Steinberg Nuendo 4 Operation Manual

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The Pool
Setting parameters of the Rename Object dialog
The Rename Object dialog provides a great deal of flexi-
bility and options when renaming multiple objects in Nu-
endo. In addition to simple prefix, suffix, and incremental 
numeric additions to names, you can remove certain char-
acters, include timestamp information and more.
The Rename Objects dialog
Each of the eight fields found in the left section of the Re-
name Objects dialog can be used to add an element to 
the name generated for each object. 
The first line will create text or numbers at the left of the 
new name. The eighth and last line will create text or num-
bers at the very right of the new name.
Each of the eight lines can add one of the following ele-
ments including a prefix and suffix for each item (You can 
use a prefix to create a space separating items in the gen-
erated name.):An example of the result is displayed in the bottom of the 
window for reference. All of these parameters can be 
saved as a preset as well.
Copying clips in the Pool
To make a duplicate clip, proceed as follows:
1.Select the clip you wish to copy.
2.Select “New Version” on the Media menu.
A new version of the clip appears in the same Pool folder, with the same 
name but with a “version number” after it, to indicate that the new clip is 
a duplicate. The first copy made of a clip will logically get the version 
number “2” and so on. Regions within a clip are copied too, but keep 
their name. 
Inserting clips into a project
By using menus
1.Select the clip(s) you want to insert into the project.
2.Pull down the Media menu and select an “Insert into 
Project” option.
“At Cursor” will insert the clip(s) at the current project cursor position. 
“At Origin” will insert the clip(s) at their Origin Time position(s).
Note that the clip will be positioned so that its snap 
point is aligned with the selected insert position.
You can also open the Sample Editor for a clip by double-clicking it, and 
perform the insert operation from there. This way you can set the snap 
point before inserting a clip.
3.The clip is inserted on the selected track or on a new 
audio track.
If several tracks are selected, the clip will be inserted on the first selected 
track.
Option Description
Free Text Any text you would like to include in the name.
Original Name The original name given to the object. There are options 
to remove all numbers or non-alphanumerics or just the 
ones on the left or right sides.
Number An increasing or decreasing number starting with a mini-
mum amount of digits and a starting number (i. e. 001, 
002 etc.).
Project Time The current location of the clip in the project window us-
ing any of the seven ruler formats (Bars+Beats, Time-
code etc.).
Date The date that the file was created in several formats.
File Extension The file type.
Audio Bitsize The bit depth of the audio file.
Samplerate The samplerate of the audio file.
Audio Tempo The audio tempo for that clip if it has been assigned.
User  Attribute Any one of the custom attributes created in the Setup User 
Attributes dialog (see “User Attributes” on page 299).
!Copying a clip does not create a new file on disk, but 
just a new edit version of the clip (referring to the 
same original file).
Option Description 
						

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By using drag and drop
You can use drag and drop to insert clips into the Project 
window. You can also use drag and drop from the Sample 
Editor for a clip by making a selection range and pressing 
[Ctrl]/[Command] while dragging. Note:
Snap is taken into account if activated.
While you drag the clip in the Project window, its posi-
tion will be indicated by a marker line and a numerical po-
sition box.
Note that these indicate the position of the snap point in the clip. For ex-
ample, if you drop the clip at the position 10.00, this will be where the 
snap point ends up. See “Adjusting the snap point” on page 266 for in-
formation on how to set the snap point.
If you position the clip in an empty area in the event dis-
play (i.e. below existing tracks), a new track is created for 
the inserted event.
Deleting clips
Removing clips from the Pool
To remove a clip from the Pool without deleting it from the 
hard disk, proceed as follows:
1.Select the clip(s) and select “Delete” from the Edit 
menu (or press [Backspace] or [Delete]).
ÖIf you try to delete a clip that is used by one or more 
events, the program will ask you if you want to remove 
these events from the project.
If you cancel, neither the clip nor the associated events are deleted.
2.Click Remove.
A new prompt asks whether you want to move the clip to the Trash or re-
move it from the Pool.
3.Select “Remove from Pool”.
The clip is no longer associated with the project, but still exists on the hard 
disk and can be used in other projects etc. This operation can be undone.
Deleting from the hard disk
To delete a file permanently from the hard disk, it must first 
be moved to the Trash folder:
1.Follow the instructions for deleting clips above and 
click the Trash button.
Alternatively, you can drag and drop clips into the Trash folder.
2.Select “Empty Trash” on the Media menu. Select one 
of the two options in the alert: 
Click “Erase” to delete the file on the hard disk perma-
nently.
This operation cannot be undone!
Click “Remove from Pool” to remove the clip from the 
Pool but to keep the file.
ÖTo retrieve a clip or region from the Trash Folder, drag 
and drop it back into an Audio or Video folder.
Removing unused clips from the Pool
This function finds all clips in the Pool that are not used in 
the project. You can then decide whether to move them to 
the Pool Trash folder (where they can be permanently de-
leted) or to remove them from the Pool:
1.Select “Remove Unused Media” on the Media or con-
text menu.
A message appears asking you whether you want to move the file to the 
trash or to remove it from the Pool.
2.Make your selection.
Removing regions
To remove a region from the Pool, select it and select “De-
lete” from the Edit menu (or press [Backspace] or [Delete]). 
ÖNote that for regions, there is no alert if the region is 
used in the project!
Snap point
!Before you permanently delete audio files from the 
hard disk, make sure that they are not used by an-
other project! 
						

