Blue Cat's StereoScope Multi User Manual

Blue Cat's StereoScope Multi - Real Time Multi Tracks Stereo Field Analyzer (AU, DX, RTAS, AAX and VST Plug-in)
"A unique multi-track stereo analysis tool for mixing and mastering."
Mac OS X 10.5+32/64-bit Universal BinaryWindows Vista or newerWindows x64 (64-bit)VSTVST3AAX64-bit AAXAudio UnitRTASDirectX

Introduction

Description

Blue Cat's StereoScope Multi is a unique tool to compare the stereo image of several tracks in real time. It is the ideal solution for mixing: you can actually see which part of the stereo field every single instrument uses. It can also be used to analyze an effect chain and see how audio effects influence the stereo image of your content.

This plug-in is based on the same stereo analysis algorithms as Blue Cat's StereoScope Pro analysis plug-in, and the instant, peak or average responses of several audio tracks can be displayed on the same graph (the plug-in supports up to 16 curves). The same zooming capabilities and coordinates display let you exactly measure the characteristics of the stereo image for each audio track. The advanced routing capabilities let you define different settings for each track, and thus adapt the parameters for each audio signal you want to analyze. Our multiple tracks audio analysis tutorial shows you how to use this multitrack analysis feature.

Thanks to Blue Cat's skinning language support and the included window opacity management feature, you can adapt the plug-in user interface to your personal needs and enhance your workflow.

If you are looking for a stereo field analyzer specialized in single track analysis with audio to MIDI capabilities, check our Blue Cat's StereoScope Pro plug-in.

Blue Cat's StereoScope Multi - Collapse the controls and select the smallest display size to save real estate on your screen.

Blue Cat's StereoScope Multi - compute and visualize the difference between the stereo field of several tracks.

Blue Cat's StereoScope Multi - Enlarged display lets you increase the level of details. Blue Cat's StereoScope Multi - Real Time Multi Tracks Stereo Field Analyzer (AU, DX, RTAS, AAX and VST Plug-in)

Features

Main Features:

  • Multiple tracks real time stereo field analyzer: visualize and compare the stereo image of several audio tracks on the same screen.
  • Unique data sharing technology with multi-core processors support.
  • Compute and display the difference between curves for easy response curve measurement.
  • Animated zoom for all views.
  • Precise measurement capabilities.
  • Easy phase cancelation and mono compatibility issues detection on multiple tracks or within an effect chain.
  • Instant, peak and average curves display for each track.
  • Save the curves for easy A/B comparison.
  • Opacity control for the user interface.
  • Custom absolute and relative threshold control.

Blue Cat Audio Standards:

  • Available as: Mac-AAX, Mac-AU, Mac-RTAS, Mac-VST, Mac-VST3, Win-AAX, Win-DX, Win-RTAS, Win-VST, Win-VST3, Win x64-AAX, Win x64-DX, Win x64-VST, Win x64-VST3.
  • Native DSP code for optimal performance.
  • Full MIDI control and automation support with silent, zipper-free parameters update, advanced response control and MIDI Learn.
  • No CPU load on idle: when the plug-in is fed with silence, the processing smoothly shuts down, to optimize the CPU usage of your Digital Audio Workstation.
  • Customizable user interface with transparency management .
  • Smooth Bypass: activate/deactivate the plug-in with absolutely no noise.
  • Undo/Redo.
  • Full featured integrated presets manager.
  • Copy/paste the state of the plug-in between instances using the system clipboard.
  • Any sample rate supported.

System Requirements

Windows

  • An SSE2-enabled processor (Pentium 4 or newer).
  • Microsoft Windows Vista, Windows 7, 8 or 10.
  • Any DirectX / VST / RTAS / AAX compatible host software (32 or 64 bit).

Mac OS X

  • An Intel processor.
  • Mac OS Sierra (10.12), Mac OS X El Capitan (10.11), Mac OS X Yosemite (10.10), Mavericks (10.9), Mountain Lion (10.8), Lion (10.7) , Snow Leopard (10.6), or Leopard (10.5).
  • Any VST / Audio Unit (32/64-bit) / RTAS / AAX compatible application.

For more information about supported platforms, see our FAQ.

Demo Limitations

  • Three instances of the plug-in per session.
  • The plug-in is frozen for a few seconds every 40 seconds.

Installation

The plug-ins versions cannot be run standalone: they require a host application (see the System Requirements chapter for more information). Depending on which host application you use, you might need to install the plug-ins in different locations.

Before installing one of the plug-in versions, you should close all your host applications.

Windows

Install

All versions of the plug-in provide an installation program. Follow the steps of the wizard to install the software on your machine. During the installation you will be asked where you want the software to be installed. For the VST version, you should install the plug-in inside the VST plug-ins folder used by your host application(s). The default path set in the installer should work for most applications, but you should check your host software documentation to know where it looks for VST plug-ins. For other plug-in types, you should just use the standard path.

Some applications will not automatically rescan the new plug-ins, so you might have to force a refresh of the plug-ins list.

