Ö Expressions within brackets are evaluated first.

If there are several layers of brackets, these are evaluated “from the inside out”, starting with the innermost brackets.

You add brackets by clicking in the bracket columns and selecting an option. Up to triple brackets can be selected.

Editing filter conditions as text

The area directly below the filter condition list shows you the current filter conditions as text. It also allows you to enter and edit the filter conditions in textual form. For tips on the syntax, please study the included presets.

Ö There is no additional functionality involved when editing filter conditions as text; it is simply another way to make settings.

When you enter something in the text field you will see the corresponding settings appear in the filter condition list (provided that you have used the correct syntax).

Selecting a function

The pop-up menu in the top left corner of the Logical Editor is where you select the function – the basic type of editing to be performed. When you select an option from the pop-up menu, the field to the right displays a comment, making it easier to see what the function does.

In the Logical Editor, processing isn’t performed until you click the Do It button. When using the Transformer MIDI effect, there is no Do It button – the current settings are automatically applied in real time during playback or live playing.

Below, the available options are listed. Note that some options are available in the Logical Editor only – not in the Transformer effect.

Delete

Deletes all events found by the Logical Editor. In the case of the Transformer, this function will remove (or “mute”) all found events from the “output stream” – the actual events on the track are not affected.

Transform

Changes one or several aspects of the found events. You set up exactly what should be changed in the action list, see “Specifying actions” on page 395.

Insert

This will create new events and insert these into the part(s) (Logical Editor) or the output stream (Transformer). The new events will be based on the events found by the Logical Editor’s filter conditions, but with any changes you have set up in the action list applied.

Another way of expressing this is that the Insert function copies the found events, transforms them according to the action list and inserts the transformed copies among the existing events.

Insert Exclusive

This will transform the found events according to the action list. Then, all events that were not found (that didn’t meet the filter conditions) are deleted (Logical Editor) or removed from the output stream (Transformer).

Copy (not available in the Transformer)

This will copy all found events, transform them according to the action list and paste them into a new part on a new MIDI track. The original events are not affected.

Extract (not available in the Transformer)

This works like Copy, but will cut the found events instead. Or in other words, Extract will transform all found events and move them to a new part on a new MIDI track.

Select (not available in the Transformer)

This will simply select all found events, highlighting them for further work in the regular MIDI editors.

Specifying actions

The lower list in the Logical Editor window is the action list. This is where you specify any changes that should be made to the found events (relevant for all function types except Delete and Select).

The handling of the action list is similar to the filter condition list, but without the brackets and booleans. You simply add lines by clicking the Add Line button to the right, and fill out the columns as required. To remove a superfluous action line, select it and click the Delete Line button.

Action Target

This is where you select the property that should be changed in the events:

Operation

This setting determines what to do with the Action Target. The options on this pop-up menu are different depending on the selected Action Target. Below, all available operations are listed:

Add

Adds the value specified in the Parameter 1 column to the Action Target.

Subtract

Subtracts the value specified in the Parameter 1 column from the Action Target.

Multiply by

Multiplies the Action Target value with the value specified in the Parameter 1 column.

Divide by

Divides the Action Target value by the value specified in the Parameter 1 column.

Round by

This “rounds” the Action Target value using the value specified in the Parameter 1 column. In other words, the Action Target value is changed to the closest value that can be divided by the Parameter 1 value.

For example, if the Action Target value is 17 and Parameter 1 is 5, the result of rounding will be 15 (the closest value that can be divided by 5). Another word for this type of operation would be “quantizing”, and it’s actually possible to use it for this, by setting the Action Target to “Position” and specifying a quantize value with Parameter 1 (in ticks, with 480 ticks per quarter note).

Set Random Values between

This will set the Action Target value to a random value within the range specified with Parameter 1 and 2.

Set Relative Random Values between

This will add a random value to the current Action Target value. The added random value will be within the range specified with Parameter 1 and 2. Note that these can be set to negative values.

For example, if you set Parameter 1 to -20 and Parameter 2 to +20, the original Action Target value will get a random variation, never exceeding ±20.

Set to fixed value

This sets the Action Target to the value specified in the Parameter 1 column.

Add Length

This is only available when Action Target is set to Position. Furthermore, it is only valid if the found events are notes (and thus have a length). When Add Length is selected, the length of each note event will be added to the Position value. This can be used for creating new events (using the Insert function) positioned relative to the end positions of the original notes.

Transpose to Scale

This is only available when Action Target is set to Value 1, and when the filter conditions are specifically set up to find notes (a “Type = Note” filter condition line has been added). When “Transpose to Scale” is selected, you can specify a musical scale using the Parameter 1 and 2 columns. Parameter 1 is the key (C, C#, D, etc.) while Parameter 2 is the type of scale (major, melodic or harmonic minor, etc.).

Each note will be transposed to the closest note in the selected scale.

Use Value 2

This is only available when Action Target is set to Value 1. If this option is selected, the Value 2 setting in each event will be copied to the Value 1 setting.

For example, this would be useful if you are transforming all Modulation controllers to Aftertouch events (since controllers use Value 2 for their amount, while Aftertouch uses Value 1 – see “Searching for Value 1 or Value 2” on page 391).