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Locating events and clips
Locating events via clips in the Pool
If you want to find out which events in the project refer to a 
particular clip in the Pool, proceed as follows:
1.Select one or more clips in the Pool.
2.Select “Select in Project” on the Media menu.
All events that refer to the selected clip are now selected in the Project 
window.
Locating clips via events in the Project window
If you want to find the clip for an event in the Project win-
dow, proceed as follows:
1.Select one or more events in the Project window.
2.Pull down the Audio menu and select “Find Selected 
in Pool”.
The corresponding clip(s) will be located and highlighted in the Pool. If 
the Pool window isn’t already open, it will be opened.
Searching for audio files
The Pool can help you locate audio files in your Pool, on 
your hard disk or other media. This works much like the 
regular file search, but with a couple of extra features:
1.Click the Search button in the toolbar.
A search pane appears at the bottom of the window, displaying the 
search functions.
The search pane in the Pool.
By default, the search parameters available in the search 
pane are “Name” and “Location”. For using other filter cri-
teria, see “Extended search functionality” on page 304.
2.Specify the name of the file(s) to search for in the 
Name field.
You can use partial names or wildcards (*). Note that only audio files of 
the supported formats will be found.
3.Use the Location pop-up menu to specify where to 
search.
The pop-up menu will list all your local drives and removable media. 
If you want to limit the search to certain folders, choose 
“Select Search Path” and select the desired folder in the 
dialog that appears.
The search will include the selected folder and all subfolders. Note also 
that folders you have recently selected using the “Select Search Path” 
function will appear on the pop-up menu, allowing you to quickly select 
any of them.
4.Click the Search button.
The search is started and the Search button is labeled Stop – click this 
to cancel the search if needed.
When the search is finished, the found files are listed to 
the right.
To audition a file, select it in the list and use the play-
back controls to the left (Play, Stop, Pause and Loop).
If Auto Play is activated, selected files will automatically be played back.
To import a file into the Pool, double-click on it in the list 
or select it and click the Import button.
5.To close the search pane, click the Search button in 
the toolbar again.
The Find Media window
Alternatively to the search pane in the Pool, you can open 
a stand-alone Find Media window by selecting the 
“Search Media…” option from the Media or context menu 
(also available from the Project window). This offers the 
same functionality as the search pane. 
To insert a found clip or region directly into the project 
from the Find Media window, select it in the list in the dia-
log and select one of the “Insert into Project” options from 
the Media menu.
The options are described in the section “Inserting clips into a project” 
on page 301. 
						