Upgrade

When a new version of the software is released, just launch the new installer: it will update the current installation.

Uninstall

To uninstall the software, simply launch the "Uninstall" program that is available in the start menu or in the configuration panel. It will take care of removing all files from your computer.

Mac

Install

On Mac the plug-ins are available as drive images. After download, double click on the file to open it. You can then drag and drop the file(s) to the shortcut that is provided within the image. It will install the software for all users on the machine.

In case you do not have admin rights on your Mac or if you want to install the software to another directory, just copy the files to the appropriate location. If required, more information is available in the README.txt file that is included in the package.

Upgrade

When a new version of the software is released, open the new image and copy the files over the previous ones. The new version will replace the older one.

Uninstall

To uninstall the software, simply remove the component(s) from the folder where you have copied them during install (move them to the trash).

If you want to completely remove all settings and configuration files, you can also remove these additional directories that may have been created on your computer:

  • ~/Library/Preferences/Blue Cat Audio/[Plug-in name and TYPE], where TYPE is VST, AU, RTAS or AAX: global preferences.
  • ~/Library/Preferences/Blue Cat Audio/[Plug-in name]: license information
  • ~/Documents/Blue Cat Audio/[Plug-in name]: user data, such as presets, additional skins and user-created plug-in data.

Please be aware that these directories may contain user data that you have created. Remove these directories only if you do not want to reuse this data later.

First Launch

Blue Cat Audio plug-ins cannot be run standalone, they require a host application (see the System Requirements chapter for more information). Some host applications will require you to scan the plug-ins before they are available in the application.

If the plug-in is not available in the application, please check that it has been installed in the appropriate directory (with no host application running), and that the host application has scanned it.

Using Blue Cat's StereoScope Multi

The User Interface

Note: The main toolbar, menus and basic features available with all our plug-ins are detailed in the Blue Cat Audio Plug-ins Basics section.

Overview

The StereoScope Multi plugin is bundled with a single skin. You may want to create your own or download new ones from www.bluecataudio.com. The included skin is composed of three panels:

  • The main view where you can see the stereo image of the curves shared by all the instances of the plug-in.
  • The diff pane when you can compare several curves by visualizing their difference.
  • The routing pane where you can choose which analysis curve you want to display and share with other plug-in instances.

The main elements of the user interface are described below:

Click here for full size screenshot
  1. Show/Hide the controls pane (A): The controls pane can be collapsed to gain real estate on the screen. This changes the size of the user interface of the plug-in. Some host applications may require you to close and reopen the user interface of the plug-in to take this update into account.
  2. Choose between the main and difference panes (to be displayed in (B)).
  3. Choose the display mode (single or dual screen, and row or column). In dual screen mode, you can show both the main and the diff panes at the same time.
  4. Select the screen size (small, medium or large).
  5. Show the routing matrix to select and rename the curves routed from this instance of the plug-in.
  6. Synchronize all instances. This is particularly useful when using the difference view: you may need to synchronize the multiple instances of the plug-in so that they compute the stereo field distribution at the exact same time, to improve the accuracy of the difference computation.
  7. You can freeze all curves (for all instances) in order to get a snapshot of all the curves.
  8. Reset the average or peak curves for all instances.
  9. Select the pan law used for the stereo field distribution computation for the current instance. This lets you match the values that can be read on the x-axis of the graph with the pan pots of your digital audio workstation.
  10. Curves display settings:
    • Filled: show filled curves. This option may become CPU-heavy when you have multiple curves to display with a large screen setting.
    • Antialias: antialiased curves look better (smoother), but you may want to disable this option if you prefer "old style" display.
    • Name: display the name of the curve on the graph (overlay).
    • Show List: display the list of available curves at the right of the current pane.
  11. These two sliders let you control the x and y zoom for the graphs in both views. Once zoomed, you can drag the rulers with the mouse (click on the vertical or horizontal ruler when the cursor is a small hand and drag to move in the graph). It is also possible to zoom the screen by selecting an area with the mouse. You can then right click on the graph to unzoom.
  12. At any time, right click on the graph to unzoom.
The main parts of the user interface are the following:
  • (A) The controls displayed at the bottom of the user interface let you modify the parameters for the audio analysis of the current instance or all other instances at the same time.
  • (B) Current display (main or diff pane).
  • (C) This is the place where the coordinates of the mouse cursor are displayed when the mouse is over a graph.

Routing Pane

In order to route curves to the display and share them among instances, you need to open the routing pane (by clicking on the “Routing” button). It is displayed by default when you first open the plug-in.

  1. List of available curves for the current instance. These are the curves you can route to a shared curve numbered from 1 to 16.
  2. Select a shared curve slot to display and share the curve corresponding to the row.
  3. When a slot is not available it means that it is already in use by this instance or another instance. You can click on the 'X' button to free the slot occupied by the curve corresponding to the row.
  4. Use this button to reset all curves affectations for this instance of the plugin.
  5. You can assign a name to each analysis curve. It will be displayed in the main pane when the curve is connected to a bus:

Main Display

Click here for full size screenshot
  1. Select the shared curves to display. No curve will be shown on this view until you select the curves you want to share in the routing pane. The curve names can be customized (see the routing pane).