Use Value 1

This is only available when Action Target is set to Value 2. If this option is selected, the Value 1 setting in each event will be copied to the Value 2 setting.

Mirror

This is only available when Action Target is set to Value 1 or Value 2. When this option is selected, the values will be “mirrored” or “flipped” around the value set in the Parameter 1 column.

In the case of notes, this will invert the scale, with the key set in the Parameter 1 column as “center point”.

Linear Change in Loop Range

This will affect events within the loop range (between the left and right locators) only. It will create a linear “ramp” of values (replacing the original values) starting at the value in the Parameter 1 column and ending at the Parameter 2 value.

This can be used for creating linear controller sweeps, velocity ramps, etc.

Relative Change in Loop Range

As with the previous option, this will create a ramp of values, affecting events in the cycle loop range only. However, here the changes are “relative”, meaning that values will be added to the existing values.

In other words, you set up a value ramp starting at Parameter 1 and ending at Parameter 2 (note that the Parameter values can be negative). The resulting value ramp is then added to the existing values for the events within the cycle loop range.

For example, if you apply this to note velocities with Parameter 1 set to 0 and Parameter 2 set to -100, you create a velocity fade-out, keeping the original velocity relations:

Applying the defined actions

Once you have set up filter conditions, selected a function and set the required actions (or loaded a preset), you apply the actions defined with the Logical Editor by clicking the Do It button.

Logical Editor operations can be undone just like any other editing.

Ö Again, when using the Transformer MIDI effect there is no Do It button. The processing is applied to the events played back from the track (or played live “thru” the track) as soon as you set it up.

Since no existing events on the track are affected by the Transformer setting, there is no need for undo.

Working with presets

The Presets section in the bottom right section of the window allows you to load, store and manage Logical Editor presets. A preset contains all settings in the window, which means you can simply load a preset and click Do It.

Ö To load a preset, select it from the Presets menu.

Storing your own settings as a preset

If you have made Logical Editor settings that you want to use again, you can store them as a preset:

1. You can enter some explanatory text in the Comment field.

An extra description of the preset can be useful, especially if the settings are complex.

This also makes it easy to share presets with other Nuendo users, by transferring the individual preset files.

Ö The list of presets is read each time the Logical Editor is opened.

The Input Transformer

This function allows you to selectively filter out and change MIDI data coming to a MIDI track before it is recorded. The Input Transformer is very similar to the Transformer MIDI effect, but contains four independent “modules”, for which you can set up different filtering and actions if you like. You can activate any or all of these four modules.

Here are some of the things the Input Transformer allows you to do the following:

•Set up split keyboard combinations for recording left and right hands separately.

•Turn a controller like a foot pedal into MIDI notes (for playing bass drum the right way).

•Filter out one specific type of MIDI data on one MIDI channel only.

•Turn aftertouch into any controller (and vice versa).

•Invert velocity or pitch.

Again: four of these things can be done at the same time.

Opening the Input Transformer

To open the Input Transformer for a MIDI track, select the track and click the Input Transformer button in the Inspector to open the pop-up menu:

Ö To remove a preset, load it and click the Remove button.

Organizing and sharing presets

The Logical Editor presets are stored within the application folder in the Presets\Logical Edit subfolder (see also “Where are the settings stored?” on page 514). While these files cannot be edited “manually”, you can reorganize them (e.g. putting them in subfolders) like any files.

•Select Global to make Input Transformer settings that affect all MIDI inputs (and thereby all MIDI tracks).

•Select Local to make Input Transformer settings for this track only.

In both cases, the button lights up and the Input Transformer opens.

Handling the four modules

The Input Transformer is really four separate transformers, or modules.

• You select which module to view and make settings for by clicking its button in the Selected Module section.

Module 2 selected for viewing and editing.

• The checkboxes in the Active Module section determine which module(s) are active.

Here, modules 1, 2 and 4 are active.

The two modes

The Mode pop-up menu contains two options: Filter and Transform.

•In Filter mode, only the filter conditions (the upper list) are taken into account. All events matching the conditions set up will be filtered out (excluded from the recording).

•In Transform mode, events matching the filter conditions will be transformed according to the settings in the action list (the lower list).

Setting up filtering and actions

This is done just like in the Logical Editor. Here is a brief rundown:

•Click the Add Line buttons to add lines to the filter condition list or action list.

To remove a line, click it to select it and click the Delete Line button to the right.

•Clicking the columns in the filter condition list opens pop-up menus allowing you to specify the conditions to match.

•Clicking the columns in the action list opens pop-up menus allowing you to specify what should be done to the found events (when Transform mode is selected).

For detailed descriptions of the filter conditions and action columns, see “General procedure” on page 389.

•Selecting the Init option from the Presets pop-up menu will reset the selected module, removing all filter condition and target list lines.

•The Input Transformer has no “Do It” button – the settings are active as soon as you activate an Active Module checkbox.

The settings made in the activated modules will affect all MIDI data you record on the track.

Ö Closing the Input Transformer window does not turn it off – you need to deactivate all Active Module checkboxes for this!

A lit Input Transformer button in the Inspector indicates that one or more modules are active.