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Extended search functionality 
Apart from the search criterion Name, additional search fil-
ters and user attributes are available. To use them, proceed 
as follows:
1.Set up a couple of user attributes using the “View/
Attributes” pop-up menu.
2.Click the Search button on the toolbar.
The Search pane is displayed in the lower part of the Pool window.
3.Move the mouse pointer over the “Name” text to the 
right of the name field, until an arrow is displayed, and 
click it.
4.The Extended Search pop-up menu opens.
This contains six options determining which search criteria will be dis-
played above the Location field (Name, Size, Bitsize, Channels, Sample 
Rate or Date). It also contains all the user attributes you specified and the 
Add Filter and Presets submenus.
The search criteria have the following parameters:
 Name: partial names or wildcards (*)
 Size: Less than, more than, equal, between (two values), in 
seconds, minutes, hours and bytes
 Bitsize (resolution): 8, 16, 32, 64
 Channels: mono, stereo and from 3 to 16
 Sample Rate: various values, choose “Other” for free setting
 Date: various search ranges
5.Select one of the topmost 6 options in the pop-up 
menu to change the search option above the Location 
pop-up menu.
This way, you can choose e. g. to display the Size or Sample Rate para-
meter instead of the Name field.
6.If you want to display more search options, select the 
desired element from the Add filter submenu.
This allows you e. g. to add the Size or the Sample Rate parameters to 
the already displayed Name and Location parameters.
This allows for a very detailed search, helping you to mas-
ter even the largest sound database.
You can store presets of your search filter settings. For 
this, click Store Presets in the Presets submenu and enter 
a name for the preset.
Existing presets will be found at the bottom of the list. To remove a pre-
set, click on the preset to activate it, then select Remove Preset.
It is also possible to further refine the search options by 
including your user attributes in the search criteria. 
When user attributes have been defined, these will appear on the pop-
up menu (see above).
Move the mouse pointer over the “Name” text to 
the right of the name field and click…
… to show the Extended Search pop-up menu. 
						

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About missing files
When you open a project, the Resolve Missing Files dialog 
(see below) may open, warning you that one or more files 
are “missing”. If you click Close, the project will open any-
way, without the missing files. In the Pool, you can check 
which files are considered missing. This is indicated by a 
question mark in the Status column.
A file is considered missing under one of the following 
conditions:
The file has been moved or renamed outside the pro-
gram since the last time you worked with the project, and 
you ignored the Resolve Missing Files dialog when you 
opened the project for the current session.
You have moved or renamed the file outside the pro-
gram during the current session.
You have moved or renamed the folder in which the 
missing files are located.
Locate missing files
1.Select “Find Missing Files” from the Media or context 
menu.
The Resolve Missing Files dialog opens. 
2.Decide if you want the program to try to find the file for 
you (Search), if you want to do it yourself (Locate) or if you 
want to specify in which directory the program should 
search for the file (Folder).
If you select Locate, a file dialog opens, allowing you to 
locate the file manually.
Select the file and click “Open”.
If you select Folder, a dialog opens to let you specify the 
directory in which the missing file can be found.
This might be the preferred method if you have renamed or moved the 
folder containing the missing file, but the file still has the same name. 
Once you select the correct folder, the program finds the file and you can 
close the dialog.
If you select Search, a dialog opens to let you specify 
which folder or disk should be scanned by the program. 
Click the Search Folder button, select a directory or a disk and click the 
Start button. If found, select the file from the list and click “Accept”. 
Afterwards Nuendo tries to map all other missing files automatically.
Reconstructing missing edit files
If a missing file cannot be found (e. g. if you have acciden-
tally deleted it from the hard disk), it will normally be indi-
cated with a question mark in the Status column in the 
Pool. However, if the missing file is an edit file (a file cre-
ated when you process audio, stored in the Edits folder 
within the project folder), it may be possible for the pro-
gram to reconstruct it by recreating the editing to the orig-
inal audio file:
1.Open the Pool and locate the clip(s) for which files are 
missing.
2.Check the Status column – if it says “Reconstruct-
ible”, the file can be reconstructed by Nuendo.
3.Select the reconstructible clips and select “Recon-
struct” from the Media menu.
The editing is performed and the edit files are recreated.
Removing missing files from the Pool
If the Pool contains audio files that cannot be found or re-
constructed, you may want to remove these. For this, select 
“Remove Missing Files” from the Media or context menu. 
This will remove all missing files from the Pool as well as 
their corresponding events from the Project window. 
						

