127 lines
4.9 KiB
HTML
127 lines
4.9 KiB
HTML
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<p>
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Ardour can be used in many different ways, from extremely simple to extremely
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complex. Many projects can be handled using the following kind of
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<dfn>workflow</dfn>:
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</p>
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<h2>Stage 1: Creating The Project</h2>
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<p>
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The first step is to create a new <dfn>session</dfn>, or open an existing
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one. A session consists of a folder containing a session file that defines
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all the information about the session. All media files used by the session
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are usually stored within the session folder.
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</p>
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<p class="note">
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More details on sessions can be found in <a href="@@sessions">Sessions</a>
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chapter.
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</p>
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<h2>Stage 2: Creating and Importing Audio and MIDI Data</h2>
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<p>
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Once a session has been created, it will be necessary to add some audio
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and/or MIDI material to it—which can be done in one of 3 ways:
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</p>
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<ul>
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<li><dfn>Record</dfn> incoming audio or MIDI data, either via audio or MIDI
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hardware connected to the computer, or from other applications</li>
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<li><dfn>Create</dfn> new MIDI data using the mouse and/or various dialogs
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</li>
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<li><dfn>Import</dfn> existing media files into the session</li>
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</ul>
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<p>
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<dfn>MIDI recordings</dfn> consist of performance data ("play note X at time
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T") rather than actual sound. As a result, they are more flexible than actual
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audio, since the precise sound that they will generate when played depends on
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where the MIDI data is sent to. Two different synthesizers may produce very
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different sounds in response to the same incoming MIDI data.
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</p>
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<p>
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<dfn>Audio recordings</dfn> can be made from external instruments with
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electrical outputs (keyboards, guitars, etc.), or via microphones or other sound capturing equipment.
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</p>
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<p>
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Ardour can use the <dfn>JACK Audio Connection Kit</dfn> for all audio and MIDI
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I/O, making recording audio/MIDI from other applications fundamentally identical
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to recording audio/MIDI from audio/MIDI hardware.
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</p>
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<h2>Stage 3: Editing and Arranging</h2>
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<p>
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Once there is material within the session, it can be arranged in time. This
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is done in one of the two main windows of Ardour: the <dfn>Editor</dfn>
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window.
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</p>
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<p>
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Audio/MIDI data appears in chunks called <dfn>regions</dfn>, which are
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arranged into horizontal lanes called <dfn>tracks</dfn>. Tracks are stacked
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vertically in the Editor window. Regions can be copied, shortened, moved, and
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deleted without changing the actual data stored in the session at
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all—Ardour is a <dfn>non-destructive</dfn> editor. (Almost) nothing
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done while editing will ever modify the files stored on disk (with the
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exception of the session file itself).
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</p>
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<p>
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Many <dfn>transformations</dfn> can be done to the contents of regions, again
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without altering anything on disk. It is possible to alter, move, delete and
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remove silence from audio regions, for example.
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</p>
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<p>
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MIDI regions can also be copied, moved, shortened, or deleted without altering
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the MIDI files, though any edit like adding, suppressing or moving <em>notes</em>
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inside a region results in a modification of the underlying MIDI file.
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</p>
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<h2>Stage 4: Mixing and Adding Effects</h2>
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<p>
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Once the arrangement of the session is mostly complete, the next step is the
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<dfn>mixing</dfn> phase. Mixing is a broad term to cover the way the audio
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signals that the session generates during playback are processed and added
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together into a final result that is actually heard. It can involve altering
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the relative levels of various parts of the session, adding effects that
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improve or transform certain elements, and others that bring the sound of the
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whole session to a new level.
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</p>
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<p>
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Ardour allows <dfn>automation</dfn> of changes to any mixing parameters (such
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as volume, panning, and effects controls)—it will record the changes
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made over time, using a mouse or keyboard or some external control device,
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and can play back those changes later. This is very useful because often the
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settings needed will vary in one part of a session compared to
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another—rather than using a single setting for the volume of a track,
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it may need increases followed by decreases (for example, to track the
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changing volume of a singer). Using automation can make all of this
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relatively easy.
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</p>
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<h2>Stage 5: Export</h2>
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<p>
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Once the arrangement and mix of the session is finalized, a single audio file
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that contains a ready-to-listen to version of the work is usually desired.
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Ardour allows the <dfn>exporting</dfn> of audio files in a variety of formats
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(simultaneously in some cases). This exported file would typically be used in
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creating a CD, or be the basis for digital distribution of the work.
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</p>
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<p>
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Of course it is sometimes desirable to export material that isn't finished
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yet—for example, to give a copy to another party to mix on their own
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system. Ardour allows exporting as much of a session as desired, at any
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time, in any supported format.
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</p>
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