  2. The four “A B C D” buttons let you store the curve to one of the proposed memory slots. The curves stored into these slots can be shown/hidden with the buttons available in (4).

  3. Show/Hide curves stored in memory.

  4. Both the position/value pair representing the coordinates of the mouse cursor are displayed when the mouse is hovering over the graph.
  5. This slider lets you change the absolute threshold for the current instance (see the parameters section).

Diff View

This view shows differences between selected curves. It is very handy to compare several stereo field measurements in real time. For example you can have an instance compute the average stereo spread of a reference commercial track and compute its difference with the average stereo field of your current mix. The resulting difference curve will show you how you need to modify the stereo distribution of your mix so that it “sounds like” your commercial reference, as far as stereo distribution is concerned.

Click here for full size screenshot
  1. Show/Hide a difference curve.
  2. Select first curve for the difference.
  3. Select second curve for the difference.
  4. Store the difference to one of the memory slots.

  5. Show/hide curves stored in memory slots.

The resulting curve shows the difference between the first and the second curves. This means that when the difference curve is above 0, the first curve is greater than the second.

For a more accurate visualization it is recommended to compare curves that have similar precision settings. When comparing different tracks you will usually not be interested in absolute values but in the shape of the curve: both tracks may have different absolute levels.

Controls

The settings described in the parameters section are available at the bottom and top right of the user interface. The absolute threshold can also be controlled by the vertical slider on the right of the display.


Apart from the reset buttons, all these parameters control the analysis for the current instance of the plug-in only. To modify the settings for other instances, you can either push the values used in the current instance to all others, or open the user interface of each other instances you want to modify.

It is possible to push the value for each parameter to other instances of the plug-in independently (using the small red arrow close to the control) or to push all the settings of the current instance to all others with the large blue arrow on the left of the controls pane.

Memory Curves

As shown earlier, it is possible save several types of curves in memory slots. Clicking on the little blue arrow below each memory slot opens a menu to manage these curves: they can be copied and pasted to other slots (even in another application), or be saved as files to be reloaded later:

Memory slot menu

This lets you make multiple measurements and reuse them elsewhere as references.

Screen Configurations

The plug-in is setup by default to work in single screen mode, but there are two other modes available, using the display mode button:

Dual screen / column mode

Dual screen / row mode

The various elements of the user interface (knobs, sliders, buttons...) are simple and intuitive to operate, but more information about how to interact with them is available in the "Plug-ins Basics" chapter of this manual.

Operation

The Principle

Blue Cat's StereoScope Multi uses our unique data sharing technology to share complex information between several instances of the plugin. This lets you visualize the stereo spread of several audio tracks in the same plugin instance:

Each analyzer is both able to produce and display shared curves. With the 'Diff' view it is now possible to compute and display the difference between several curves:

Procedure

In order to see and compare the stereo contents of several instances you should follow these steps:

  • Insert the plugin on one or several audio tracks in your sequencer
  • For each instance, open the routing pane and select the curves you want to see and share.
  • Adjust the settings for the audio analysis in each instance.
  • Open the user interface of an instance of the plugin and select the shared curves you want to see.
  • Watch the result!

For more information about how to use this plugin in your host application, have a look at the Blue Cat's StereoScope Multi Tutorials.

Blue Cat Audio Plug-Ins Basics

This chapter describes the basic features that are common to all our plug-ins. If you are already familiar with our products, you can skip this part.

User Interface Basics

About Skins

Like all Blue Cat Audio plug-ins, Blue Cat's StereoScope Multi uses a skinnable user interface. It means that the appearance and behavior of the user interface can be entirely customized.

Especially with third party skins, the experience may be quite different from the one offered by the default skins that we provide. However, our plug-ins and our skinning engine have several standard features that will be available whatever your favorite skin.

More information about custom skins can be found in the skins section.

The Main Toolbar

In most skins, an optional toolbar at the top of the user interface gives you access to the main options and settings of the plug-in:

Presets Area

At the center of the toolbar, you can see the current preset area (the "Default Settings" box). It displays the name of the current preset, with a "*" at the end if it has been modified since loaded.

The arrows on the left and right let you navigate thru the (factory and user) presets available for the plug-in.

Clicking on the preset name opens the presets menu which lets you manage the presets of the plug-in.