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Auditioning clips in the Pool
There are three methods you can use to audition clips in 
the Pool:
By using key commands.
If you activate the “Playback Toggle triggers Local Preview” option in the 
Preferences (Transport page), you can use the [Space] bar to audition. 
This is the same as clicking the Audition icon on the toolbar.
By selecting a clip and activating the Play button.
The whole clip will play back, unless you stop playback by clicking the 
Play button again.
The Play button.
By clicking somewhere in the waveform image for a clip.
The clip will play from the position in the waveform you click until the end 
of the clip, unless you stop playback by clicking the Play button, or by 
clicking anywhere else in the pool window.
Click in the waveform image to audition a clip.
The audio will be routed directly to the Control Room, if 
the Control Room is activated. When the Control Room is 
deactivated, the audio will be routed to the Main Mix (the 
default output) bus, bypassing the audio channel’s set-
tings, effects and EQs. 
You can adjust the auditioning level with the miniature level fader on the 
toolbar. This does not affect the regular playback level.
If you have activated the Loop button before you audition, 
the following will happen:
The Loop button.
If you click the Play button to audition a clip, it will repeat 
indefinitely until you stop playback by clicking the Play or 
Loop button again.If you click in the waveform image to audition, the sec-
tion from the point you clicked to the end of the clip will re-
peat indefinitely until you stop playback.
Opening clips in the Sample Editor
The Sample Editor allows you to perform detailed editing 
on the clip (see “The Sample Editor” on page 258). You 
can open clips in the Sample Editor directly from the Pool 
in the following ways:
If you double-click on a clip waveform icon or a clip 
name in the Media column, the clip will open in the Sam-
ple Editor.
If you double-click on a region in the Pool, its clip will 
open in the Sample Editor with the region selected.
One practical use for this is to set a snap point for a clip 
(see “Adjusting the snap point” on page 266). When you 
later insert the clip from the Pool into the project, you can 
have it properly aligned according to the set snap point.
Import Medium…
The Import Medium dialog lets you import files directly into 
the Pool. It is opened from the Media or context menu or 
with the Import button in the Pool window.
Clicking the Import button opens the Import dialog: 
						

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This is a standard file dialog, where you can navigate to 
other folders, audition files etc. The following audio file for-
mats can be imported:
 Wave (Normal or Broadcast, see “Broadcast Wave files” on 
page 441)
 AIFF and AIFC (Compressed AIFF)
“Importing ReCycle files” on page 493)
 Dolby Digital AC3 file (ac3 – if you have the Steinberg Dolby 
Digital Encoder installed in your system)
 DTS file (dts – if you have the Steinberg DTS Encoder in-
stalled in your system)
 SD2 (Sound Designer II) 
 MPEG Layer 2 and Layer 3 (mp2 and mp3 files – see “Impor-
ting compressed audio files” on page 493)
 Ogg Vorbis (ogg files – see “Importing compressed audio 
files” on page 493)
 Windows Media Audio (Windows – see “Importing com-
pressed audio files” on page 493)
 Wave64 (w64 files)
They may have the following characteristics:
 Stereo or mono
 Any sample rate (although files with another sample rate than 
the one used in the project will play back at the wrong speed 
and pitch – see below).
 8, 16, 24 bit or 32 bit float resolution
The following videos formats can also be imported:
 AVI (Audio Video Interleave)
 MOV and QT (QuickTime)
 WMV (Windows only)

 MPEG 1 and 2 video files.
ÖIt is also possible to use the commands on the Import 
submenu on the File menu to import audio or video files 
into the Pool.When you select a file in the Import Medium dialog and 
click Open, the Import Options dialog opens:
It contains the following options:
Copy File to Working Directory.
Activate this if you want a copy of the file to be made in the Audio folder 
of the project, and have the clip refer to this copy. If the option is off, the 
clip will refer to the original file in the original location (and will thus be 
marked as “external” in the Pool – see “About the Status column sym-
bols” on page 299).
Convert to Project section:
Here you can choose to convert the sample rate (if the sample rate is dif-
ferent than the one set for the project) or the sample size, i. e. resolution 
(if the sample size is lower than the record format used in the project).
The options are only available if necessary. Note that if you are importing 
several audio files at once, the Import Options dialog will instead contain 
a “Convert if needed” checkbox. When this is activated, the imported 
files will be converted only if the sample rate is different or the sample 
size is lower than the project’s.
Split Channels
If this is activated, stereo and multi-channel files will be split into a corre-
sponding number of mono files – one for each channel – and these will 
be imported into the Pool. Note that if you use this option, the imported 
files will always be copied to the Audio folder of the project, as described 
above.
Do not Ask again.
If this is activated, files will always be imported according to the settings 
you have made, without this dialog appearing. This can be reset in the 
Preferences (Editing–Audio page). 
ÖYou can always convert files later by using the Convert 
Files (see “Convert Files” on page 310) or Conform Files 
(see “Conform Files” on page 310) options.
!For video files to be played back correctly, the right 
codecs have to be installed. 
						

