch mode. It multiplies the output frame number by the scale factor to arrive at the input frame number and changes the length of the sequence. Unlike ReframeRT, this must run from the Video menu and render its output.
Be aware Reframe does not write the scaled frame rate as the frame rate of the rendered file. It produces a file of scaled length and equal frame rate as the project. The new length is 1/scale factor as big as the original sequence.
To create a slow-motion of fast moving video:
[ << ] | [ >> ] | [Top] | [Contents] | [Index] | [ ? ] |
This document was generated on June, 6 2012 using texi2html 1.78.