112 lines
4.3 KiB
HTML
112 lines
4.3 KiB
HTML
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<p>
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The initial <dfn>Session</dfn> dialog consists of several consecutive pages:
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</p>
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<h2>Open Session Page</h2>
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<p>
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On this page, you can open an <dfn>existing session</dfn>. You can also
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open any <a href="@@snapshots">snapshot</a> of a
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particular session by clicking on the arrow next to the session name to
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display all snapshots, and then selecting one. If your session is
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not displayed in the Recent Sessions list, the <kbd class="menu">Other
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Sessions</kbd> button will bring up a file selection dialog to navigate
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your hard drive.<br>
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Alternatively, you can opt to create a <kbd class="menu">New
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Session</kbd>.
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</p>
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<h2>New Session page</h2>
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<p>
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Here you can type in the name of a session, select a folder to save 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>, you can select whether you wish to create
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a Master Bus, or a Control Bus, and how many channels you wish either to have.
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You can also decide whether you want Ardour to automatically connect all inputs
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to the physical ports of your hardware. 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 your 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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You can limit the number of channels on your physical hardware that Ardour
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uses.
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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 you can also tell it to automatically connect each
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output to the physical outputs of your 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>Audio/MIDI Setup</h2>
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<figure>
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<img 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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<dl>
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<dt>Audio System</dt>
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<dd>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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</dd>
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<dt>Driver</dt>
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<dd>
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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 you are
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utilizing a firewire device. 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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</dd>
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<dt>Device</dt>
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<dd>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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If you are using an Intel Mac running OS X and the builtin audio
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interface, you must
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first <a href="@@using-more-than-one-audio-device">merge
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its separate input and output devices into a single "aggregate
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device"</a> before Ardour will be able to use it.
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</p>
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</dd>
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<dt>Sample Rate</dt>
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<dd>
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The selector will allow you to select from any sample rate
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supported by the device selected above it.
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</dd>
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<dt>Buffer Size</dt>
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<dd>
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You can adjust the size of the buffer used by your audio interface
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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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</dd>
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<dt>Input/Output Channels</dt>
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<dd>
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Here you can specify the number of hardware channels to use. The
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default is <kbd class="menu">all available channels</kbd>.</dd>
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<dt>Hardware Input/Output Latency</dt>
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<dd>Specify the hardware delay in samples for precise latency compensation.</dd>
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<dt>Calibrate</dt>
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<dd>
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This button guides you through a semi-automated process to obtain
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precise hardware latency measurements for the above option.</dd>
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<dt>MIDI System</dt>
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<dd>
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Select the MIDI driver to use. On Mac OS X, this will be <kbd
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class="menu">CoreMIDI</kbd>. On Linux, you can change between two legacy
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ALSA drivers or the (preferred) new JACK+ALSA implementation.</dd>
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</dl>
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