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Importing audio CD tracks
You can import tracks (or sections of tracks) from an au-
dio CD directly into the Pool by using the “Import Audio 
CD” function on the Media menu. This opens a dialog in 
which you can specify which tracks should be copied from 
the CD, converted to audio files and added to the Pool.
For details about the Import Audio CD dialog, see “Im-
porting audio CD tracks” on page 491.
Exporting regions as audio files
If you have created regions within an audio clip (see “Wor-
king with regions” on page 269), these can be exported as 
separate audio files. To create a new audio file from a re-
gion, proceed as follows:
1.In the Pool, select the region you wish to export.
2.On the Audio menu, select “Bounce Selection”.
A browser dialog opens.
3.Select the folder in which you want the new file to be 
created.
A new audio file is created in the specified folder. The file will have the 
name of the region and will automatically be added to the Pool.
ÖIf you have two clips that refer to the same audio file 
(different “versions” of clips, e. g. created with the “Convert 
to Real Copy” function), you can use the Bounce Selection 
function to create a new, separate file for the copied clip.
Select the clip, select Bounce Selection and enter a location and name 
for the new file.
Changing the Pool Record folder
The Pool Record folder.
In the Pool Record folder, all audio clips that you record in 
the project will end up. The Pool Record folder is indi-
cated by the text “Record” in the Status column and by a 
red dot on the folder itself, as shown in the picture above. 
By default, this is the main Audio folder. You can, how-
ever, at any time create a new Audio subfolder and desig-
nate this as your Pool Record folder. Proceed as follows:1.Select the Audio folder or any audio clip.
You cannot designate the Video folder (or a subfolder in it) as the Pool 
Record folder.
2.Select “Create Folder” on the Media or context menu.
A new empty audio subfolder appears in the Pool.
3.Select the new folder.
4.Select “Set Pool Record Folder” on the Media or con-
text menu, or click in the Status column of the new folder.
The new folder now becomes the Pool Record folder, and any audio re-
corded in the project will be saved in this folder.
Organizing clips and folders
If you accumulate a large number of clips in the Pool, it 
may sometimes be difficult to quickly find specific items. In 
such cases, organizing clips in new subfolders with suit-
able names that reflect the content can be a solution. For 
example, you could put all sound effects in one folder, all 
lead vocals in another etc. Proceed as follows:
1.Select the type of folder, audio or video, for which you 
want to create a subfolder.
You cannot put audio clips in a video folder and vice versa.
2.Select “Create Folder” on the Media on context menu.
A new empty subfolder named “New Folder” appears in the Pool.
3.Click on the name and enter an appropriate name for 
the folder.
4.Drag and drop the clips you wish to move to the new 
folder.
5.Repeat steps 1-4 as necessary.
Applying processing to clips in the Pool
You can apply audio processing to clips from within the 
Pool in the same way as to events in the Project window. 
Simply select the clip(s) and choose a processing method 
from the Audio menu. To find out more about audio pro-
cessing, see the chapter “Audio processing and functions” 
on page 238. 
						

