manual/include/cleaning-up-sessions.html

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<p>
Recording and editing any serious session might leave the session with some
unused or misplaced files here and there. Ardour can help deal with this clutter
thanks to the tools located in the <kbd class="menu">Session &gt; Clean-up</kbd>
menu.
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</p>
<h2 id="bring_all_media_into_session_folder">Bring all media into session folder</h2>
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<p>
When <a href="@@adding-pre-existing-material">importing media files</a>, if
the <kbd class="option">Copy files to session</kbd> has not been checked, Ardour
uses the source file from its original destination, which can help avoiding file
duplication. Nevertheless, when the session needs to be archived or transfered
to another computer, moving the session folder will not move those
<em>external</em> files as they are not in the folder, as seen in <a
href="@@backup-and-sharing-of-sessions">Backup and sharing of sessions</a>.
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</p>
<p>
Using the <kbd class="menu">Bring all media into session folder</kbd> menu
ensures that all media files used in the session are located inside the
session's folder, hence avoiding any missing files when copied.
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</p>
<h2 id="reset_peak_files">Reset Peak Files</h2>
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<p>
Ardour represents audio waveforms with peak files, that are graphical images
generated from the sound files. This generation can be time and CPU consuming,
so it uses a cache of the generated images to speed up the display process. To
watch for files modification, Ardour relies on the file-modification time. If an
external file is embedded in the session and that file changes, but the
system-clock is skewed or it is stored on an external USB disk (VFAT), Ardour
can't know the change happend, and will still use its deprecated peak files.
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</p>
<p>
Using the <kbd class="menu">Reset Peak Files</kbd> menu allows to reset this
cache, which frees up disk space, and forces the re-creation of the peak files
used in the session. It can prove useful if some waveforms are not used anymore,
or if a graphical or time glitch happens.
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</p>
<h2 id="clean_up_unused_sources">Clean-up Unused Sources&hellip;</h2>
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<p>
Recording usually leaves a lot of unused takes behind, be it in midi or audio
form, that can clutter the Region List, and eat up a lot of hard drive space.
While its generally a good practice to keep as many things as possible while
recording, when transferring or archiving the session, some clean up can help a
lot in reducing the sessions clutter and size.
</p>
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<p>
Selecting <kbd class="menu">Clean-up Unused Sources&hellip;</kbd> will force
Ardour to detect those unused waveforms by looking for unused regions, and
(through a prompt) for unused playlists. The media files will not be destroyed,
though. At this stage, they are just copied in a particular place of the session
path (namely, in the <code>dead sounds/</code> sub-folder).
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</p>
<h2 id="flush_wastebasket">Flush Wastebasket</h2>
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<p>
Although Ardour is a <em>non-destructive</em> audio-editor, it allows for a
very careful destruction of unused media materials. This function is closely
linked to the previous one. When the unused sources have been cleaned up and
quarantined, the <kbd class="menu">Flush Wastebasket</kbd> menu will allow for
their physical destruction.
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</p>
<p>
As a safeguarding mechanism though, Flushing the wastebasket in impossible
in the same working session as the Cleaning up of unused sources: the user needs
to close the session and reload it before flushing. It allows to test the
playback of the session and ensure both that Ardour did not commit any mistake
(unlikely, but better safe than sorry), and that the user is absolutely sure of
what he does.
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</p>
<p class="warning">
All media destroyed this way is not sent to the system's <em>trash can</em> but
permanently deleted. If a file is mistakenly destroyed this way, the user will
have to rely on data recovery techniques to try getting it back.
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</p>