Commands

The icons in the toolbar give you access the to the following commands that are detailed in the next paragraph:

Icon Name Function
Menu Open the main menu
Undo Undo
Redo Redo
Manual User Manual
About About

The Main Menu

The main menu is available from the main toolbar, or if you right click anywhere on the background of the plug-in:

  • Presets: opens the presets menu to manage presets.
  • Preset Skin: opens the skins menu to choose the skin for the current preset and manage alternative skins for the software.
  • Undo/Redo: undo or redo the latest modifications. This includes all changes made to the current preset settings such as MIDI or automation preferences.
  • Presets Settings: open the presets settings window. It lets you change the skin, MIDI and automation settings for the current preset.
  • Global Settings: open the global settings window. It lets you change the skin, MIDI and automation settings that are used by default in all instances of the plug-in (if not overridden by the current preset).
  • User Manual: open this user manual.
  • Check for Updates: opens up our website to let you check if any update for this software is available.
  • Get More Skins: get more skins for this software.
  • Legal Information: browse licensing and misc legal documents.
  • About: displays the “about” dialog box.

The Title Bar

In most skins, an icon bar is located below the main toolbar. The first commands are the same for all plug-ins:

From left to right:

  • Smooth Bypass: smoothly bypass the plug-in (just like a power button).
  • Window Opacity: reduce the opacity value by turning the knob, and make the plug-in window transparent. (the result may depend on the host application).
  • Show/Hide MIDI and Automation Control Settings: show/hide the buttons that give access to direct MIDI/Automation setup for each parameter in the user interface. This button will show or hide dropdown menu buttons that popup a MIDI/Automation setup menu described here.

Controls

Examples

Here are a few examples of typical controls you will encounter in the user interface of our plug-ins:

slider slider knob button Text control

Interacting with Controls

You can interact with the controls of the plug-in interface either with the mouse or the keyboard.

Setting the keyboard focus on a control (so that it responds to key strokes) may be automatic (when you pass the mouse over it it gets focus) or manual (you have to click on the control to set the focus on it). Note that all host applications behave differently regarding keyboard handling. In some applications you may not be able to use all keys described later in this manual to interact with our plug-ins. It is usually made obvious to you to know the active surfaces of the skin (the places where you can click with the mouse): the mouse cursor usually changes when you can do something on a control. In the default skins delivered with the plug-in, the cursor changes to a small hand or an arrow to tell you when your mouse is over an active control.

Mouse

Various mouse movements will let you interact with the controls:

Mouse Interaction Action
Left Click Acquire focus and start dragging or push (button)
Left Click + Alt Key Set the value to default
Left Double Click Acquire focus and launch the “fine tuning” edit box (except button):
Right Click Set the value to default
Mouse Wheel Increment or decrement the position (focus required)
Mouse Drag Change the control position depending on mouse movement (except button)

Keyboard

All control widgets support the following keys (note that some of them are caught by the host and thus never forwarded to the control. For example in Steinberg Cubase SX you cannot use the arrow keys to control the plug-in):

Keys Common to All Controls

Key Action
Up Arrow Small increment of the position (up or right)
Down Arrow Small increment of the position (down or left)
Left Arrow Same as Down Arrow
Right Arrow Same as Up Arrow
Page Up Large increment of the position (up or right)
Page Down Large decrement of the position (down or left)
+ Small increment of the value of the control
- Small decrement of the value of the control
d Set to default value (same as mouse right click)
e Opens the 'fine tuning' window to precisely set the parameter:
SHIFT When the key is down, the fine tuning mode is on, and you can modify the value with better precision when moving the mouse, the mouse wheel or using the keyboard. Just release the key to get back to the normal mode.

Keys Specific to Buttons

Key Action
Enter Pushes the button

Presets

To get started with the plug-in and discover its capabilities, a couple of factory presets are provided. You can also save your own presets and recall them later for other projects. Our plug-ins propose a full-featured preset manager to let you save, browse, organize and recall its presets.

The Presets Menu

The presets menu can be opened from the main menu or the main toolbar. It displays the list of presets available for the plug-in as well as commands to load, save or organize presets:

  • Factory Presets: shows the list of factory presets delivered with the plug-in.
  • "Folder A" to "User Preset Z": user presets and categories.
  • MIDI Program Change: activate MIDI Program Change support (see below).
  • Load: load preset from file.
  • Save: save current state to last loaded user preset.
  • Save As: save current preset to a file.
  • Copy copy preset to the system clipboard.
  • Paste paste preset from the system clipboard, if available.
  • Save As User Default: save the current state as the default preset. This preset is used every time a new instance of the plug-in is created.
  • Clear User Default: reset the default preset to its factory state: this makes the plug-in forgets the custom settings you might have saved as a default preset.

More about Presets

There are two types of presets: factory presets (read only) that are provided with the plug-in, and user presets that can be created and stored by the user.

The user presets are stored in a subdirectory of the documents folders of your profile ("Documents" on Mac, and "My Documents" on Windows): Blue Cat Audio/[Plug-in Name]/Presets. Each preset is stored as an individual file. You can create folders and subfolders in the Presets directory to classify your presets, as shown in the example below:

If you save a preset named "Default" in the root Presets directory, it will override the factory default preset (that's what "Save As Default" does). To restore the factory default preset, you can just remove this file or use the "Reset Default" command.

