\label{sub:delay_audio}
\index{delay audio}
+WARNING: under most circumstances, this is currently crashing due to a bug. Please use
+F\_adelay ffmpeg plugin instead until this is fixed.
In the Delay Audio effect you can specify the number of seconds you want to delay the video track.
\subsection{DeNoise}%
\item[Damp:] echo envelope decay factor used to smooth the cepstrum/correlation data.
\item[Peaks:] number of maximal envelope values used in the echo gain calculation.
\item[Cutoff Hz:] low frequency cutoff value to prevent beat frequency (\textit{heterodyne}) echo canceling.
- \item[Mode:] \textit{MAN}, \textit{Off}, or \textit{On}. When Off is selected, the plugin is not active. When MAN is used, the only one peak is used for the echo gain envelope. It is set by pressing mouse button $1$ in the ceptstrum graphical output. The Gain and Offset are updated as the pointer drag operation resets the indicated gain and offset values. When On is selected, the echo gain envelope is automatically calculated by cepstrum and auto-correlation of the input audio in the last window size audio samples.
+ \item[Mode:] \textit{MAN}, \textit{Off}, or \textit{On}. When Off is selected, the plugin is not active. When MAN is used, the only one peak is used for the echo gain envelope. It is set by pressing mouse button $1$ (LMB) in the ceptstrum graphical output. The Gain and Offset are updated as the pointer drag operation resets the indicated gain and offset values. When On is selected, the echo gain envelope is automatically calculated by cepstrum and auto-correlation of the input audio in the last window size audio samples.
\item[Windows size:] parameter can be set to \textit{Default}, $1024$, $2048$, \dots \textit{doubled values\dots} up to $262144$.
\item[Amplitude:] the cepstrum value at the drag point during manual envelope selection.
\item[Gain:] echo gain setting determined by manual selection.
\label{sub:motion51}
\index{Motion51}
-Note: Motion and Motion51 plugins are complex and slow to use for video stabilization. If you are stabilizing an entire video, you may want to preporcess by using ffmpeg's \textit{vidstabdetect} and \textit{vidstabtransform} plugins before importing the video into \CGG{}.
+Note: Motion and Motion51 plugins are complex and slow to use for video stabilization. If you are stabilizing an entire video, you may want to preprocess by using ffmpeg's \textit{vidstabdetect} and \textit{vidstabtransform} plugins before importing the video into \CGG{}.
This plugin compensates for unwanted motion and stabilizes the picture. The \textit{Motion51} Plugin simplifies motion stabilization so that without a lot of tweaking you can easily achieve reasonable results, either by using the defaults or varying a single parameter. Since the motion in every clip is specific, there are some additional parameters useful to adjust the settings accordingly.
The Motion51 plugin uses different methods for tracking than the other motion plugins. Motion Stabilization is very useful if you have jittery video, for example when taken from a car window, or while walking.
\label{sub:motion}
\index{Motion}
-Note: Motion and Motion51 plugins are complex and slow to use for video stabilization. If you are stabilizing an entire video, you may want to preporcess by using ffmpeg's \textit{vidstabdetect} and \textit{vidstabtransform} plugins before importing the video into \CGG{}.
+Note: Motion and Motion51 plugins are complex and slow to use for video stabilization. If you are stabilizing an entire video, you may want to preprocess by using ffmpeg's \textit{vidstabdetect} and \textit{vidstabtransform} plugins before importing the video into \CGG{}.
The \textit{motion tracker} is almost a complete application in itself. The motion tracker tracks two types of motion: \textit{translation} and \textit{rotation}. It can track both simultaneously or one only. It can do $\frac{1}{4}$ pixel tracking or single pixel tracking. It can stabilize motion or cause one track to follow the motion of another track. Although the motion tracker is applied as a realtime effect, it usually must be rendered to see useful results. The effect takes a long time to precisely detect motion so it is very slow.
\label{sub:overlay}
\index{overlay video}
-This effect can combine several tracks by using the so called Overlayer. This is a basic internal device normally used by \CGGI{} to create the dissolve transitions and for compositing the final output of every track onto the output bitmap. The Overlayer has the ability to combine one or several image layers on top of a bottom layer. It can do this combining of images in several different (and switchable) output modes such as \textit{Normal}, \textit{Additive}, \textit{Subtractive}, \textit{Multiply} (Filter), \textit{Divide}, \textit{Max} and \textit{Replace}. For a detailed list refer to the on \hyperref[cha:overlays]{Overlays} chapter -- PorterDuff.
+This effect can combine several tracks by using the Overlayer. This is a basic internal device normally used by \CGGI{} to create the dissolve transitions and for compositing the final output of every track onto the output bitmap. The Overlayer has the ability to combine one or several image layers on top of a "bottom layer". It can do this combining of images in several different (and switchable) output modes such as \textit{Normal}, \textit{Addition}, \textit{Subtract}, \textit{Multiply} (Filter), \textit{Divide}, \textit{Max} and \textit{Replace}. For a detailed list and some differences in output expectations, refer to the \hyperref[cha:overlays]{Overlays} chapter -- PorterDuff.
+
The \textit{overlay} plugin enables the use of this Overlayer device in the middle of any plugin stack, opening endless filtering and processing possibilities. It is only useful as a \textit{shared plugin} (i.e.\ a multitrack plugin). To use the overlay plugin:
\item Manipulate the plugin parameters in Track A.
\end{enumerate}
+In the Overlay plugin's parameter window you can choose the overlay "Layer order"
+to select which track plays the role of the "bottom layer" and which plays the
+role of the "top layer". For some overlay modes this can make quite a
+difference, for example the bottom layer is subtracted from the top layer for
+"Subtract" mode. Also in the parameter window, you can choose on which of the tracks
+to overlay the combined output by changing the "Output layer" and it too can make
+quite a difference.
+(Hint: in most cases, you will want to mute the other track so you only see the
+combined output).
+
\subsection{Perspective}%
\label{sub:perspective}
\index{perspective}
audio channels. When using this plugin, be sure to \textit{attach
effect} to all audio tracks by dragging the plugin to the $1^{st}$
audio track and then right mouse clicking all subsequent audio
- tracks which brings up an menu. Highlight the effect shown in the
+ tracks which brings up a menu. Highlight the effect shown in the
middle section and click OK.
\item [F\_flanger]~\\Applies a flanging effect to the audio.
\item [F\_haas]~\\Apply Haas Stereo Enhancer for a more
projects / goodguy / cin-manual-latex.git / blobdiff