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Undoing processing
If you have applied processing to a clip, in the Project win-
dow, the Sample Editor, or in the Pool, this is indicated by 
the red and gray waveform symbol in the Status column. 
This processing can always be undone using the Offline 
Process History, see “The Offline Process History dialog” 
on page 251.
Freeze Edits
You can use the Freeze Edits function to create a new file 
with processing applied or to replace the original with a 
processed version, see “Freeze Edits” on page 253.
Minimize File
The option “Minimize File” on the Media or context menu 
allows you to change the size of audio files according to 
the audio clips referenced in a project. The files produced 
using this option will only contain the audio file portions 
actually used in the project. This can significantly reduce 
the size of the project, if large portions of the audio files 
are unused. Therefore, the option is useful for archiving 
purposes after you have completed a project.
ÖThis operation will permanently alter the selected au-
dio files in the Pool. This cannot be undone!
If this is not what you want, you can use the option “Save Project to New 
Folder” on the File menu instead, see “Save Project to New Folder” on 
page 489. This function also has the option of minimizing files, but cop-
ies all files into a new folder, leaving the original project untouched.
Proceed as follows:
1.Select the file(s) you wish to minimize in the Pool.
2.Select “Minimize File” on the Media menu.
An alert appears, informing you that the entire Edit History will be cleared. 
Click Minimize to proceed or Cancel to stop the process. 
3.After the minimizing is finished, another alert appears, 
because the file references in the stored project have be-
come invalid. 
Click Save Now to save the updated project or click Later to proceed 
with the unsaved project. 
Only the audio portions actually used in the project remain 
in the corresponding audio file(s) in the Pool Record folder.
Prepare Archive
The option “Prepare Archive” on the Media menu is useful 
if you want to archive a project. It verifies that every clip 
referenced in the project is located in the same folder, and 
takes actions if that is not the case: 
Any files that are located outside the current project 
folder will be copied into it.
Please note that audio files that reside within the project folder will not be 
copied to the audio folder. You will therefore have to copy them there 
manually before backing up the audio folder or save them separately dur-
ing backup, see below.
If any processing has been applied, you will be asked 
whether you want to Freeze Edits.
If you do this, you don’t have to archive the Edits folder. Everything belong-
ing to the project will be contained in the project file and the Audio folder.
Once you have performed a Prepare Archive, you can copy 
the project file, the Audio folder and any other audio mate-
rial you saved in the project folder to backup disks, etc.
It is not necessary to archive the Images folder, since 
these Images can be recreated by Nuendo. You may also 
find a file with the extension “.csh” in the project folder. 
This contains image information for edited clips and other 
data that can be recreated, so it can safely be deleted.
Importing and exporting Pool files
You can import or export a Pool as a separate file (file ex-
tension “.npl”), by using the “Import Pool” and “Export 
Pool” options on the Media or context menu. 
When you import a Pool file, the file references in it are 
“added” to the current Pool.
ÖSince the audio and video files are only referenced but 
not saved in the Pool file, the Pool import is only useful if 
you have access to all referenced files (which preferably 
should have the same file paths as when the Pool was 
saved).
ÖYou can also save and open libraries. These are stand-
alone Pool files that are not associated with a project.
See “Working with libraries” on page 490.
!Video clips are always referenced and not stored in 
the project folder. 
						

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Convert Files
Selecting the option “Convert Files” on the Media or con-
text menu opens the Convert Options dialog which oper-
ates on selected files. Use the pop-up menus to specify 
which audio file attributes you want to keep and which you 
want to convert. The available settings are:
Sample Rate
Keep as is, or convert to a sample rate between 8.000 and 96.000 kHz.
Sample Width
Keep the sample width (resolution) as is, or convert to 16 bit, 24 bit or 
32 Bit float.
Channels
Keep as is, or convert the file to Mono or Stereo Interleaved.
File Format
Keep as is, or convert to Wave, AIFF, Wave 64 or Broadcast Wave format.
Options
When you convert a file, you can use the Options pop-up 
to set one of the following options regarding what to do 
with the new file:
Conform Files
By using this command, you will change all selected files 
that have different file attributes than what is specified for 
the project, to conform to this standard.
Proceed as follows:
1.Select the clips in the Pool.
2.Select “Conform Files” on the Media menu.
A dialog opens allowing you to choose between keeping or replacing the 
original unconverted files in the Pool. The following applies:
 Clip/event references in the pool are always redirected to the 
conformed files.
 If any “keep” option is selected, original files remain in the 
Project’s Audio folder and new files are created.
 If you select the “Replace” option, files in the Pool and in the 
Project’s Audio folder are replaced.
Extract Audio from Video
This Media menu item allows you to extract the audio from 
a video file on disk. It automatically generates a new audio 
clip that will appear in the Pool Record folder. The result-
ing clip will have the following properties:
It will get the same file format and sample rate/width as 
in the current project.
It will get the same name as the video file.
ÖThis function is not available for mpeg video files.
Option Description
New Files Creates a copy of the file in the audio folder and converts 
this new file according to the chosen attributes. The new 
file is added to the Pool, but all clip references will still 
point to the original, unconverted file.
Replace Files Converts the original file without changing clip refer-
ences. The references are however saved with the next 
save action.
New + Replace 
in PoolCreates a new copy with the chosen attributes, replaces 
the original file with the new one in the Pool and redirects 
the current clip references from the original file to the 
new file. This is the option to select if you want your audio 
clips to refer to the converted file, but still want to keep 
the original file on disk (e. g. if the file is used in other 
projects).