MIDI Program Change

It is possible to load presets remotely using MIDI "Bank Select" and "Program Change" messages. To enable this feature, select a MIDI channel to receive the events from in the MIDI Program Change menu item from the presets menu:

This setting is a global preference (shared accross all instances of the plug-in). Once activated, the plug-in menu will display the bank number followed by the preset number for each preset:

Every root folder is considered as a new bank, starting with the factory presets (bank 0). Program and bank numbers may change while you add folders and presets, so you should be careful when naming them if bank and program numbers matter to you. It is recommended to use folders to make this task simpler. As a side note, sub folders do not define additional banks (all presets contained in sub folders are associated with the current bank.

As specified by MIDI, bank select messages are not used until a program is actually selected.

MIDI Implementation note: the software supports all types of Bank Select methods. You can use either MIDI CC 0 or MIDI CC 32 to select banks. If both are used simultaneously, they are combined together so that you can use more banks (in this case CC0 is LSB and CC32 is MSB, and actual bank number is 128*CC0+CC32).

MIDI and Automation Control

Blue Cat's StereoScope Multi can also be remotely controlled via MIDI using MIDI CC ("Control Change") messages or automation curves, if your host application supports it. It is possible to customize the channel, control numbers, range and response curve used for each parameter in the settings panel available from the main menu (see the Plug-in Settings chapter for more details).

MIDI and Automation Settings Menu

Most skins also provide the ability to change MIDI and automation settings for each parameter directly in the main user interface. When this feature is activated using the corresponding title bar button, dropdown menu buttons appears next to main controls:

Clicking on this button shows the MIDI/Automation settings menu:

  • MIDI Learn: launches MIDI learn mode for the control: touch your MIDI controller and the control will learn from it the MIDI channel and CC number. To end the learn mode, reopen this menu and deselect the option.
  • MIDI Unlearn: deactivates MIDI control for this parameter.
  • Settings: launches the advanced settings panel described below. This controls the settings for the current preset.

Advanced MIDI and Automation Settings

You can completely customize the way the plug-in is controlled by automation and MIDI. For a global view of all parameters at a time, you can use the Plug-in Settings window for the current preset which is available from the main menu.

MIDI Settings:

  • Enable MIDI: enable/disable the MIDI control of the parameter.
  • Channel: MIDI Channel for the parameter control. If set to 0, the plug-ins will accept Control Change Messages from all MIDI Channels (MIDI Omni mode).
  • CC: Control Change Number.
  • Learn: click on this button to activate the MIDI learn functionality. When it is activated, you can move your MIDI controller, and the plug-in will automatically set the MIDI Channel and CC Number.

MIDI and automation settings:

  • Response: response curve of the MIDI or automation control: from very fast to slow control.
  • Min: minimal value of the parameter when MIDI controlled or automated.
  • Max: Maximum value of the parameter when MIDI controlled or automated.

Note: if the Min value is higher than the Max value, the response curve will be reversed: increasing the control value will decrease the parameter value.

Note: if you double click on the parameter text control boxes for the max and min values, a “fine tuning” edit box will appear and let you change the min and max values with more precision:

More

Check our online tutorial for more screenshots and more examples of our plug-ins user interfaces.

Blue Cat's StereoScope Multi Parameters

All parameters described below can be automated and controlled via MIDI if your host application supports it. You can precisely define this behavior in the settings panels described later in this manual.

The input parameters of this plug-in are described below. They affect the audio analysis for the current instance of the plugin. Each instance has independent parameters for the audio analysis.

Param id

Name

Unit

Description

dsp.input0

Bypass


Bypass the plugin.

dsp.input1

Precision

%

Precision of the stereo field analysis. The higher the setting, the higher the resolution, and the higher the CPU consumption

dsp.input2

Attack

ms

Attack time for the stereo image envelope follower.

dsp.input3

Release

ms

Release time for the stereo image envelope follower.

dsp.input4

Peak Reset

Hz

Rate of the peak curve reset. If set to 0, the peaks will never decrease and will represent the maximum value.

dsp.input5

Abs Threshold


Absolute threshold for stereo image display. The values below this threshold are set to 0

dsp.input6

Rel threshold

%

Relative threshold for stereo image display (percentage of the maximum value). The values below this threshold are set to 0.

dsp.input7

Gain

dB

Gain applied to the audio signal before the analysis takes place. Can be useful when analyzing signals with low levels.

dsp.input8

Reset Peak


Command to reset peak curves (value changes are considered as reset commands)

dsp.input9

Reset Average


Command to reset average curves (value changes are considered as reset commands)

dsp.input10

Pan Law


Specify the pan law for the stereo field analysis. This lets you match the values that can be read on the x-axis of the graph with the pan pots of your digital audio workstation.

P-Cosine: projected cosine law (corresponds to a sine-cosine pan law projected from a circle to a linear axis) / Cosine: sine-cosine pan law / Linear.

Blue Cat's StereoScope Multi Curves

The StereoScope Multi plug-in provides visual feedback about the stereo image of the audio signal thanks to output curves that can be routed to one of the 16 display curves.

