135 lines
4.9 KiB
HTML
135 lines
4.9 KiB
HTML
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<p>
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The initial <dfn>Session</dfn> dialog, displayed at each start of Ardour, consists
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of several consecutive pages:
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</p>
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<h2>Open Session Page</h2>
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<figure class="left">
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<img class="mini" src="/images/session_setup.png" alt="The Session Setup Dialog">
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<figcaption>
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The Session Setup Dialog
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</figcaption>
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</figure>
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<p>
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On this page, an <dfn>existing session</dfn> can be opened. Any <a href="@@snapshots">snapshot</a>
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of a particular session can also be accessed by clicking on the arrow next to
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the session name to display all snapshots, and then selecting one.
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</p>
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<p>
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If the session is not displayed in the Recent Sessions list, the <kbd
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class="menu">Other Sessions</kbd> button will bring up a file selection dialog
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to navigate the file system.
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</p>
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<p>
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Alternatively, a <kbd class="menu">New Session</kbd> can be created.
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</p>
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<h2 class="clear">New Session page</h2>
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<figure class="left">
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<img class="mini" src="/images/session_new.png" alt="The New Session Dialog">
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<figcaption>
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The New Session Dialog
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</figcaption>
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</figure>
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<p>
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This page allows to type in the name of a session, select a folder to save it in, and
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optionally use an existing <a href="@@session-templates">template</a>.
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</p>
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<p>
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Under <dfn>Advanced Options</dfn>, some fine tuning can be done, like selecting
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whether Ardour should create a Master Bus, or a Control Bus, and how many channels
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the output should have.
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</p>
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<p>
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Other options also decide whether Ardour should automatically connect all inputs
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to the hardware's physical ports. Ardour will do so
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sequentially and in round-robin fashion, connecting the first track's
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input to the first input of the hardware and so on. When Ardour has used
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all available hardware inputs, it will begin again with the first physical
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input.
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</p>
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<p>
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The number of hardware channels used by Ardour can also be limited.
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</p>
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<p>
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By default Ardour will connect all tracks and busses to the Master Bus if
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there is one. However, it can also be told to automatically connect each
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output to the physical outputs of the interface or sound card, and limit
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the number of physical outputs used, as above.
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</p>
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<h2 class="clear">Audio/MIDI Setup</h2>
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<figure class="left">
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<img class="mini" src="/images/Audio-MIDI_Setup.png" alt="The Audio/MIDI Setup Dialog"/>
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<figcaption>
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The Audio/MIDI Setup Dialog
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</figcaption>
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</figure>
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<p>
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This window exposes the different audio options to be used by Ardour for the
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current work session, for hardware and software and is made of:
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</p>
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<table class="dl">
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<tr><th>Audio System</th>
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<td>Depending on the operating system, Ardour can possibly use different audio
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systems, e.g. on Linux, both <abbr title="Advanced Linux Sound Architecture">
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ALSA</abbr> and <abbr title="JACK Audio Connection Kit">JACK</abbr> are
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available.
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</td></tr>
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<tr><th>Driver</th>
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<td>
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On Mac OS X this will typically be <kbd class="menu">CoreAudio</kbd>. On Linux usually
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this will be either <kbd class="menu"><abbr title="Free Firewire Audio Driver fOr
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linux">FFADO</abbr></kbd>
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or <kbd class="menu"><abbr title="Advanced Linux Sound
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Architecture">ALSA</abbr></kbd>, depending on whether or not a firewire device
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is used. Advanced users on all platforms may also
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use <kbd class="menu">NetJack</kbd> which provides network audio I/O.
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</td></tr>
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<tr><th>Device</th>
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<td>The selector should show all availiable interfaces provided by the
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driver above and which are capable of duplex operation.
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<p class="warning">
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When using an Intel Mac running OS X and the builtin audio
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interface, its separate input and output devices must be <a href="@@using-more-than-one-audio-device">
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merged</a> first into a single "aggregate device" before Ardour will be able
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to use it.
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</p>
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</td></tr>
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<tr><th>Sample Rate</th>
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<td>
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The selector will allow to select from any sample rate supported by the device
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selected above it.
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</td></tr>
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<tr><th>Buffer Size</th>
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<td>
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The size of the buffer used by the audio interface can be adjusted
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to allow for either lower latency, or lower CPU usage and higher
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latency.
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</td></tr>
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<tr><th>Input/Output Channels</th>
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<td>
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Specifies the number of hardware channels to use. The
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default is <kbd class="menu">all available channels</kbd>.</td></tr>
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<tr><th>Hardware Input/Output Latency</th>
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<td>Specify the hardware delay in samples for precise latency compensation.</td></tr>
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<tr><th>Calibrate</th>
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<td>
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This button runs a semi-automated guided process to obtain
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precise hardware latency measurements for the above option.</td></tr>
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<tr><th>MIDI System</th>
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<td>
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Selects the MIDI driver to use. On Mac OS X, this will be <kbd
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class="menu">CoreMIDI</kbd>. On Linux, it can be changed between two legacy
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ALSA drivers or the (preferred) new JACK+ALSA implementation.</td></tr>
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</table>
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