Importing ACID and REX Files

ACID files and REX 1 and 2 files are converted to the session audio file type. Depending on the preferences settings, ACID and REX files can be imported as sample-based clips or as tick-based Elastic Audio clips. For REX files only, Pro Tools uses any slice data to create Event markers with 100% confidence. ACID files are analyzed for Elastic Audio events just like WAV files, and so events are detected with varying degrees of confidence.

For information on Elastic Audio, see Elastic Audio.

REX files can also be imported as tick-based clip groups.

For information on clip groups, see Clip Groups).

To import ACID and REX flies as sample-based clips:

1 Choose Setup > Preferences and click the Processing tab.

2 Disable the Import REX Files as Clip Groups option.

3 Select No Files as the Drag and Drop from Desktop Conforms to Session Tempo preference.

4 Click OK to close the Preferences dialog.

5 When importing by drag and drop from DigiBase browsers, make sure that the Audio Files Conform to Session Tempo option is disabled.

6 Import the ACID and REX files you want by drag and drop from a DigiBase browser or the Desktop, or using the Import Audio command (see Importing Audio Files and Clips Using the Import Audio Command).

To import ACID and REX files as tick-based Elastic Audio clips:

1 Choose Setup > Preferences and click the Processing tab.

2 Disable the Import REX Files as Clip Groups option.

3 Select REX and ACID Files Only or All Files as the Drag and Drop from Desktop Conforms to Session Tempo preference.

4 Click OK to close the Preferences dialog.

5 Do one of the following:

Import the REX files you want by drag and drop from a DigiBase browser

Import the REX files you want by drag and drop from the Desktop.

Use the Import Audio command (see Importing Audio Files and Clips Using the Import Audio Command).

To import REX files as tick-based clip groups:

1 Choose Setup > Preferences and click the Processing tab.

2 Select the Import REX Files as Clip Groups option.

3 To apply real-time crossfades to the files, enable the Automatically Create Fades option (see Automatic Fades for Imported REX Files).

4 Select REX and ACID Files Only or All Files as the Drag and Drop from Desktop Conforms to Session Tempo preference.

5 Click OK to close the Preferences dialog.

6 Do one of the following:

Import the REX files you want by drag and drop from a DigiBase browser

Import the REX files you want by drag and drop from the Desktop.

Use the Import Audio command (see Importing Audio Files and Clips Using the Import Audio Command).

Automatic Fades for Imported REX Files

If the Import REX Files as Clip Groups option is enabled in the Processing Preferences page, Pro Tools can automatically apply real-time crossfades to the clips or “slices” in imported REX format files.

To apply real-time crossfades to REX files:

1 Choose Setup > Preferences and click the Processing tab.

2 Enable the Import REX Files as Clip Groups option.

3 Enable the Automatically Create Fades option.

4 In the Preferences dialog, click the Editing tab.

5 Under Default Fade Settings, click REX.

6 In the REX Auto-Crossfades dialog, select the shapes you want for crossfades, and click OK.

7 Click OK to close the Preferences dialog.

Depending on your edits or tempo changes after importing REX files, fades can be deleted and you will have to recreate them manually.