Curve id

Name

Description

dsp.output_curve0

Instant Stereo Image

Instant stereo content of the audio signal.

dsp.output_curve1

Peak Stereo image

Maximum value of the stereo image over time.

dsp.output_curve2

Average Stereo Image

Average value of the stereo image over time.

Plug-in Settings

In addition to the controls offered in the main user interface, Blue Cat's StereoScope Multi has various settings that let you fine tune the behavior of the plug-in. You can choose to change these settings either for the current preset or globally for all instances of the plug-in.

The Global Settings Window

The settings available in this window apply to all instances of the plug-in, for all presets, if not overridden in the presets settings. Consider these settings as “default” settings.

General

You can change the default skin for all instances of the plug-in: write the skin file path in the text edit box or click on the button to open a file chooser dialog. If you have several instances of the plug-in opened in your session, you will have to re-open the user interfaces of these plug-ins to see the skin change.

Click here for full size screenshot

The output data refresh rate can also be customized for all instances of the plug-in. It controls the refresh rate of non-audio data produced by the plug-in (parameters, curves...). It also controls the refresh rate of output MIDI CC messages or output automation data. The higher the refresh rate, the better precision, but also the higher cpu usage (some host applications may also have trouble recording MIDI data at high refresh rates). The default value is 50 Hz.

Global Control Input Settings (MIDI and Automation)

The plug-in offers a couple of settings that affect the way it is controlled by MIDI messages or automation. While the first settings only apply to MIDI control, the "Control Response", "Min" and "Max" settings apply to both automation and MIDI control.

For each parameter you can define a default MIDI channel and CC number. You can then control the plug-in with an external MIDI controller or one of our plug-ins that generate MIDI messages.

The settings below are available for each plug-in parameter.

MIDI Settings:

  • Enable MIDI: enable/disable the MIDI control of the parameter.
  • Channel: MIDI Channel for the parameter control. If set to 0, the plug-ins will accept Control Change Messages from all MIDI Channels (MIDI Omni mode).
  • CC: Control Change Number.
  • Learn: click on this button to activate the MIDI learn functionality. When it is activated, you can move your MIDI controller, and the plug-in will automatically set the MIDI Channel and CC Number.

MIDI and automation settings:

  • Response: response curve of the MIDI or automation control: from very fast to slow control.
  • Min: minimal value of the parameter when MIDI controlled or automated.
  • Max: Maximum value of the parameter when MIDI controlled or automated.

Click here for full size screenshot
(generic screen shot, does not correspond to the actual plug-in parameters)

Note: if the Min value is higher than the Max value, the response curve will be reversed: increasing the control value will decrease the parameter value.

Note: if you double click on the parameter text control boxes for the max and min values, a “fine tuning” edit box will appear and let you change the min and max values with more precision:

The Current Preset Settings Window

In this window you can change the settings for the current preset of the current instance of the plug-in only.

Preset Skin

You can choose to use the global skin setting or to change the skin for the current preset. This way you can have different skins for different instances of the plug-in in the same session in order to differentiate them.

Click here for full size screenshot

Preset Control Input Settings (MIDI and Automation)

Use the global settings or override them for the current preset. The parameters are the same as for the global input settings.

Click here for full size screenshot
(generic screen shot, does not correspond to the actual plug-in parameters)

About Skins

Blue Cat's StereoScope Multi integrates Blue Cat's skinning engine that allows you to customize the user interface. You can download alternate skins for your plug-in at the following address:

http://www.bluecataudio.com/Skins/Product_StereoScopeMulti

If you don't find a skin that fits your need or if you want a custom one, you can choose to create your own skin.

Choosing the Skin

There are two ways to select the skin of your plug-in: you can change the default (or 'global') skin, or change the skin for the current preset only (either in the preset settings page or from the main menu). The global skin applies to all plug-in instances (choose this one if you want to use the skin used by default, regardless of the session or preset), whereas the current preset skin only applies to the current preset of the current plug-in instance (use this one if you want to change only the skin for the current session/preset).

Note: in some host applications, the plug-in window won't resize automatically when you choose a skin with a different size. In this case, just close the window and re-open it: it will be displayed with the right size.

The Skins Menu

The skins menu can be opened from the main menu. It displays the list of skins available for the plug-in as well as commands to manage the skin used by default when no preset skin has been selected:

  • First Section - Factory Skins: shows the list of factory skins delivered with the plug-in ("Default" and "Light" in this example).
  • Second Section - User Skins: shows the list of user skins that have been installed in the Documents Skins folder for the plug-in (see below).
  • Use Global Skin: use the global skin for the current preset/session (unloads any custom skin previously selected for the current preset).
  • Load: opens a file browser dialog to manually select the skin from the file system.
  • Save As Global Skin: use the current preset skin as the global skin (loaded by default if no preset skin has been defined).

