Regions are the basic elements of editing and composing in Ardour. Each region represents a single, contiguous section of one or more audio files. Regions are defined by a fixed set of attributes:
the source audio file(s) they represent
a starting point in the audio file(s)
a length
When placed into a playlist, they gain additional attributes:
a position along the timeline
a layer
There are other attributes as well, but they do not define the region. Things you should know about regions:
By themselves, regions do not consume hardly any of your computer's resources. Each region requires a small amount of memory, and represents a rather small amount of CPU work if placed into an active track. So, don't worry about creating regions whenever you need to.
Although a region can represent an entire audio file, they are never equivalent to an audio file. Most regions represent just parts of an audio file(s) on disk, and removing a region from a track has nothing to do with removing the audio file(s) from the disk ((the Destroy operation, one of Ardour's few destructive operations, can affect this)). Changing the length of a region has no effect on the audio file(s) on disk. Splitting and copying regions does not alter the audio file in anyway, nor does it create new audio files ((the Export , Bounce and Reverse operations do create new audio files)).
Regions are initially named using either:
the name of the playlist for which they were recorded
the name of the embedded/imported audio file they represent
These are not audio files, but regions that represent the full extent of an audio file. Every time a new recording is done, or a new file is embedded/imported, a new region is created that represents the entire audio file(s) This region will have the name of the playlist/original file, followed by a "-" and then a number.
For recorded regions, the number will increase each time a new recording is made. So, for example, if there is a playlist called "Didgeridoo", the first recorded whole file region for that playlist will be called "Digderidoo-1". The next one will be "Digeridoo-2" and so on.
For imported/embedded files, the region name will be based on the file name, but with any final suffix (e.g. ".wav" or ".aiff") removed.
Normally, whole file regions are not inserted into tracks/playlists, but regions derived from them are. The whole-file versions live in the editor region list where they act as an organizing mechanism for regions that are derived from them.
When a region is inserted into a track/playlist, its initial name will end in a version number, such as ".1" or ".103". For a recorded region, if the whole file region was "Hang drum-1", then the region in the track will appear with the name "Hang drum-1.1". For an imported/embedded region, if the whole file region was "Bach:Invention3", then the region in the track will appear with the name "Bach:Invention3.1".
If the region is a copy of another region, it will begin life with the same name as the original. When an operation is carried out that modifies one of the copies, that particular copy will be renamed by incrementing the version number.
In general, operations on regions apply to whichever regions are currently selected .
To select a single region, click on it using .
To add an unselected region to the currently selected regions, click on it using Shift+.
To remove a selected region from the currently selected regions, click on it using Shift+.
Select the region(s) to be removed. Then press the "Delete" key or use the standard key binding for "Cut" ( Ctrl+X by default).
Note that "removing" a region is a non-destructive operation. It has no effect on the audio file(s) stored on disk. If you really want to destructively remove the region, use the context menu for the region which has a "Destroy" item. This is not guaranteed to remove the audio file from your disk storage, but it generally will.
To move a region, make sure you are in object mouse mode. Move the mouse pointer into the waveform display part of the region, press and drag. The region will follow the mouse pointer as you move it around. By default, the region can move freely along the timeline - see Section 4.1.2, “Snap Settings” for information on how to force the region to align to certain kinds of points along the timeline.
To move a region from one track to another, simply start a move as described above, but move the mouse pointer into the desired track. The region will follow the mouse pointer. Note that if you have other kinds of "tracks" visible, the region will remain where it is as the mouse pointer moves across them, and will then jump to the new track. This serves as a visual reminder that you cannot drag an audio region into an automation track or a bus, for example.
To move multiple regions, select them before moving. Then click+drag on one of the selected regions. All the regions will move, keeping their positions relative to each other.
To copy a region, make sure you are in object mouse mode. Move the mouse pointer into the waveform press the Ctrl key, keep it down while pressing and drag. A new region is created and will follow the mouse pointer as it moves. See Section 4.4.4, “Moving Regions” for more details on moving the copied region around.
To copy multiple regions, select them before copying. Then click+drag on one of the selected regions. All the regions will be copied and as they move, the will keep their positions relative to each other.
If you context-click on a region, a popup menu will appear. At or near the top of that menu is a list of all regions that exist in the clicked-upon track under the mouse pointer. Each region entry (shown by name) points to a submenu that contains region-specific operations:
creates and displays the editor for this region, allowing even more specific control over the region than this menu
moves the region to the top layer of this track (works only in "Most recently added/moved/trimmed regions are higher" layer mode
moves the region to the bottom layer of this track (works only in "Most recently added/moved/trimmed regions are higher" layer mode
if the edit cursor is within this region, defines the region sync point at the edit cursor location.
plays this region via the auditioner
exports this region to a new audio file, via the export dialog (thus allowing resampling, dithering, format specification etc.)
re-records this region (with any plugins/inserts applied) to a new audio file, and replaces the region with one referring to the new file.
prevents the region from being moved, trimmed, or modified in almost any way.
removes the lock on region modification
makes the region silent during playback
shows/hides the region gain envelope
turns the region gain envelope on/off (the line is gray when the envelope is off, green when it is on)
if the region was recorded (and Broadcast WAVE was the native file format) moves the region to its original capture position
alters the gain processing of the region so that the loudest sample is at 0dBFS
undoes the effect of a normalize
writes the region to a new audio file with the contents reversed, and replaces the region with one referring to the new file
moves the region in various ways
moves the region forward by the amount shown in the nudge clock
moves the region backward by the amount shown in the nudge clock
moves the region forward by the same offset that it might have been (incorrectly) adjusted by when captured
moves the region backwards by the same offset that it might have been (incorrectly) adjusted by when captured
adjusts the start of the region to the current position of the edit cursor (if possible)
adjusts the end of the region to the current position of the edit cursor (if possible)
if the edit cursor is within the region, splits the region at the editor cursor location
if the region is a multi-channel one, creates new regions corresponding to each channel. The new regions are added to the editor's region list, not the track.
pops up a dialog allowing the region to be copied 1 or more times. Each copy is placed directly after the original or previous copy.
copies the region as many times as necessary to fill the track to the current session end mark. Each copy is placed directly after the original or previous copy.
remove the region from the track (non-destructive)
remove the region from the track and the editor region list, and if no other regions are referencing it, remove the audio file that the region is derived from. ( DESTRUCTIVE )