8 This tab contains settings that do not belong on the other tabs.
11 <img src="/files/a4/a4_preferences_misc.png" alt="preferences
17 <strong>DSP CPU Utilization</strong> sets how many cpu processors can be
18 used to do signal processing. It can be set to use one up to all
30 <strong>Limit undo history</strong> sets how many commands can be
31 undone using <kbd class="mod1">Z</kbd> or
32 <kbd class="menu">Edit > Undo</kbd>.
38 <strong>Save undo history</strong> sets how many commands are saved so
39 they are available to be undone after reopening the session.
45 <strong>Verify removal of last capture</strong> when enabled prompts to
46 verify removal the last recording capture when
47 <kbd class="menu">Edit > Remove Last Capture</kbd> is executed.
53 <strong>Make periodic backups of the session file</strong> will create
54 a backup session file after changes to the timeline. The backup file is
55 the session name followed by <em>.ardour.bak</em>. The backup can be
56 used to recover from crashes when the session had not been explicitly
65 <dfn>Session Management</dfn>
70 <strong>Always copy imported files</strong> selects, and then disables
71 changes to, the <em>Copy files to session</em> option in the
72 <a href="/adding-pre-existing-material/import-dialog/">
73 Add Existing Media</a> dialog.
79 <strong>Default folder for new sessions:</strong> defalts the folder
80 where Ardour will create new session folders. This is used in the
81 <em>Session Setup</em> dialog displayed by
82 <kbd class="menu">Session > New</kbd>.
88 <strong>Maximum number of recent sessions:</strong> determines how many
89 of the last opened sessions shows in the
90 <em>Recent Sessions</em> dialog displayed by
91 <kbd class="menu">Session > Recent</kbd>.
104 <strong>Click audio file:</strong> sets a user defined sound to be
105 played when Ardour's metronome is enabled in the
106 <a href="/controlling-playback/using-the-transport-bar/">
112 <strong>Click emphasis audio file:</strong> sets an optional different
113 metronome sound to be played on the downbeat.
118 <strong>Click gain level:</strong> allows the metronome's click sounds
119 to be boosted or attenuated.
127 <dfn>Automation</dfn>
132 <strong>Thinning factor</strong> ranges from 0 to 1000 with larger
133 values sending fewer automation changes. Thinning is like lossy
134 audio compression, removing data that is less likely to be noticed,
135 although the more you remove the more likely the loss will be noticed.
136 The advantage to thinning is reduced CPU usage.
141 <strong>Automation sampling interval</strong> ranges from 1 to
142 1000 ms. Determines how frequently the automation input is
143 sampled. The shorter the interval the higher the accuracy but also
144 the higher the CPU requirements.