Installing User Skins

To select user skins directly from the skins menu, install them in the "Skins" directory available in the plug-in's documents folder:

[Your Documents Folder]/Blue Cat Audio/[Plugin Name]/Skins/

The skin engine will scan this folder for new skins (xml files) and display them in the menu. The skin files should be in the root skins folder or in a subdirectory inside this folder: subdirectories are not scanned recursively.

Other Methods to Select Skins

You can also select the skins in the settings panels available from the main menu:

The global skin (used by default if no preset skin has been selected) can be changed in the global settings pane. The current preset skin can be changed in the preset settings page .

Create a Custom Skin

You can create custom skins for your plug-in in order to adapt it to your exact needs. You can change its look and feel and make it completely integrated in your virtual studio!

Just read the Blue Cat's Skinning Language manual and download the samples for the tutorial on http://www.bluecataudio.com/Skins. You can get ready to create your own skins in a few minutes. You can then share your skins on our website.

More...

This manual only covers the basics of Blue Cat's StereoScope Multi. Our website offers many additional resources for your Blue Cat's StereoScope Multi plug-in and is constantly updated, so keep an eye on it! You will find below a few examples of available resources.

Tutorials

Many Tutorials are available on our website. They cover a wide range of topics and host applications.

You can find here a list of tutorials related to the Blue Cat's StereoScope Multi plug-in.

Extra Skins

We encourage our customers to propose their own skins for our products and we often propose alternative skins to let you choose the one that best suits your needs. You can check Blue Cat's StereoScope Multi skins page to get the latest skins.

Updates

As you can see in the history log below, we care about constantly updating our products in order to give you the latest technology available. Please visit our website often to check if Blue Cat's StereoScope Multi has been updated, or subscribe to our Newsletter to be informed of the latest news about our products.

Note: minor version updates are available from the same location as the original full version download (link received by email upon purchase). The demo version publicly available on our website will not let you register.

You can also follow us on twitter and facebook for almost real time updates notification, and subscribe to our YouTube channel to watch the latest videos about our software.

Versions History

V2.2 (2016/03/03)

  • VST3 plug-in format support.

V2.1 (2015/09/07)

  • Save each memory curve as a file that can be reloaded later as a reference.
  • Copy and paste memory curves between instances using the system clipboard.
  • Last loaded preset can now be saved directly from the presets menu without having to select the file.
  • Fixed demo version popup window freezing Pro Tools in some situations.
  • Presets can now be selected using MIDI Program change and bank select messages (can be activated with the presets menu/MIDI Program Change item).
  • Factory and user skins can now be selected directly from the plug-in menu.

V2.03 (2014/01/09)

New Features:
  • Copy/paste the plug-in's current state from the presets menu using the system clipboard.
Improvements:
  • Reduced the plug-in's memory usage.
  • Windows VST Installer now remembers where the plug-in was initially installed to simplify upgrades.
  • (Mac) plug-in version number is now available when using "Get Info" in the Finder.
  • (Mac) Improved display of Audio Unit parameters in most host applications.
Bug Fixes:
  • Fixed window frame not showing with Cubase 7.5 (32-bit) on Mac.
  • (Mac) About window does not show up first in the corner of the screen anymore.
  • (Win) Alt-Click on a control now resets the value to default in Pro Tools, as expected.
  • Fixed version number reported to host application for VST and Audio Unit versions.

V2.02 (2013/06/21)

  • 64-bit AAX support for Pro Tools 11.

V2.01 (2013/05/14)

Bug fixes:
  • Fixed AAX version not showing up in Pro Tools 10.3.5 on Windows.
  • (RTAS) Fixed parameters control with EUCON control surfaces in Pro Tools.
  • Fixed user interface issues in Final Cut Pro X.
  • Fixed compare button issues in Pro Tools.
  • Fixed MIDI and automation settings that were reset when using undo.
  • Mac-VST: Fixed window resize issues on Cubase and Nuendo (Mac).
  • Mac: Fixed user interface display issues when first opened in Ableton Live 9.
  • Mac: Control MIDI settings dialog now brought back to front when already opened in the background.
  • Mac: fixed copy/paste keyboard shortcuts for plug-in registration that did not work in some hosts.

V2.0 (2012/11/09)

