You can use the Output Settings tab to configure which controllers can be automated; add, remove, or hide envelopes; set default values; and set each envelope’s default fade curve.

For more information about editing MIDI track envelopes, please see MIDI Track Envelopes and Keyframes.

Use the Input Filters tab to choose which notes or other MIDI messages you want to record (or exclude), modify note-on or note-off velocity, or quantize notes when recording MIDI.

For more information about setting MIDI input filters, please see MIDI Input Filtering.

To set the active clip, click the space next to a clip’s name on the Clip Pool tab. The icon indicates which clip will be used for creating events with the Draw or Paint tool .

You can also click the Paint Clip Selector button in the track header and choose a clip from the menu:

Clear a clip’s check box on the Clip Pool tab to remove it from the Paint Clip Selector menu in the track header without removing it from the track. To make the clip available again, select its check box.

Click the Open button to display the Open dialog, where you can browse to clips you want to add to the track.

Tips:

• Drag a file from the Windows Explorer, Explorer Window, or Media Manager window to the Clip Pool tab to add a clip to a track and set it as the active clip for creating events with the Draw or Paint tool.

• Drag a file from the Windows Explorer, Explorer Window, or Media Manager window to an existing track in the timeline to add a clip to the track and add an event where you drop the clip.

• You can also use the Chopper window to create new clips from a track’s existing media.

• If you want to add a clip to a track without creating an event, drag a file from the Windows Explorer, Explorer Window, or Media Manager window and drop it on the Paint Clip Selector button.

Click the Save button to export the selected clip to a new folder or with a new file name.

For more information about exporting MIDI, please see Exporting MIDI.

You can use either of the following methods to remove clips from the Clip Pool:

• Click the Remove Unused Clips button to remove all unused clips from the track.

• Select a clip in the clip list and click the Delete button to remove it from the track.

You can use the Cut , Copy , and Paste buttons on the Clip Pool tab to cut, copy, and paste clips across tracks.

For more information about cutting, copying, and pasting clips, please see Using Clips with Tracks.

Select a clip in the clip list, and then click the Play button to play it.

Click the Stop button to stop playback.

Select the Loop
button on the Clip Pool if you want a MIDI clip to repeat when painted on the timeline. Events that use loop clips are displayed with a icon in the timeline.

Deselect the Loop button if you want a MIDI clip to be treated as a one-shot. Events that use one-shot clips are displayed with a icon.

For more information about ACID types, please see ACID Types.

You can use the Key column in the Clip Pool to set the key of a MIDI clip. A clip’s key affects playback and how MIDI notes are drawn in events.

• When you create a new MIDI clip via recording or inline MIDI editing, the key is set to None.

• When you open a MIDI file, ACID will set the clip’s key based on the MIDI file. If a MIDI file has multiple key signatures, only the first is used.

• When you open a MIDI file as a project, the ACID project key is updated to match the MIDI file. Each clip (except drum clips) will have its key set accordingly.

When a clip’s key is set, the project key and key change markers are applied to MIDI clips, and the MIDI event data will display notes as WYSIWYH (what you see is what you hear).

When a clip’s key is set to None, the project key and key change markers are not applied to MIDI clips.

To edit a MIDI clip’s key, right-click a clip on the Clip Pool tab, choose Key from the shortcut menu, and then choose a key from the submenu.

To change a MIDI clip’s time signature, right-click a clip on the Clip Pool tab, choose Time Signature from the shortcut menu, and then choose a time signature from the submenu.

The time signature you choose will be used to display the grid on the OPT piano roll editor and to display M.B.T (measure.beat.tick) values on the OPT list editor.