New Features:
  • Brand new fully customizable user interface:
    • New look and feel.
    • Show/hide what you need.
    • Curves names can now be displayed on the graph (overlay).
    • Single or multiple displays modes.
    • Multiple display sizes
    • Improved readability.
    • Animated transitions.
  • All instances can now be forced to synchronize.
  • New integrated presets manager:
    • Load/save presets from the plug-in's user interface.
    • Organize presets with folders.
    • Customize the default preset.
    • Exchange presets easily.
  • Automation range and response curve can now be customized for each parameter.
  • Automation and MIDI settings (channel, MIDI learn etc.) are now accessible from the main user interface.
  • AAX plug-in format is now also supported on Windows (Pro Tools 10.2 required).
Improvements:
  • Improved Graph rulers display when zoomed.
  • Routing matrix automatically displayed when opening the plug-in for the first time for easier setup.
  • New presets to make setup easier.
  • Plug-in name has been shortened for a clearer display in mixer view for most host applications.
  • The windows installer now automatically detects the most appropriate VST install path.
  • License is now shared between plug-ins types (register only once for all formats).
  • Added new presets.
  • Improved value display in fine edit window.
Optimizations and Performance Improvements:
  • Reduced VST plug-in loading time.
  • Improved parameters precision (now stored as 64-bit).
  • More compact presets format (uses less space and loads faster).
  • Smaller binaries on Mac (dropped PowerPC support).
Bug Fixes:
  • Fixed presets-related crashes in Cubase on Mac.
  • Fixed user interface display issues in Wavelab on Mac.
  • Fixed keyboard stealing issue in Digital Performer 7 on Mac.
  • AAX/RTAS on Mac: Fixed audio engine freeze or error issue with Pro Tools on some Mac configurations.
Note: this new version can be installed side by side with the previous version for backward compatibility reasons. Installing this new version won't break your previous projects.

V1.91 (2011/07/11)

  • Output data rate can now be customized, from 20 to 500 Hz.
  • Increased the default output data rate (from 20 to 50 Hz) for more precise display.
  • Several pan laws can now be selected to match your preferences.
  • Windows: improved settings dialog loading time.
  • Mac: user interface performance improvement (up to 30% lighter on cpu).

V1.9 (2011/05/23)

  • Difference curves can now be saved for easier comparisons and stereo spread matching tasks.
  • Windows uninstaller now proposes to remove preferences as an option.
  • Misc minor user interface and windows installer changes.

V1.82 (2011/02/10)

  • Fixed keyboard focus stealing issue in Pro Tools and several other host applications.
  • Controls visibility is now persistent.

V1.81 (2010/11/29)

Fixed incompatibility issues with older presets in the previous version.

V1.8 (2010/11/18)

  • Analysis parameters can now be pushed from one instance to others to simplify the workflow.
  • 64-bit Mac VST support.
  • User interface enhancements:
    • Improved readability.
    • Zooming is now animated.
    • Controls can be collapsed to reduce the size of the user interface and focus on the analysis.
    • Improved consistency with our other analysis tools.
    • Drag the rulers to move the curve when zoomed (can keep measurement/selection mode and still drag the curves).
  • Improved synchronization of curves within a single instance.
  • Default release time is now shorter.

V1.7 (2010/06/19)

Performance Improvements (all platforms):
  • Improved user interface performance and increased graphs display refresh rate.
  • Improved signal processing performance (up to twice faster on some systems!). The plug-in now requires a processor supporting SSE2.
  • Reduced memory footprint.
  • Faster skin loading.

V1.61 (2010/02/25)

  • Demo version now displays a nag screen only once per session, and only when opening the user interface of the plug-in.
  • Fixed a crash on Mac and 64-bit Windows that randomly occured when opening and closing the user interface multiple times.
  • Mac: fixed crash with demo version in Ableton Live 8.1.1.

V1.6 (2010/02/15)

  • RTAS plugin format support for Pro Tools (Mac and Windows).
  • 64-bit applications support for Windows DX and VST under Windows x64.
  • Mac AU 64-bit format support (compatible with 64-bit Logic 9.1 on Snow Leopard)
  • Fixed MIDI learn issues.
  • Space bar does not trigger plug-in buttons anymore (avoids conflict with transport control in most applications).
  • Mac: fixed user interface crashes in some hosts under Snow Leopard.
  • Mac: fixed keyboard/mouse focus issues in some hosts.
  • Mac: fixed user interface crashes in some hosts, when used with particular display settings.
  • Mac: fixed multiple screens issue.
  • Mac-AU: fixed user interface resizing issue when changing skin in some hosts (Logic).
  • Mac-AU: fixed settings lost issue when doing offline rendering in some applications.

V1.51 (2009/05/05)

Mac VST update: fixed incompatibility issues with Cubase 5 on Mac.

V1.5 (2009/02/27)

  • Mac Audio Unit support.
  • Improved Performance.
  • New Windows Installer (you should uninstall any previous version before installing this new one).
  • New documentation format.

V1.4 (2008/12/10)

  • Now available for Mac in VST format.
  • Minor user interface changes.
  • (Bug fix): keyboard shortcuts are no longer forwarded to host application when entering the names of the curves in edit boxes.

V1.3 (2008/05/26)

  • New diff view to compute and visualize the difference between several stereo images.
  • The graphics rendering has been improved for smoother analysis curves display in some hosts (such as Cubase).
  • Minor user interface changes (fonts, layout).

V1.2 (2008/02/25)

  • Fixed a crash on certain configurations while opening the global settings window.
  • Settings window is now faster to open.

V1.1 (2007/12/13)

  • User can now define a name for each curve which is displayed in the main view.
  • Non connected curves are now easy to identify.
  • Improved display refresh rate: analysis is now even smoother!
  • New "zoom by selection" feature.

V1.0 (2007/11/05)

First version.

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